Washington Regional Medicorp v. Sylvia Burwell ( 2015 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued October 7, 2015            Decided December 29, 2015
    No. 14-5330
    WASHINGTON REGIONAL MEDICORP, DOING BUSINESS AS
    FAYETTEVILLE CITY HOSPITAL,
    APPELLANT
    v.
    SYLVIA MATHEWS BURWELL, SECRETARY, U.S. DEPARTMENT
    OF HEALTH AND HUMAN SERVICES,
    APPELLEE
    Appeal from the United States District Court
    for the District of Columbia
    (No. 1:13-cv-00622)
    Dan M. Peterson argued the cause and filed the briefs for
    appellant.
    Karen A. Schoen, Attorney, U.S. Department of Justice,
    argued the cause for appellee. With her on the brief were
    Benjamin C. Mizer, Principal Deputy Assistant Attorney
    General, Vincent H. Cohen, Jr., Acting U.S. Attorney
    General, Michael S. Raab, Attorney, William B. Schultz,
    General, Counsel, U.S. Department of Health and Human
    2
    Services, Janice L. Hoffman, Associate General Counsel,
    Susan Maxson Lyons, Deputy Associate General Counsel for
    Litigation, and Bridgette Kaiser, Attorney.       R. Craig
    Lawrence and Peter C. Pfaffenroth, Assistant U.S. Attorneys,
    entered appearances.
    Before: GARLAND, Chief Judge, GRIFFITH, Circuit Judge,
    and SENTELLE, Senior Circuit Judge.
    Opinion for the Court filed by Senior Circuit Judge
    SENTELLE.
    SENTELLE, Senior Circuit Judge: Appellant Fayetteville
    City Hospital is an inpatient psychiatric hospital that provides
    services to Medicare patients. Fayetteville challenges the
    method used by the Secretary of Health and Human Services
    (HHS) to calculate the hospital’s reimbursement for services
    it provided during 2003 and 2004—the two years after
    statutory caps on reimbursements for psychiatric hospitals
    expired but before psychiatric hospitals were moved to a
    prospective-payment system. Because we conclude that
    HHS’s interpretation was not only reasonable but also the best
    interpretation of the controlling statute, 42 U.S.C. § 1395ww,
    and regulation, 42 C.F.R. § 413.40, we affirm the decision of
    the district court denying Fayetteville’s motion for summary
    judgment and granting HHS’s cross-motion for summary
    judgment.
    I. BACKGROUND
    A. Statutory Background
    The Center for Medicare and Medicaid Services
    (CMS)—the component of HHS that administers the
    Medicare Program—reimburses hospitals for services
    3
    provided to Medicare patients. Initially, reimbursement was
    based on a hospital’s reasonable, actual costs. In 1982,
    concern regarding the rapidly rising costs of Medicare
    reimbursements prompted Congress to direct the Secretary of
    HHS to develop a legislative proposal for a prospective-
    payment system (PPS), whereby hospitals would receive a
    fixed amount for services rendered. See Tax Equity and
    Fiscal Responsibility Act (TEFRA) of 1982, Pub. L. No. 97-
    248, § 101(b)(3), 96 Stat. 324, 335; see S. Rep. No. 97-494,
    pt. 1, at 24 (1982) (“Hospital spending has been increasing at
    double-digit rates for over a decade and much faster than the
    rates of inflation in the economy as a whole. Hospital
    spending accounts for over 70 percent of Medicare program
    expenditures . . . .”). In the interim, Congress established
    limits on the annual rates of increase of a hospital’s
    reimbursable reasonable costs. See TEFRA, § 101(a)(1), 96
    Stat. at 331-35 (codified at 42 U.S.C. § 1395ww(b)).
