O'Casek v. Children's Home and Aid Society of Illinois ( 2008 )


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  •                          Docket No. 105050.
    IN THE
    SUPREME COURT
    OF
    THE STATE OF ILLINOIS
    MARJORIE O’CASEK, Special Administrator of the Estate of Carla
    Thompson, Deceased, Appellee, v. CHILDREN’S HOME AND AID
    SOCIETY OF ILLINOIS (OSF St. Joseph Medical Center et al.,
    Appellants).
    Opinion filed June 19, 2008.
    JUSTICE FITZGERALD delivered the judgment of the court,
    with opinion.
    Justices Freeman, Kilbride, and Burke concurred in the judgment
    and opinion.
    Justice Karmeier dissented, with opinion, joined by Chief Justice
    Thomas and Justice Garman.
    OPINION
    Defendants, OSF Healthcare Systems (OSF), Richard D. Castillo,
    M.D., and Susan G. Emmerson, M.D., appeal from a judgment of the
    appellate court reversing the dismissal of plaintiff’s medical
    malpractice action. At issue is whether plaintiff, Marjorie O’Casek,
    special administrator of the estate of Carla Thompson, deceased, was
    entitled to a 90-day extension in which to file a certificate of merit, in
    support of her malpractice action, as required by section 2–622 of the
    Code of Civil Procedure (735 ILCS 5/2–622 (West 2002)).
    Resolution of this issue turns on whether Public Act 90–579
    reenacted that version of section 2–622 which this court held
    unconstitutional, on severability principles, in Best v. Taylor Machine
    Works, 
    179 Ill. 2d 367
    (1997). The appellate court held that,
    according to Public Act 94–677, that version of section 2–622
    “disappeared with Best and was never reenacted.” 
    374 Ill. App. 3d 507
    , 513. Accordingly, plaintiff was entitled to a 90-day extension
    and her complaint should be allowed to 
    proceed. 374 Ill. App. 3d at 515
    .
    For the reasons that follow, we affirm the judgment of the
    appellate court.
    BACKGROUND
    History of Section 2–622
    Before 1995, section 2–622 of the Code of Civil Procedure
    (commonly known as the Healing Art Malpractice Act) stated in
    relevant part, as follows:
    “§2–622. Healing art malpractice. (a) In any action,
    whether in tort, contract or otherwise, in which the plaintiff
    seeks damages for injuries or death by reason of medical,
    hospital, or other healing art malpractice, the plaintiff’s
    attorney or the plaintiff, if the plaintiff is proceeding pro se,
    shall file an affidavit, attached to the original and all copies of
    the complaint, declaring one of the following:
    1. That the affiant has consulted and reviewed the facts of
    the case with a health professional who the affiant reasonably
    believes: (i) is knowledgeable in the relevant issues involved
    in the particular action; (ii) practices or has practiced within
    the last 6 years or teaches or has taught within the last 6 years
    in the same area of health care or medicine that is at issue in
    the particular action; and (iii) is qualified by experience or
    demonstrated competence in the subject of the case; that the
    reviewing health professional has determined in a written
    report, after a review of the medical record and other relevant
    material involved in the particular action that there is a
    reasonable and meritorious cause for the filing of such action;
    and that the affiant has concluded on the basis of the
    -2-
    reviewing health professional’s review and consultation that
    there is a reasonable and meritorious cause for filing of such
    action. If the affidavit is filed as to a defendant who is a
    physician licensed to treat human ailments without the use of
    drugs or medicines and without operative surgery, a dentist,
    a podiatrist, or a psychologist, the written report must be from
    a health professional licensed in the same profession, with the
    same class of license, as the defendant. For affidavits filed as
    to all other defendants, the written report must be from a
    physician licensed to practice medicine in all its branches. In
    either event, the affidavit must identify the profession of the
    reviewing health professional. A copy of the written report,
    clearly identifying the plaintiff and the reasons for the
    reviewing health professional’s determination that a
    reasonable and meritorious cause for the filing of the action
    exists, must be attached to the affidavit, but information
    which would identify the reviewing health professional may
    be deleted from the copy so attached.
    2. That the affiant was unable to obtain a consultation
    required by paragraph 1 because a statue of limitations would
    impair the action and the consultation required could not be
    obtained before the expiration of the statute of limitations. If
    an affidavit is executed pursuant to this paragraph, the
    certificate and written report required by paragraph 1 shall be
    filed within 90 days after the filing of the complaint. The
    defendant shall be excused from answering or otherwise
    pleading until 30 days after being served with a certificate
    required by paragraph 1.” 735 ILCS 5/2–622 (West 1994).
    Under this version of section 2–622, upon the filing of an appropriate
    affidavit, a medical malpractice plaintiff was entitled to a 90-day
    extension to file the required certificate of merit, irrespective of
    whether the plaintiff had previously voluntarily dismissed his or her
    cause of action. Cargill v. Czelatdko, 
    353 Ill. App. 3d 654
    , 657
    (2004); Neuman v. Burstein, 
    230 Ill. App. 3d 33
    , 37-38 (1992).
    The Civil Justice Reform Amendments of 1995 (Pub. Act 89–7,
    eff. March 9, 1995) amended section 2–622 in two respects. First, the
    language in section 2–622(a)(1) permitting the identity of the
    reviewing health professional to be deleted from the report was
    -3-
    stricken from the statute and the following language was added: “The
    report shall include the name and the address of the health
    professional.” Second, and relevant to this appeal, section
    2–622(a)(2) was amended to add another requirement to the attorney
    affidavit, namely, that the “plaintiff has not previously voluntarily
    dismissed an action based upon the same or substantially the same
    acts, omissions, or occurrences.” Thus, under Public Act 89–7, a
    plaintiff was precluded from obtaining a 90-day extension to file a
    certificate of merit if the plaintiff previously voluntarily dismissed the
    same or substantially the same cause of action.
    On December 18, 1997, this court held Public Act 89–7 void in
    its entirety. 
    Best, 179 Ill. 2d at 467
    . The amendments made to section
    2–622 were not among the core provisions held substantively
    unconstitutional, but were nonetheless deemed invalid because the
    core provisions could not be severed from the balance of the act. 
    Best, 179 Ill. 2d at 467
    . We noted that the General Assembly was “free to
    reenact whatever provisions it deems desirable or appropriate.” 
    Best, 179 Ill. 2d at 471
    . With our decision in Best, section 2–622 reverted
    to the pre-1995 version, quoted above.
    On February 4, 1998, less than two months after our decision in
    Best, the General Assembly passed Public Act 90–579. Effective May
    1, 1998, Public Act 90–579 amended section 2–622(a)(1) by adding
    naprapaths to the list of covered health professionals. Notably,
    however, Public Act 90–579 did not add naprapaths to the pre-1995
    version of section 2–622 that was in effect after Best. Rather, it added
    naprapaths to the 1995 version struck down in Best. Public Act
    90–579 stated:
    “The Code of Civil Procedure is amended by changing
    Section 2–622 as follows:
    (735 ILCS 5/2–622) (from Ch. 110, par. 2–622)
    §2–622. Healing art malpractice.
    (a) In any action, whether in tort, contract or otherwise, in
    which the plaintiff seeks damages for injuries or death by
    reason of medical, hospital, or other healing art malpractice,
    the plaintiff’s attorney or the plaintiff, if the plaintiff is
    proceeding pro se, shall file an affidavit, attached to the
    -4-
    original and all the copies of the complaint, declaring one of
    the following:
    1. That the affiant has consulted and reviewed the
    facts of the case with a health professional who the affiant
    reasonably believes: (i) is knowledgeable in the relevant
    issues involved in the particular action; (ii) practices or
    has practiced within the last 6 years or teaches or has
    taught within the last 6 years in the same area of health
    care or medicine that is at issue in the particular action;
    and (iii) is qualified by experience or demonstrated
    competence in the subject of the case; that the reviewing
    health professional has determined in a written report,
    after a review of the medical record and other relevant
    material involved in the particular action that there is a
    reasonable and meritorious cause for filing of such action;
    and that the affiant has concluded on the basis of the
    reviewing health professional’s review and consultation
    that there is a reasonable and meritorious cause for filing
    such action. If the affidavit is filed as to a defendant who
    is a physician licensed to treat human ailments without the
    use of drugs or medicines and without operative surgery,
    a dentist, a podiatrist, or a psychologist, or a naprapath,
    the written report must be from a health professional
    licensed in the same profession, with the same class of
    license, as the defendant. For affidavits filed as to all
    other defendants, the written report must be from a
    physician licensed to practice medicine in all its branches.
    In either event, the affidavit must identify the profession
    of the reviewing health professional. A copy of the written
    report, clearly identifying the plaintiff and the reasons for
    the reviewing health professional’s determination that a
    reasonable and meritorious cause for the filing of the
    action exists, must be attached to the affidavit. The report
    shall include the name and the address of the health
    professional.
    2. That the plaintiff has not previously voluntarily
    dismissed an action based upon the same or substantially
    the same acts, omissions, or occurrences and that the
    -5-
    affiant was unable to obtain a consultation required by
    paragraph 1 because a statute of limitations would impair
    the action and the consultation required could not be
    obtained before the expiration of the statute of limitations.
    If an affidavit is executed pursuant to this paragraph, the
    certificate and written report required by paragraph 1 shall
    be filed within 90 days after the filing of the complaint.
    The defendant shall be excused from answering or
    otherwise pleading until 30 days after being served with
    a certificate required by paragraph 1.
    ***
    (i) This amendatory Act of 1997 does not apply to or
    affect any actions pending at the time of its effective date,
    but applies to cases filed on or after its effective date.”
    (Strikeouts and italics in original.) Pub. Act 90–579, eff.
    May 1, 1998.
    During the next several years, no further amendments to section
    2–622 were adopted, and no published opinion from the appellate
    court or this court directly addressed the effect of Public Act 90–579
    on section 2–622. But see Giegoldt v. Condell Medical Center, 
    328 Ill. App. 3d 907
    , 912 (2002) (where the Second District implicitly
    recognized that Public Act 90–579 reenacted the 1995 version of
    section 2–622). In 2004, however, the Fourth District entertained an
    interlocutory appeal, pursuant to Rule 308(a) (
    155 Ill. 2d
    R. 308(a)),
    which expressly asked: “Did P.A. 90–579 resurrect the amendments
    to [s]ection 2–622 of the Code of Civil Procedure (inserted by P.A.
    89–7) which had been found unconstitutional by the Illinois Supreme
    Court’s decision in Best v. Taylor Machine Works”? Cargill v.
    Czelatdko, 
    353 Ill. App. 3d 654
    , 655 (2004). The appellate court
    answered in the affirmative. 
    Cargill, 353 Ill. App. 3d at 661
    .
    In Cargill, the appellate court noted that the legislature is
    presumed to act with knowledge of the prevailing case law. 
    Cargill, 353 Ill. App. 3d at 658
    . Accordingly, the appellate court presumed
    that the legislature was aware of the Best ruling and its impact on
    Public Act 89–7. 
    Cargill, 353 Ill. App. 3d at 658
    . The appellate court
    held that when the legislature passed Public Act 90–579, with the
    same language as in Public Act 89–7, the legislature intended it to
    have the same effect and was simply following the supreme court’s
    -6-
    pronouncement in Best that desirable provisions could be reenacted.
    
    Cargill, 353 Ill. App. 3d at 660
    . The appellate court rejected the
    plaintiff’s argument that Public Act 90–579 was defective because the
    operative language was not italicized. 
    Cargill, 353 Ill. App. 3d at 660
    -61. The court explained that section 5 of the Statute on Statutes
    (5 ILCS 70/5 (West 2002)), on which the plaintiff relied, “does not
    require italics for new matters to be valid.” 
    Cargill, 353 Ill. App. 3d at 660
    . The appellate court concluded that, “in looking at the plain
    language of the statute, if a physician’s report is not attached to the
    complaint, the plaintiff must attach an affidavit indicating he ‘has not
    previously voluntarily dismissed an action based upon the same or
    substantially the same acts.’ ” 
    Cargill, 353 Ill. App. 3d at 661
    ,
    quoting 735 ILCS 5/2–622(a)(2) (West 2002). The appellate court
    further held that in a refiled healing art malpractice case the circuit
    court has no discretion to waive the affidavit requirement, and that
    failure to comply mandates dismissal of the complaint with prejudice.
    
    Cargill, 353 Ill. App. 3d at 662
    .
    Approximately seven months following the Cargill opinion, the
    General Assembly passed Public Act 94–677. Effective August 25,
    2005, Public Act 94–677 made various changes to Illinois law with
    the stated purpose of addressing the “health care crisis” and
    instituting “reforms to the civil justice system” and to “the current
    medical malpractice situation.” Pub. Act 94–677, art. 1, §101, eff.
    August 25, 2005. Relevant to this appeal, section 330 of Public Act
    94–677 amended the Code of Civil Procedure by “reenacting and
    changing” section 2–622. Pub. Act 94–677, art. 3, §330, eff. August
    25, 2005. Unlike Public Act 90–579, which used the 1995 version of
    section 2–622, Public Act 94–677 used the pre-1995 version of
    section 2–622, with the exception that it also incorporated the
    naprapath amendment contained in Public Act 90–579. For clarity,
    we set forth below the pertinent provisions of Public Act 94–677:
    “The Code of Civil Procedure is amended by reenacting
    and changing Sections 2–622 and 8–2501, by changing
    Section 8–1901, and by adding Sections 2–1704.5 and
    2–1706.5 as follows:
    (735 ILCS 5/2–622) (from Ch. 110, par. 2–622)
    (Text of Section WITHOUT the changes made by P.A.
    89–7, which has been held unconstitutional)
    -7-
    Sec. 2–622. Healing art malpractice.
    (a) In any action, whether in tort, contract or otherwise, in
    which the plaintiff seeks damages for injuries or death by
    reason of medical, hospital, or other healing art malpractice,
    the plaintiff’s attorney or the plaintiff, if the plaintiff is
    proceeding pro se, shall file an affidavit, attached to the
    original and all copies of the complaint, declaring one of the
    following:
    1. That the affiant has consulted and reviewed the
    facts of the case with a health professional who the affiant
    reasonably believes: (i) is knowledgeable in the relevant
    issues involved in the particular action; (ii) practices or
    has practiced within the last 5 6 years or teaches or has
    taught within the last 5 6 years in the same area of health
    care or medicine that is at issue in the particular action;
    and (iii) meets the expert witness standards set forth in
    paragraphs (a) through (d) of Section 8–2501; is
    qualified by experience or demonstrated competence in
    the subject of the case; that the reviewing health
    professional has determined in a written report, after a
    review of the medical record and other relevant material
    involved in the particular action that there is a reasonable
    and meritorious cause for the filing of such action; and
    that the affiant has concluded on the basis of the
    reviewing health professional’s review and consultation
    that there is a reasonable and meritorious cause for filing
    of such action. A single written report must be filed to
    cover each defendant in the action. As to defendants who
    are individuals, the If the affidavit is filed as to a
    defendant who is a physician licensed to treat human
    ailments without the use of drugs or medicines and
    without operative surgery, a dentist, a podiatrist, a
    psychologist, or a naprapath, The written report must be
    from a health professional licensed in the same
    profession, with the same class of license, as the
    defendant. For written reports affidavits filed as to all
    other defendants, who are not individuals, the written
    report must be from a physician licensed to practice
    -8-
    medicine in all its branches who is qualified by experience
    with the standard of care, methods, procedures and
    treatments relevant to the allegations at issue in the case.
    In either event, the written report affidavit must identify
    the profession of the reviewing health professional. A
    copy of the written report, clearly identifying the plaintiff
    and the reasons for the reviewing health professional’s
    determination that a reasonable and meritorious cause for
    the filing of the action exists, including the reviewing
    health care professional’s name, address, current license
    number, and state of licensure, must be attached to the
    affidavit, but information which would identify the
    reviewing health professional may be deleted from the
    copy so attached. Information regarding the preparation
    of a written report by the reviewing health professional
    shall not be used to discriminate against that professional
    in the issuance of medical liability insurance or in the
    setting of that professional’s medical liability insurance
    premium. No professional organization may discriminate
    against a reviewing health professional on the basis that
    the reviewing health professional has prepared a written
    report.
    2. That the affiant was unable to obtain a consultation
    required by paragraph 1 because a statute of limitations
    would impair the action and the consultation required
    could not be obtained before the expiration of the statute
    of limitations. If an affidavit is executed pursuant to this
    paragraph, the affidavit certificate and written report
    required by paragraph 1 shall be filed within 90 days after
    the filing of the complaint. No additional 90-day
    extensions pursuant to this paragraph shall be granted,
    except where there has been a withdrawal of the
    plaintiff’s counsel. The defendant shall be excused from
    answering or otherwise pleading until 30 days after being
    served with an affidavit and a report a certificate required
    by paragraph 1.
    ***
    -9-
    (j) The changes to this Section made by this amendatory
    Act of the 94th General Assembly apply to causes of action
    accruing on or after its effective date.” (Strikeouts and italics
    in original.) Pub. Act 94–677, eff. August 25, 2005.
    The effect of Public Acts 90–579 and 94–677 on section 2–622
    is the subject of the present dispute, to which we now turn.1
    The Present Dispute
    On August 30, 2002, plaintiff filed an amended complaint at law
    in the Cook County circuit court alleging medical malpractice by
    defendants in connection with a tonsillectomy performed on
    decedent, Carla Thompson, on August 29, 2000.2 Attached to the
    amended complaint was an affidavit provided by plaintiff’s attorney
    stating that he had been unable to obtain a consultation with a health
    professional before the expiration of the statute of limitations, and
    that the required certificate and report would be filed within 90 days.
    Plaintiff failed to do so, and defendant Emmerson filed a section
    2–619 motion to dismiss (735 ILCS 5/2–619 (West 2002). Plaintiff
    responded with a motion to voluntarily dismiss the complaint (735
    ILCS 5/2–1009 (West 2002)). The trial court granted plaintiff’s
    motion without prejudice.
    One year later, on February 23, 2004, plaintiff refiled her cause of
    action. Although the refiled action was brought in Cook County, the
    cause was later transferred, on OSF’s motion, to McLean County.
    Attached to the refiled complaint was an affidavit from plaintiff’s
    counsel stating that he had been unable to obtain a consultation with
    1
    On November 13, 2007, the circuit court of Cook County, in case No.
    2006 L 12109, declared a portion of Public Act 94–677 unconstitutional
    and the act invalid in its entirety. That ruling has been appealed directly to
    this court pursuant to Supreme Court Rule 302 (210 Ill. 2d R. 302(a)(1))
    and is currently pending. Lebron v. Gottlieb Memorial Hospital, Nos.
    105741, 105745 cons.
    2
    The amended complaint, as well as the refiled complaint, included a
    negligence count against the Children’s Home and Aid Society, which
    owned and operated the residential facility where the decedent resided.
    This entity is not a party to this appeal.
    -10-
    a health professional and that the required certificate and report would
    be filed within 90 days. Within the 90 days, plaintiff’s attorney filed
    a certificate of merit with a physician’s report.
    Defendants OSF and Castillo filed a section 2–619 motion to
    dismiss arguing, in relevant part, that plaintiff had failed to satisfy the
    requirements of section 2–622. Relying on the appellate court’s
    opinion in Cargill, defendants maintained that where, as here, a
    certificate of merit is not attached to the complaint, the plaintiff’s
    attorney must file an affidavit stating, in pertinent part, that plaintiff
    “ ‘has not previously voluntarily dismissed an action based upon the
    same or substantially the same acts.’ ” 
    Cargill, 353 Ill. App. 3d at 661
    , quoting 735 ILCS 5/2–622(a)(2) (West 2002). Defendants
    argued that in light of the earlier voluntary dismissal of plaintiff’s
    complaint, plaintiff could not satisfy the affidavit requirements of
    section 2–622 and plaintiff’s cause of action should be dismissed.
    Defendant Emmerson filed a similar dismissal motion. In response,
    plaintiff argued that the affidavit requirement on which defendants
    relied violates the equal protection clause of the federal and state
    constitutions by imposing an excessive restriction on medical
    malpractice plaintiffs’ access to the judicial system, without a
    compelling state interest. See U.S. Const., amend. XIV, §1; Ill. Const.
    1970, art. I, §2. The trial court rejected plaintiff’s equal protection
    argument and granted defendants’ dismissal motions.
    Plaintiff filed a motion for reconsideration, arguing for the first
    time that Public Act 90–579 was passed in violation of the three-
    readings clause of the Illinois Constitution (Ill. Const. 1970, art. IV,
    §8(d)). Plaintiff further argued, for the first time, that section 2–622
    violates due process (U.S. Const., amend. XIV, §1; Ill. Const. 1970,
    art. I, §2) and constitutes impermissible special legislation (Ill. Const.
    1970, art. IV, §13). Plaintiff also reasserted her equal protection
    challenge. Defendant Emmerson filed a motion to strike plaintiff’s
    reconsideration motion, arguing that plaintiff improperly raised new
    legal theories. See Coles-Moultrie Electric Cooperative v. City of
    Sullivan, 
    304 Ill. App. 3d 153
    , 166 (1999).
    While the foregoing motions were pending, Public Act 94–677
    became law. A month later, plaintiff sought leave to supplement her
    reconsideration motion. In her supplement, plaintiff argued that
    Public Act 94–677 clearly establishes that the General Assembly did
    -11-
    not intend Public Act 90–579 to make substantive changes to section
    2–622, other than to add naprapaths to the list of health professionals.
    According to plaintiff, the holding in Cargill–that Public Act 90–579
    reenacted the 1995 version of section 2–622–was made in error, and
    that under the pre-1995 version of section 2–622, she was entitled to
    obtain a 90-day extension to file a certificate of merit,
    notwithstanding her prior voluntary dismissal. Defendants objected
    to plaintiff’s supplement, arguing that plaintiff was improperly raising
    new issues, the circuit court was bound by Cargill, and plaintiff’s
    supplement should be stricken.
    The circuit court denied plaintiff’s motion for reconsideration.
    The record does not disclose the basis for the court’s ruling.
    Plaintiff appealed the dismissal of her complaint and the denial of
    her reconsideration motion. The Fourth District, with dissent,
    reversed. 
    374 Ill. App. 3d 507
    . The majority held that, according to
    Public Act 94–677, the 1995 version of section 2–622 “disappeared
    with Best and was never 
    reenacted.” 374 Ill. App. 3d at 513
    . The
    majority focused on the parenthetical language that appears in Public
    Act 94–677, prior to the text of the 
    amendment. 374 Ill. App. 3d at 512
    . This language states: “(Text of Section WITHOUT the changes
    made by P.A. 89–7, which has been held unconstitutional).”
    (Emphasis in original.) Pub. Act 94–677, §330, eff. August 25, 2005.
    The majority viewed this language as an explicit rejection of the 1995
    version of section 
    2–622. 374 Ill. App. 3d at 512
    . The majority also
    concluded that the legislature’s use of the pre-1995 version of section
    2–622 as a template for the amendments made by Public Act 94–677
    should be construed as a continuation of an old law and not as a new
    
    enactment. 374 Ill. App. 3d at 513
    . The majority concluded that “[t]he
    legislature recognized Public Act 90–579 for its naprapath
    amendment, but not, in contradiction to Cargill’s assessment of
    Public Act 90–579’s effect, for any reenactment of the civil-reform
    language.” (Emphasis in 
    original.) 374 Ill. App. 3d at 513
    . Because
    the pre-1995 version of section 2–622 allowed a 90-day extension to
    file the required certificate and physician’s report, without regard to
    whether the plaintiff had previously taken a voluntary dismissal, the
    appellate court reversed the dismissal of plaintiff’s complaint and
    remanded the matter to the trial 
    court. 374 Ill. App. 3d at 515
    .
    -12-
    Justice Knecht, in dissent, maintained that the circuit court
    properly relied on the precedent established in Cargill, which was
    correctly decided, and that the majority’s approach was flawed. “The
    majority proposes to reverse that careful adherence to precedent by
    deferring to a later legislative enactment that attempts to say that is
    not what the law was because that is not what we wanted it to be. The
    legislature does not interpret its enactments–the courts do.” 374 Ill.
    App. 3d at 515 (Knecht, J., dissenting).
    Defendants filed a petition for rehearing and an application for a
    certificate of importance. See Ill. Const. 1970, art. VI, §4(c); 
    155 Ill. 2d
    R. 316. The appellate court denied the rehearing petition, but
    granted the application for a certificate of importance. The certificate
    states that it is granted “to review the issue of whether Public Act
    90–579 resurrected the civil-reform version of section 2–622 of the
    Code of Civil Procedure.” Under Rule 316, however, “the whole case
    comes before us and not just a particular issue.” People v. Crawford
    Distributing Co., 
    78 Ill. 2d 70
    , 73 (1979).
    ANALYSIS
    The purpose of a section 2–619 motion is to dispose of issues of
    law and easily proved issues of fact early in the litigation. Van Meter
    v. Darien Park District, 
    207 Ill. 2d 359
    , 367 (2003). Here, the basis
    for defendants’ dismissal motions was the plaintiff’s alleged failure
    to comply with the affidavit and certificate requirements of section
    2–622. Throughout this litigation section 2–622(g) has provided that
    the failure to file a certificate required by section 2–622 shall be
    grounds for dismissal under section 2–619. See, e.g., 735 ILCS
    5/2–622(g) (West 2002).
    On appeal from a section 2–619 motion, the reviewing court
    “must consider whether the existence of a genuine issue of material
    fact should have precluded the dismissal or, absent such an issue of
    fact, whether dismissal is proper as a matter of law.” Kedzie & 103rd
    Currency Exchange, Inc. v. Hodge, 
    156 Ill. 2d 112
    , 116-17 (1993). A
    court’s disposition of a section 2–619 motion is reviewed de novo.
    Van 
    Meter, 207 Ill. 2d at 368
    .
    Whether dismissal was proper in this case turns on an issue of
    statutory construction. Before we reach this issue, however, we must
    -13-
    consider two preliminary matters defendants raise: (1) whether
    plaintiff forfeited review of the statutory construction issue, as well
    as other issues first raised in plaintiff’s reconsideration motion and
    supplement; and (2) whether principles of stare decisis precluded the
    appellate court from reexamining its earlier decision in Cargill.
    Forfeiture
    Defendants argue that, with the exception of her equal protection
    argument, plaintiff forfeited consideration of the issues raised in her
    reconsideration motion and supplement by failing to raise such issues
    earlier. See Gardner v. Navistar International Transportation Corp.,
    
    213 Ill. App. 3d 242
    , 248 (1991) (stating that litigants should not be
    permitted to stand mute, lose a motion, and then gather new material
    to show the court erred in its ruling). The appellate court rejected
    defendants’ forfeiture argument, citing the “court’s duty to maintain
    a sound body of precedent,” as well as the oft-cited proposition that
    forfeiture is a limitation on the parties and not the court. 
    374 Ill. App. 3d
    at 514. For the following reasons, we also reject defendants’
    forfeiture argument.
    The lead argument in plaintiff’s supplement to her reconsideration
    motion concerned the effect of Public Act 94–677 on section 2–622.
    Plaintiff could not have raised this argument in response to
    defendants’ dismissal motions or in her initial reconsideration motion
    because Public Act 94–677 had not yet been enacted. While
    plaintiff’s reconsideration motion was pending, the General Assembly
    passed Public Act 94–677 and, within a month of its effective date,
    plaintiff sought leave to supplement her reconsideration motion.
    Because plaintiff raised this argument at the first opportunity to do so,
    we decline defendant’s invitation to find this issue forfeited based on
    a claim of untimeliness.
    Plaintiff also raised new issues on reconsideration that were
    independent of Public Act 94–677. Plaintiff argued that the legislative
    history of Public Act 90–579 demonstrated that the legislature did not
    intend to reenact the 1995 version of section 2–622. Plaintiff also
    raised new constitutional challenges to the statute. To the extent
    plaintiff forfeited consideration of these issues by failing to raise them
    sooner, we will overlook any forfeiture in the interest of maintaining
    -14-
    a sound and uniform body of precedent. Hux v. Raben, 
    38 Ill. 2d 223
    ,
    225 (1967); accord Village of Lake Villa v. Stokovich, 
    211 Ill. 2d 106
    ,
    121 (2004). As discussed below, the law within the Fourth District
    regarding the various amendments to section 2–622 is confused and
    the potential exists for conflict among the appellate districts.
    We note that while this case was being briefed in this court,
    another panel of the Fourth District “overruled” the appellate court
    judgment now under review. Crull v. Sriratana, 
    376 Ill. App. 3d 803
    (2007). Crull states:
    “[W]e need to clarify this court’s position regarding our
    earlier decision in Cargill, upon which we rely here, and
    which the O’Casek court concluded was incorrectly decided.
    We disagree with that conclusion and adhere both to Cargill’s
    result and analysis. To the extent that O’Casek is inconsistent
    with Cargill or this case, O’Casek is hereby overruled.” 
    Crull, 376 Ill. App. 3d at 817
    .
    But see 
    Crull, 376 Ill. App. 3d at 819
    (Myerscough, J., specially
    concurring in part and dissenting in part) (stating that the majority’s
    disagreement with O’Casek “is at best inappropriate and mere dicta”).
    Additionally, the First District, in Beauchamp v. Zimmerman, 
    359 Ill. App. 3d 143
    (2005), has given a favorable nod to the Cargill
    opinion. Beauchamp states:
    “[T]here has been some confusion regarding the effect of
    Public Act 90–579. Some have argued that Public Act 90–579
    was intended only to extend the requirements of section
    2–622 to those who practice the healing art of ‘naprapathy,’
    rather than to reenact the pre-Best [i.e., 1995] version of
    section 2–622; however, that argument was squarely rejected
    by this court in 
    Cargill, 353 Ill. App. 3d at 658
    , 818 N.E. 2d
    at 903. Thus, the provisions of section 2–622 limiting the
    statute of limitations exception to plaintiffs who have not
    already voluntarily dismissed the same or substantially the
    same claim, as well as the portion requiring that the
    consulting physician’s name and address be indicated on the
    report, apply with full force here.” Beauchamp, 
    359 Ill. App. 3d
    at 148 n.1.
    -15-
    See also 
    Giegoldt, 328 Ill. App. 3d at 912
    (where the Second District
    implicitly recognized that Public Act 90–579 reenacted the 1995
    version of section 2–622).
    Our decision to overlook any forfeiture in this case is made with
    the recognition that the new issues plaintiff raised were all issues of
    law which involved no problem of proofs, and that defendants were
    not deprived of an opportunity to present argument on these issues in
    the circuit court. See 
    Hux, 38 Ill. 2d at 225
    .
    Stare Decisis
    Defendants also argue that this court should reverse the appellate
    court judgment in order to affirm principles of stare decisis.
    Defendants maintain that adherence to precedent is required unless it
    can be shown that “serious detriment is likely to arise that will
    prejudice the public interest.” People v. Worden, 
    299 Ill. App. 3d 836
    ,
    838 (1998). According to defendants, “the majority’s overturning of
    its own Cargill decision does not advance the public interest. Instead,
    the decision does a disservice to all of the lower courts, courts of
    review and litigants that relied on the Cargill decision over the course
    of the last few years.”
    “The doctrine of stare decisis is the means by which courts ensure
    that the law will not merely change erratically, but will develop in a
    principled and intelligible fashion.” Chicago Bar Ass’n v. Illinois
    State Board of Elections, 
    161 Ill. 2d 502
    , 510 (1994). Where a court
    of review reexamines an issue already ruled upon and arrives at an
    inapposite decision, the straight path of stare decisis is affected, as
    well as the reliance interests of litigants, the bench, and the bar. These
    concerns, however, provide an insufficient basis on which to reverse
    the appellate court in the present case.
    “ ‘[S]tare decisis requires courts to follow the decisions of higher
    courts, but does not bind courts to follow decisions of equal or
    inferior courts.’ ” Gillen v. State Farm Mutual Automobile Insurance
    Co., 
    215 Ill. 2d 381
    , 392 n.2 (2005), quoting Schiffner v. Motorola,
    Inc., 
    297 Ill. App. 3d 1099
    , 1102 (1998). Thus, the opinion of one
    district, division, or panel of the appellate court is not binding on
    other districts, divisions, or panels. 
    Gillen, 215 Ill. 2d at 392
    n.2. The
    appellate court here was not bound by the earlier Cargill opinion and
    -16-
    could part company with that decision without offending the doctrine
    of stare decisis. Whether the appellate court correctly concluded that
    the adoption of Public Act 94–677, which was not in existence when
    Cargill was decided, justifies a different result is an issue distinct
    from whether the appellate court was required to follow Cargill. On
    the latter issue, we find no error. Accordingly, we turn to the
    substantive issue before this court–whether Public Act 90–579
    reenacted the 1995 version of section 2–622 that was struck down in
    Best.
    Statutory Construction
    Issues of statutory construction present questions of law that we
    review de novo. In re Donald A.G., 
    221 Ill. 2d 234
    , 246 (2006). As in
    all cases of statutory construction, our primary objective is to
    ascertain and give effect to the intent of the legislature. Donald 
    A.G., 221 Ill. 2d at 246
    .
    Defendants maintain that the appellate court erred in relying on
    Public Act 94–677 to ascertain the intent of the General Assembly
    when it adopted Public Act 90–579 seven years earlier. Defendants
    assert that the appellate court’s judgment creates instability in the law
    because any enactment would be subject to the vagaries of a later
    legislative body. Defendants also argue, in line with the dissenting
    justice, that the appellate court opinion effectively permits the
    legislature to both enact statutes and interpret them, running afoul of
    the separation of powers clause of the Illinois Constitution (Ill. Const.
    1970, art. II, §1). Finally, defendants argue that the appellate court
    opinion effectively holds that Public Act 94–677 changed the law
    enacted seven years earlier, stripping defendants of a “vested
    defense,” in violation of their due process rights (Ill. Const. 1970, art.
    I, §2).
    Plaintiff counters that the appellate court appropriately considered
    Public Act 94–677 in discerning the legislature’s intent when it
    passed Public Act 90–579. Plaintiff maintains that Public Act 90–579
    is ambiguous and a court may, therefore, consider subsequent
    amendments, as well as legislative history, to determine legislative
    intent. Finally, plaintiff argues that this court’s opinion in U.S. Bank
    National Ass’n v. Clark, 
    216 Ill. 2d 334
    (2005), which postdates
    -17-
    Cargill, supports the conclusion that Public Act 90–579 did not
    reenact the 1995 version of section 2–622.
    We begin our analysis by noting a fundamental rule of statutory
    construction: “Statutes are to be construed as they were intended to
    be construed when they were passed.” People v. Boreman, 
    401 Ill. 566
    , 572 (1948). Thus, the legislative intent that controls the
    construction of a public act is the intent of the legislature which
    passed the subject act, and not the intent of the legislature which
    amends the act. 
    Boreman, 401 Ill. at 572
    .
    Discerning legislative intent can be a thorny task, made even more
    problematic when we attempt to discern prior legislative intent based
    on the actions of a different legislature. As former Chief Justice Clark
    observed:
    “It is difficult enough, at times, to figure out what one
    legislature ‘intended’ by a particular statute or provision.
    After all, our General Assembly is not an actual person who
    feels, reasons, intends, and acts as a unit. Instead it is a
    collective entity, made up of 118 flesh-and-blood individuals
    who, in the privacy of their own minds, may mean by any
    particular provision anything or nothing. The collective nature
    of a legislative body impels us to seek ‘intent’ in the objective
    words of its statutes, as informed by our own judgment and
    common sense, rather than in the inevitably subjective
    thoughts of individual members.
    This task is complicated enough. We complicate it still
    further when we seek to infer what one legislature intended
    from the subsequent action of a later legislature, composed of
    different members and perhaps working towards different
    purposes.” People v. Hicks, 
    119 Ill. 2d 29
    , 39 (1987) (Clark,
    C.J., dissenting, joined by Simon, J.).
    See also Roth v. Yackley, 
    77 Ill. 2d 423
    , 428 (1979) (“it is logically
    difficult to perceive how the declaration and the amendments by the
    80th General Assembly can be simply a clarification of the intent of
    the 77th General Assembly which originally enacted the statute seven
    years earlier since only a fraction of the individuals who comprised
    the General Assembly were the same at both times”). Thus, courts
    -18-
    must proceed cautiously when examining future legislative
    enactments for evidence of past legislative intent.
    In the present case, the appellate court examined Public Act
    94–677, passed by the 94th General Assembly, to determine the intent
    of the 90th General Assembly when it passed Public Act 90–579
    seven years earlier. The appellate court first focused on the following
    parenthetical language that appears in Public Act 94–677 prior to the
    text of the amendment: “(Text of Section WITHOUT the changes
    made by P.A. 89–7, which has been held unconstitutional).”
    (Emphasis in original.) Pub. Act 94–677, §330, eff. August 25, 2005.
    The appellate court read this language as an explicit rejection by the
    General Assembly of the 1995 version of section 2–622. 
    374 Ill. App. 3d
    at 512.
    Defendants maintain, however, that this language was added not
    by the legislature, but by the Legislative Reference Bureau, as part of
    its statutory duties, after Public Act 94–677 was adopted. Defendants
    argue the language is merely shown for reference and is not a part of
    the act. See 25 ILCS 135/0.01 et seq. (West 2004) (establishing the
    Bureau and defining its duties); Legislative Reference Bureau, Illinois
    Bill Drafting Manual §25–50, at 101–02, §70–30, at 206-07 (January
    2007) (discussing parenthetical references). Defendants argue in the
    alternative that, even if the legislature added this language, it is akin
    to a preamble or title, which is not dispositive of legislative intent.
    See Atkins v. Deere & Co., 
    177 Ill. 2d 222
    , 228 (1997).
    We will assume, arguendo, that the parenthetical language, if not
    added by the legislature, was at least before the legislature when it
    adopted Public Act 94–677. That said, we agree with defendants that
    the parenthetical language does not evince legislative intent. Rather,
    this language is informational, i.e., the text of the amendment that
    follows the parenthetical language is, in fact, the text of section 2–622
    without the changes made by Public Act 89–7, which was held
    unconstitutional. To the extent this language could be read as some
    evidence of legislative intent, at most, it speaks to the intent of the
    94th General Assembly when it adopted Public Act 94–677 and not
    the intent of the 90th General Assembly when it adopted Public Act
    90–579.
    The appellate court’s determination that Public Act 90–579 did
    not reenact the 1995 version of section 2–622 was also based on its
    -19-
    conclusion that Public Act 94–677 “continued” the pre-1995 version
    of section 2–622, recognizing Public Act 90–579 only for its
    naprapath amendment. 
    374 Ill. App. 3d
    at 513. While we agree that
    Public Act 94–677 appears to recognize Public Act 90–579 only for
    its naprapath amendment, we are reluctant to conclude that Public Act
    94–677 merely continued the pre-1995 version of section 2–622. We
    note that section 330 of Public Act 94–677 plainly states: “The Code
    of Civil Procedure is amended by reenacting and changing Section[ ]
    2–622 ***.” (Emphasis added.) Pub. Act 94–677, art. 3, §330, eff.
    August 25, 2005. “Reenact” means “to enact (as a law) again.”
    Webster’s Third New International Dictionary 1907 (1993). “To
    reenact” does not mean “to continue.” Thus, any conclusion about the
    legislature’s intent based on a purported continuation of the pre-1995
    law is not on firm ground.
    The difficulty encountered above, in discerning the intent of the
    90th General Assembly based on the actions of the 94th General
    Assembly, is precisely the situation about which Justice Clark
    warned. 
    Hicks, 119 Ill. 2d at 39
    (Clark, C.J., dissenting, joined by
    Simon, J.). Thus, we return to the rule of statutory construction with
    which we began our analysis: “Statutes are to be construed as they
    were intended to be construed when they were passed.” 
    Boreman, 401 Ill. at 572
    .
    Public Act 90–579 was passed seven weeks after this court’s
    decision in Best. We presume that the legislature was aware of the
    Best decision, including this court’s pronouncement that it was free
    to reenact whatever provisions in Public Act 89–7 it deemed desirable
    or appropriate. See People v. De La Paz, 
    204 Ill. 2d 426
    , 433 (2003)
    (legislature is presumed to act with knowledge of the prevailing case
    law). Application of this presumption lends support to the inference
    that the legislature did just that–reenacted a provision of Public Act
    89–7 it deemed desirable. As plaintiff argues, however, new matter
    in an amendatory act is indicated by italics or underscoring. In this
    regard, the General Assembly Operations Act expressly states:
    “In the case of an amendatory Act, the changes made by the
    amendatory Act shall be indicated in the session laws in the
    following manner: (i) all new matter shall be underscored;
    and (ii) all matter deleted by the amendatory Act shall be
    shown crossed with a line.” 25 ILCS 10/10(f) (West 2004).
    -20-
    In addition, the Statute on Statutes provides:
    “In construing an amendatory Act printed in any volume
    of the session laws published after January 1, 1969, matter
    printed in italics shall be construed as new matter added by
    the amendatory Act, and matter shown crossed with a line
    shall be construed as matter deleted from the law by the
    amendatory Act.” 5 ILCS 70/5 (West 2004).
    Similarly, the Illinois House and Senate rules currently provide, as
    they did when Public Act 90–579 was adopted, that in any bill that
    amends a statute “[a]ll new matter shall be underscored” and “[a]ll
    matter that is to be omitted or superseded shall be shown crossed with
    a line.” 95th Ill. Gen. Assem. House R. 37(e), Senate R. 5–1(e); 90th
    Ill. Gen. Assem. House R. 37(e), Senate R. 5–1(e).3
    Because the Illinois Constitution requires that a “bill expressly
    amending a law shall set forth completely the sections amended” (Ill.
    Const. 1970, art. IV, §8(d)), the requirement of italics or underscoring
    to highlight new matter plays an important role in discerning
    legislative intent. Here, the only words highlighted in Public Act
    90–579 are the words adding naprapaths to the list of health
    professionals, lending support to the inference that this was the only
    change the legislature intended. Pub. Act 90–579, eff. May 1, 1998.
    To resolve these competing inferences regarding the intent of the
    legislature, we will go outside the language of Public Act 90–579 and
    examine its legislative history. Defendants argue that the language of
    Public Act 90–579 is unambiguous and resort to extrinsic aids, like
    legislative history, is inappropriate. We agree that “[w]hen the
    drafters’ intent can be ascertained from the statutory language, it must
    be given effect without resort to other aids for construction.” Illinois
    Graphics Co. v. Nickum, 
    159 Ill. 2d 469
    , 479 (1994). Here we cannot
    discern the drafters’ intent from the language of Public Act 90–579,
    however plain it may be. As the appellate court explained: “The
    question is not whether the civil-reform version of section 2–622, if
    validly resurrected, plainly prohibits a 90-day extension where a
    3
    We note that italics and underscoring are used interchangeably. See
    generally The Bluebook: A Uniform System of Citation 23 (18th ed. 2005)
    (discussing typeface conventions).
    -21-
    plaintiff has previously voluntarily dismissed. The question is
    whether Public Act 90–579 did in fact resurrect the civil-reform
    version of section 2–622.” (Emphasis in original.) 
    374 Ill. App. 3d
    at
    514-15.
    Public Act 90–579 began its life as Senate Bill 120. On January
    29, 1998, approximately six weeks after Best was decided, Senator
    Robert Madigan addressed Senate Bill 120:
    “Senator Madigan: *** The Conference Committee
    Report No. 1 to Senate Bill 120 puts naprapaths or the
    practice of naprapathy in line with other medical professions
    when it comes to [a] malpractice suit by stating that an
    affidavit against a naprapath in a malpractice suit has to be
    completed by another naprapath. That’s simply all that it
    does. I–I am aware of no opposition to this bill and would ask
    favorable consideration of Conference Committee Report No.
    1 to Senate Bill 120.” 90th Ill. Gen. Assem., Senate
    Proceedings, January 29, 1998, at 46 (statements of Senator
    Madigan).
    The Senate immediately thereafter took a vote, unanimously adopting
    the Conference Committee Report. Senate Bill 120 was declared
    passed. 90th Ill. Gen. Assem., Senate Proceedings, January 29, 1998,
    at 46. Less than a week later, Representative Daniel Burke spoke on
    Senate Bill 120 to his colleagues in the House:
    “Burke: *** Senate Bill 120, having passed out of the
    Senate and just considered in our committee, Executive
    Committee, yesterday, has to do with the practice of
    Naprapathy in the state, and, in particular, when a malpractice
    action is brought against any naprapath in the state, currently,
    only a medical doctor would be asked to testify in that action.
    We are asking that the statute be amended to suggest and
    include naprapaths as the professional that would testify in
    malpractice actions ***.” 90th Ill. Gen. Assem., House
    Proceedings, February 4, 1998, at 10 (statements of
    Representative Burke).
    The House of Representatives thereafter took a vote, unanimously
    adopting the Conference Committee Report. Senate Bill 120 was
    -22-
    declared passed. 90th Ill. Gen. Assem., House Proceedings, February
    4, 1998, at 11.
    The legislative history is devoid of any discussion of Best or the
    Civil Justice Reform Amendments that it struck. In addition, the
    legislative history affirmatively demonstrates that the General
    Assembly’s intent, when it adopted Public Act 90–579, was simply
    to add naprapaths to the coverage of section 2–622. This is consistent
    with the fact that only the naprapath language was highlighted.
    Although, in giving the amendment context, the legislature used the
    1995 version of section 2–622, we regard this as a legislative
    oversight. Accordingly, we hold that Public Act 90–579 did not
    reenact the version of section 2–622 that this court held invalid in
    Best. To the extent that Cargill, Crull, and other cases hold otherwise,
    they are hereby overruled.
    Our holding is consistent with this court’s opinion in U.S. Bank
    National Ass’n v. Clark, 
    216 Ill. 2d 334
    (2005). There we considered,
    inter alia, whether the legislature intended to reenact certain
    limitations on lender charges in section 4.1a of the Interest Act (815
    ILCS 205/4.1a (West 2002)), which had been implicitly repealed in
    1981, when the legislature amended that section in 1991. See Pub.
    Act 87–496, eff. January 1, 1992. The 1991 amendment added two
    provisions, but otherwise left unchanged the text of the statute that
    had been implicitly repealed. The defendants argued that if the
    relevant portion of section 4.1a was implicitly repealed in 1981, then
    the amendment of that section in 1991 constituted its “readoption.”
    U.S. 
    Bank, 216 Ill. 2d at 353
    . We rejected this argument:
    “Our Statute on Statutes provides that ‘the provisions of
    any statute, so far as they are the same as those of any prior
    statute, shall be construed as a continuation of such prior
    provisions, and not as a new enactment.’ 5 ILCS 70/2 (West
    2004). While this general rule is not limited to cases of
    implicit repeal, it is relevant to our analysis in that context.
    Specifically addressing the requirements for reenacting an
    implicitly repealed statute, this court explained in Lily Lake
    Road Defenders v. County of McHenry, 
    156 Ill. 2d 1
    , 8
    (1993), that the legislature ‘must expressly reenact a statute
    which has been repealed by implication to render it valid and
    enforceable again.’ (Emphasis added.)
    -23-
    Here, the [relevant] portion of section 4.1a *** was not
    changed by the 1991 amendment. The text of Public Act
    87–496 clearly designated the amendment as consisting of the
    addition of subparts (e) and (f), highlighting those provisions
    while merely reprinting, unchanged, the remaining,
    preexisting text. See Pub. Act 87–496, eff. January 1, 1992
    (amending Ill. Rev. Stat. 1989, ch. 17, par. 6406). Nothing in
    the text or structure of the amendatory act reveals any
    legislative ‘express’ intent to ‘reenact’ the ceiling on lender
    charges in section 4.1a. Indeed, our Statute on Statutes
    specifically precludes that conclusion. See 5 ILCS 70/2 (West
    2004); Lily 
    Lake, 156 Ill. 2d at 7
    .” U.S. 
    Bank, 216 Ill. 2d at 354
    .
    In U.S. Bank we also rejected the defendants’ argument that the
    legislature, when it adopted the 1991 amendment, was attempting to
    overcome the implicit repeal of section 4.1a’s limitation provisions
    that was recognized in Currie v. Diamond Mortgage Corp. of Illinois,
    
    859 F.2d 1538
    (7th Cir. 1988). U.S. 
    Bank, 216 Ill. 2d at 356
    . In
    rejecting this argument, we considered, among other things, the
    legislative history of the 1991 amendment, finding that it was wholly
    devoid of any discussion of cases or rulings considering the issue of
    implicit repeal. U.S. 
    Bank, 216 Ill. 2d at 356
    . We held that in the
    absence of any indication in either the language of the statute or its
    legislative history, we could not conclude that the legislature
    reenacted the implicitly repealed portion of section 4.1a by its 1991
    amendment, thus rendering the lender charge limitation in section
    4.1a enforceable and valid again. U.S. 
    Bank, 216 Ill. 2d at 356
    .
    We recognize that U.S. Bank involved the implicit repeal of a
    statute, whereas the present case involves the express invalidation of
    a public act by this court. Accordingly, the rule we applied in U.S.
    Bank–that the legislature must expressly reenact a statute which has
    been repealed by implication to render it valid and enforceable
    again–is inapplicable here. We also recognize, however, that our task
    in U.S. Bank was, at bottom, the same task we face today–discerning
    legislative intent in connection with a claimed reenactment–and the
    indicia of such intent that we examined in U.S. Bank are equally
    applicable to the case at bar. Thus, notwithstanding the difference
    between the two cases, favorable comparisons may be drawn.
    -24-
    Here, as in U.S. Bank, the amendment (Public Act 90–579), which
    defendants claim reenacted the invalid statute (the 1995 version of
    section 2–622), highlighted a minor amendment (the addition of the
    naprapath language) while merely reprinting, unchanged, the balance
    of the text. As we observed in U.S. Bank, nothing in the “text or
    structure” of the amendment indicates an intent to reenact the invalid
    statute. U.S. 
    Bank, 216 Ill. 2d at 354
    . Further, like U.S. Bank, the
    legislative history of the public act at issue contains no discussion of
    the opinion (Best) that rendered the underlying statute (Public Act
    89–7) invalid. Finally, as in U.S. Bank, we will not construe the mere
    iteration of a prior law as a new enactment. See 5 ILCS 70/2 (West
    2004); 735 ILCS 5/1–102 (West 2004). Thus, the conclusion we
    reach here is necessarily the same conclusion we reached in U.S.
    Bank: the legislature did not intent a reenactment.
    Based on the foregoing, we agree with plaintiff that her medical
    malpractice complaint is governed by the pre-1995 version of section
    2–622, as amended with the addition of the naprapath language found
    in Public Act 90–579. That version contains no limitation on
    obtaining a 90-day extension to file a certificate of merit in a refiled
    action. See 735 ILCS 5/2–622 (West 1994); 
    Cargill, 353 Ill. App. 3d at 657
    ; 
    Neuman, 230 Ill. App. 3d at 37-38
    . No dispute exists that
    plaintiff filed her certificate of merit within 90 days of her refiled
    complaint. Therefore, we affirm the judgment of the appellate court
    reversing the circuit court’s dismissal of plaintiff’s complaint.
    Separation of Powers and Due Process
    Defendants argue that affirmance of the appellate court judgment
    would effect a violation of our state constitution. Specifically,
    defendants argue that the appellate court opinion permits the
    legislature to both enact statutes and interpret them, running afoul of
    the separation of powers clause (Ill. Const. 1970, art. II, §1). In
    addition, defendants argue that the appellate court opinion effectively
    holds that Public Act 94–677 changed the law enacted seven years
    earlier, stripping defendants of a “vested defense,” in violation of
    their due process rights (Ill. Const. 1970, art. I, §2).
    Although we affirm the appellate court judgment, as discussed
    above, we do not adopt the reasoning of the appellate court. The
    -25-
    appellate court’s determination of whether Public Act 90–579
    reenacted the 1995 version of section 2–622 was based upon an
    examination of Public Act 94–677. Our determination of this issue,
    however, ultimately rests on our examination of Public Act 90–579.
    Accordingly, the constitutional provisions defendants cite are not
    implicated by our holding, and we find it unnecessary to consider
    defendants’ constitutional arguments further.
    CONCLUSION
    For the reasons discussed, we affirm the judgment of the appellate
    court reversing the dismissal of plaintiff’s complaint.
    Affirmed.
    JUSTICE KARMEIER, dissenting:
    Contrary to the majority, I would hold that the circuit court
    properly dismissed plaintiff’s medical malpractice action with
    prejudice based on her failure to comply with the provisions of
    section 2–622 of the Code of Civil Procedure (735 ILCS 5/2–622
    (West 2004)). As the majority’s opinion explains, plaintiff had
    previously taken a voluntary dismissal of her complaint. When she
    refiled the action in February of 2004, she failed to attach to her
    complaint the affidavit required by section 2–622(a)(1) of the Code
    (735 ILCS 5/2–622(a)(1) (West 2004)) declaring that she had
    consulted with a health professional who believed that she had
    reasonable and meritorious cause for filing the action. Section
    2–622(g) of the Code (735 ILCS 5/2–622(g) (West 2004)) expressly
    provides that the failure to include such a certificate “shall be grounds
    for dismissal under Section 2–619” of the Code (735 ILCS 5/2–619
    (West 2004)). When defendants moved to dismiss under section
    2–619 based on the absence of the requisite certification, the court
    therefore had no discretion regarding how to proceed. Dismissal was
    mandatory. See Hull v. Southern Illinois Hospital Services, 356 Ill.
    App. 3d 300, 305 (2005).
    Plaintiff believed that she could avoid this result by including an
    affidavit from her lawyer indicating that he had been unable to obtain
    a consultation with a health professional before expiration of the
    -26-
    statute of limitations and indicating that the required certificate and
    report would be filed within 90 days. That approach was untenable.
    Although section 2–622(a)(2) of the Code (735 ILCS 5/2–622(a)(2)
    (West 2004)) authorizes the use of such an affidavit to defer
    compliance with the certification requirement of section 2–622(a)(1),
    the statute expressly limits use of the affidavit option to situations
    where the plaintiff had not previously taken a voluntary dismissal of
    an action based on the same or substantially the same acts, omissions
    or occurrences underlying the current action. Because plaintiff had
    previously taken such a voluntary dismissal, this option was not
    available to her.
    Faced with this predicament, plaintiff argued that the “no previous
    dismissal” limitation set forth in section 2–622(a)(2) should be read
    out of the statute. In her view, the legislature never intended to adopt
    that portion of the law and it should not be given any legal effect.
    Instead, she urged reliance of the version of the statute as it existed
    prior to the Civil Justice Reform Amendments of 1995 (Pub. Act
    89–7, eff. March 9, 1995) invalidated by this court’s decision in Best
    v. Taylor Machine Works, 
    179 Ill. 2d 367
    (1997). Under that earlier
    version, the affidavit option to defer compliance with the certification
    requirement was not limited to situations where there had been no
    prior voluntary dismissal. Plaintiff’s complaint would therefore not
    have been subject to dismissal on that basis.
    Arguments similar to plaintiff’s have been considered and
    rejected by the appellate court. See Cargill v. Czelatdko, 
    353 Ill. App. 3d
    654 (2004); accord Crull v. Sriratana, 
    376 Ill. App. 3d 803
    (2007)
    (applying different provision of 2–622 but specifically endorsing
    Cargill’s result and analysis); see also Beauchamp v. Zimmerman,
    
    359 Ill. App. 3d 143
    , 148 n.1 (2005) (following Cargill); Giegoldt v.
    Condell Medical Center, 
    328 Ill. App. 3d 907
    , 912 (2002) (assuming,
    without deciding, that the version of the statute at issue in this case,
    rather than the version in effect before the Civil Justice Reform
    Amendments of 1995, applied to render plaintiff’s complaint
    insufficient as a matter of law).
    -27-
    The decision by the appellate court in this case was the first to
    reach a contrary conclusion.4 While the majority agrees with that
    result, I do not believe it can be squared with fundamental principles
    of statutory construction. It is axiomatic that in interpreting a statute,
    the primary rule of construction, to which all other rules are
    subordinate, is to ascertain and give effect to the true intent and
    meaning of the legislature. In re Application for Judgment & Sale of
    Delinquent Properties for the Tax Year 1989, 
    167 Ill. 2d 161
    , 168
    (1995). The best evidence of that intent is, of course, the language of
    the statute itself. U.S. Bank National Ass’n v. Clark, 
    216 Ill. 2d 334
    ,
    346 (2005). When the language is unambiguous, the statute must be
    applied as written without resorting to other aids of construction.
    People v. Bywater, 
    223 Ill. 2d 477
    , 481 (2006).
    4
    4
    The majority is correct that stare decisis did not bar the appellate court
    from departing from past precedent. In reaching that conclusion, however,
    they fail to distinguish between vertical and horizontal stare decisis. The
    doctrine of vertical stare decisis requires inferior tribunals to follow the
    decisions of superior ones. The doctrine of horizontal stare decisis pertains
    to a court’s responsibility to follow its own precedent or the precedent of
    coequal courts. A. Solomon, A Simple Prescription for Texas’s Ailing
    Court System: Stronger Stare Decisis, 37 St. Mary’s L.J. 417, 424-25
    (2006). It is this latter form of stare decisis which is at issue here. Unlike
    vertical stare decisis, which has been viewed, historically, as an obligation,
    horizontal stare decisis has been regarded as a matter of sound policy. See
    W. Consovoy, The Rehnquist Court and the End of Constitutional Stare
    Decisis: Casey, Dickerson and the Consequences of Pragmatic
    Adjudication, 
    2002 Utah L
    . Rev. 53, 58. This approach is reflected in those
    decisions of our court which have held that stare decisis is not an
    inexorable command. It is, instead, a recognition of the principle that our
    system of justice works best when the law does not change erratically, but
    rather develops in a principled, intelligible fashion. See, e.g., People v.
    Colon, 
    225 Ill. 2d 125
    , 145-46 (2007); Iseberg v. Gross, 
    227 Ill. 2d 78
    , 94-
    95 (2007). There is no question under Illinois law that courts may depart
    from their own precedent or the precedent established by a coequal court
    when they believe they have good cause or a compelling reason for doing
    so, e.g., where they believe the existing decisions are unworkable or badly
    reasoned. People v. Sharpe, 
    216 Ill. 2d 481
    , 520 (2005).
    -28-
    In this case the legislation enacted by the General Assembly
    clearly and unambiguously limited the use of the affidavit option in
    2–622(a)(2) of the Code (735 ILCS 5/2–622(a)(2) (West 2004)) to
    situations where the plaintiff “ha[d] not previously voluntarily
    dismissed an action based upon the same or substantially the same
    acts, omissions, or occurrences.” This provision could not be more
    straightforward. We have no authority to depart from the law’s plain
    meaning (see Solich v. George & Anna Portes Cancer Prevention
    Center of Chicago, Inc., 
    158 Ill. 2d 76
    , 83 (1994)), nor may we alter
    the statute’s language in “a way that constitutes a change in the plain
    meaning of the words actually adopted by the legislature” (U.S. Bank
    National Ass’n v. 
    Clark, 216 Ill. 2d at 346
    ).
    The majority’s opinion stands in direct conflict with these
    principles. It likewise violates the rule that, whenever possible, a
    court should construe a statute to give effect to each paragraph,
    sentence, clause, and word. See People v. Maggette, 
    195 Ill. 2d 336
    ,
    350 (2001). Under this rule, a court is required to construe a statute,
    if possible, so that no term is rendered superfluous or meaningless.
    See Ultsch v. Illinois Municipal Retirement Fund, 
    226 Ill. 2d 169
    , 187
    (2007). Rather than give meaning to the full text of the statute at issue
    in this case, however, the majority holds that critical portions of it
    have no effect whatever.
    The “no previous dismissal” limitation which is set forth in
    section 2–622(a)(2) and which was the predicate for the circuit
    court’s dismissal of plaintiff’s complaint was neither novel nor
    controversial. As the majority recounts, it was originally enacted five
    years before the events giving rise to this litigation as part of Civil
    Justice Reform Amendments of 1995 (Pub. Act 89–7, eff. March 9,
    1995) . Although the provision was temporarily rendered void by this
    court’s decision in Best v. Taylor Machine Works, 
    179 Ill. 2d 367
    (1997), that action was unrelated to the merits of section 2–622(a)(2)
    itself. It was, instead, a byproduct of the court’s determination that
    invalidation of the core provisions of the Civil Justice Reform
    Amendments of 1995 (Pub. Act 89–7, eff. March 9, 1995) rendered
    the remainder of that statute invalid as well. See 
    Best, 179 Ill. 2d at 467
    .
    Nothing in Best precluded the General Assembly from reenacting
    the noncore provisions of the Civil Justice Reform Amendments of
    -29-
    1995 (Pub. Act 89–7, eff. March 9, 1995) . To the contrary, we held
    there that because the remaining provisions of the statute were not
    challenged and were deemed invalid based solely on severability
    principles, the General Assembly was “free to reenact whatever
    provisions it deem[ed] desirable or appropriate.” 
    Best, 179 Ill. 2d at 471
    . With respect to section 2–622(a)(2), that is precisely what the
    General Assembly did. Less than two months after Best was decided,
    the legislature passed Public Act 90–579. That legislation restored
    section 2–622(a)(2) to precisely the same state it had been in before
    the Best decision, including its “no previous dismissal” limitation.
    The “no previous dismissal limitation” was therefore in full force and
    effect at the time Carla Thompson had the tonsillectomy which led to
    her death and Marjorie O’Casek brought this action as special
    administrator of Thompson’s estate.
    Contrary to the majority, I do not believe that inclusion of the “no
    previous dismissal” limitation in Public Act 90–579 can be dismissed
    as mere “legislative oversight.” The “legislative oversight’ theory
    presumes that the General Assembly somehow failed to realize that
    Best affected the prior version of the law. Under Illinois law,
    however, we must presume the opposite, namely, that in amending
    the statute, the General Assembly was fully aware of judicial
    decisions interpreting the statute and that it acted with this
    knowledge. Morris v. William L. Dawson Nursing Center, Inc., 
    187 Ill. 2d 494
    , 499 (1999).
    In the case of Best, this presumption is no mere legal fiction.
    Many of our decisions are little known by anyone besides the litigants
    and their lawyers. Such was not the case with Best. At the time it was
    decided, Best was highly publicized and vigorously debated. It was
    perhaps one of the most well-known decisions issued by this court in
    the 1990s. The reality is that no conscientious legislator in Illinois
    could possibly have been unfamiliar with it or its effects on the
    General Assembly’s tort reform initiatives, of which the “no previous
    dismissal” limitation was a part.
    The remarks of Senator Madigan and Representative Burke
    scarcely suffice to overcome this presumption. Although their
    statements regarding Public Act 90–579 deal with the addition of
    naprapaths to the list of health-care professionals covered by section
    2–622(a)(1) of the Code (735 ILCS 5/2–622(a)(1) (West 2004)), that
    -30-
    may be because the addition of naprapaths was the only genuinely
    new aspect of the legislation. The “no previous dismissal” limitation
    was simply a reenactment of a provision which had previously been
    debated and adopted. Given that the time allotted for floor debate is
    limited and considering that the Best decision did not call into
    question the substantive merits of that provision, Madigan and Burke
    may simply have believed that elaboration on that aspect of the
    legislation was unnecessary.
    I note, moreover, that Senator Madigan and Representative Burke
    are but 2 of the 177 members of the General Assembly. We have no
    basis for assuming that they were the only legislators familiar with the
    contents of Public Act 90–579, nor can we impute their personal
    views to the legislature as a whole. Here, as in most instances of this
    kind, no claim can be made that their assessment of the law was
    shared by the majority of their colleagues or even any of their
    colleagues. That is why floor debates are such an unreliable and
    unhelpful guide to ascertaining legislative intent and cannot, by
    themselves, affirmatively establish the intent of the legislature. See
    People v. R.L., 
    158 Ill. 2d 432
    , 442 (1994). In any case, whatever
    Senator Madigan and Representative Burke may have had in mind
    when they stood on the floor of their respective chambers and
    addressed their colleagues about Public Act 90–579, their views
    cannot supercede or undo the statute that was ultimately adopted by
    the General Assembly. Hadley v. Illinois Department of Corrections,
    
    224 Ill. 2d 365
    , 382 (2007). Indeed, because the language of the
    statute is clear and unambiguous, we should not even be referring to
    the floor debates or any other extrinsic aids of construction. Our
    obligation is to apply the law as written. Alvarez v. Pappas, No.
    104922, slip op. at 9-10 (April 17, 2008).
    Contrary to the majority, I do not believe that precedent governing
    implicit repeal of statutes by the General Assembly is relevant to the
    issue before us in this case. The challenge presented by those cases is
    how to reconcile legislative action taken by the General Assembly
    which appears to be inconsistent. That dilemma is not before us here.
    To the contrary, the changes to section 2–622(a)(2) of the Code which
    would result from applying the plain language of Public Act 90–579
    are entirely consistent with the prior amendments to the statute
    included in the Civil Justice Reform Amendments of 1995 (Pub. Act
    -31-
    89–7, eff. March 9, 1995). Rather than implicit repeal, this case
    involves explicit reenactment of a law under circumstances we
    specifically sanctioned.
    The fact that the “no previous dismissal” limitation was not
    underscored or italicized in Public Act 90–579 is of no consequence.
    Section 5 of the Statute on Statutes does state that
    “[i]n construing an amendatory Act printed in any volume
    of the session laws published after January 1, 1969, matter
    printed in italics shall be construed as new matter added by
    the amendatory Act, and matter shown crossed with a line
    shall be construed as matter deleted from the law by the
    amendatory Act.” 5 ILCS 70/5 (West 2004).
    As the appellate court correctly noted in Cargill v. Czelatdko, 353 Ill.
    App. 3d at 660-61, however, nothing in this provision makes the use
    of italics a prerequisite to the validity of new matter added by an
    amendment. The statute simply means that when items are italicized,
    such items shall be construed as adding new matter to the law.
    The Illinois House and Senate have enacted rules which go
    beyond this statutory requirement by specifying that in any bill
    amending a statute, “[a]ll new matter shall be underscored” and “[a]ll
    matter that is to be omitted or superseded shall be shown crossed with
    a line.” 95th Ill. Gen. Assem. House R. 37(e); Senate R. 5–1(e); 90th
    Ill. Gen. Assem. House R. 37(3); Senate R. 5–1(e). Compliance with
    these rules is, in the first instance, a matter for the General Assembly
    to judge. There is no evidence that the General Assembly found the
    bill which culminated in Public Act 90–579 (S.B. 120) to be
    problematic, and we can infer none. The Speaker of the House and
    the President of the Senate certified that the procedural requirements
    for passage of the bill had been satisfied. Under the enrolled-bill
    doctrine, the bill is therefore conclusively presumed to have met all
    procedural requirements for passage. Friends of the Parks v. Chicago
    Park District, 
    203 Ill. 2d 312
    , 329 (2003).
    Nor can we find any deficiency in Public Act 90–579 under this
    state’s constitution. Article IV, section 8(d), of the Illinois
    Constitution of 1970 (Ill. Const. 1970, art. IV, §8(d)) requires only
    that “[a] bill expressly amending a law shall set forth completely the
    sections amended.” That requirement was met here. There is no
    -32-
    dispute that the complete text of the law, as amended, was printed in
    the bill considered and adopted by the legislature.
    One may speculate as to what the General Assembly was thinking
    when it proceeded as it did with Public Act 90–579. It is well
    established, however, that we cannot ignore the plain language of a
    statute based on conjecture. Petersen v. Wallach, 
    198 Ill. 2d 439
    , 447
    (2002). Under the clear terms of the statute as ultimately enacted here,
    plaintiff’s refiled cause of action was fatally defective. The circuit
    court therefore acted properly when it granted defendants’ motion to
    dismiss.
    I do not see how we can countenance any other conclusion.
    Section 2–622(a)(2) of the Code (735 ILCS 5/2–622(a)(2) (West
    2004)), as amended by Public Act 90–579, was considered by 118
    members of the House and 59 members of the Senate and approved
    by the Governor. The majority’s opinion ultimately stands on the
    proposition that these branches of government and their constituent
    officers did not realize what they were doing when they enacted
    Public 90–579. Pundits may assume that the other branches of
    government are inattentive to their duties, but we, as the highest court
    of this state, may not.
    When we refuse to give effect to the plain language of a statute on
    the conjecture that its passage must have been accidental or
    inadvertent, we invite courts to disregard legislative enactments
    whose purposes they do not understand or whose wisdom they
    question. This is not only presumptuous, it puts courts in the position
    of super legislators, undermining basic principles of separation of
    powers.
    I close by observing that the events culminating in the death of
    plaintiff’s decedent took place in August of 2000. When plaintiff filed
    her complaint two years later, she failed to obtain the certificate of
    merit required by section 2–622 of the Code of Civil Procedure.
    When plaintiff attempted to refile her complaint two years after that,
    she still failed to obtain the requisite certificate.
    The reason for plaintiff’s ongoing difficulties in complying with
    the law is unknown. The delay may be justified. It may, on the other
    hand, simply be a function of some underlying problem with the
    merits of plaintiff’s cause of action. In any event, without further
    explanation, no claim can be made that application of the law, as
    -33-
    written, would be in any way unfair under the particular facts of this
    case.
    For the foregoing reasons, I respectfully dissent.
    CHIEF JUSTICE THOMAS and JUSTICE GARMAN join in this
    dissent.
    -34-