    Pursuant to TEFRA, hospitals were reimbursed for their
    reasonable costs not exceeding a ceiling based on the
    hospital’s “target amount” for the relevant cost year. 42
    U.S.C. § 1395ww(b)(1)(A). For the first year that a hospital
    reported its costs under TEFRA, the hospital’s target amount
    was equal to “the allowable operating costs of inpatient
    hospital services . . . for such hospital for the preceding 12-
    month cost reporting period” plus an applicable percentage
    increase. 
    Id. § 1395ww(b)(3)(A)(i).
    For all subsequent fiscal
    years, the target amount was “the target amount for the
    preceding 12-month cost reporting period” plus an applicable
    percentage increase. 
    Id. § 1395ww(b)(3)(A)(ii).
    A PPS was put in place for most hospitals in 1983. See
    Social Security Amendments of 1983, Pub L. No. 98-21,
    § 601, 97 Stat. 65, 153-62 (codified as amended at 42 U.S.C.
    § 1395ww(d)). However, Congress chose to exclude certain
    types of hospitals, including psychiatric hospitals, from the
    4
    PPS. See Pub L. No. 98-21, § 601(e), 97 Stat. at 153
    (codified as amended at 42 U.S.C. § 1395ww(d)(1)(B)).
    Instead, HHS continued to reimburse these hospitals for their
    reasonable costs as long as those costs did not exceed the
    limits set by TEFRA. The calculation of TEFRA limits
    resulted in “significant variation” in the amount of
    reimbursement across PPS-exempt hospitals. H.R. Rep. No.
    105-149, at 1336 (1997). In an effort to reduce this variation,
    Congress imposed an additional cap on target amounts for
    PPS-exempt hospitals for fiscal years 1998-2002. See
    Balanced Budget Act (BBA) of 1997, Pub. L. No. 105-33,
    § 4414, 111 Stat. 251, 405 (codified as amended at 42 U.S.C.
    § 1395ww(b)(3)(H)). Under the BBA, target amounts for
    fiscal years 1998-2002 could not exceed the 75th percentile of
    target amounts for all hospitals in the same class for cost
    reporting periods ending during fiscal year 1996, adjusted as
    applicable for each year of the five year period. See 42
    U.S.C. § 1395ww(b)(3)(H).
    Finally, in 1999, Congress directed the Secretary to
    develop a PPS for psychiatric hospitals and move the
    hospitals to that system beginning on or after October 1, 2002.
    See Medicare, Medicaid, and SCHIP Balanced Budget
    Refinement Act (BBRA) of 1999, Pub. L. No. 106-113,
    Appendix F, § 124, 113 Stat. 1501, 1501A-332.
    B. Regulatory Background
    After Congress enacted TEFRA in 1982, the Secretary
    promulgated regulations to implement the act. These
    regulations mirrored the statutory provisions. Under the
    regulations, a hospital’s target amount for the first cost
    reporting period after TEFRA’s enactment was equal to “the
    hospital’s allowable net inpatient operating costs per case for
    the hospital’s base period increased by the update factor for
    5
    the subject period.” 42 C.F.R. § 405.463(c)(4)(i) (1982). For
    all subsequent cost reporting periods, a hospital’s target
    amount was equal to “the hospital’s target amount for the
    previous cost reporting period increased by the update factor
    for the subject cost reporting period.” 
    Id. § 405.463(c)(4)(ii);
    see also 47 Fed. Reg. 43,282, 43,292 (Sept. 30, 1982). In
    1986, HHS redesignated the relevant sections of 42 C.F.R.
    Part 405 into new Part 413. See 51 Fed. Reg. 34,790 (Sept.
    30, 1986).
    Following the passage of the BBA, the Secretary
    amended 42 C.F.R. Part 413 to reflect the new cap scheme.
    The Secretary made paragraphs (c)(4)(i) and (c)(4)(ii) subject
    to newly added paragraph (c)(4)(iii).           See 42 C.F.R.
    § 413.40(c)(4)(i)-(ii) (2003). Under paragraph (c)(4)(iii), the
    hospital’s target amount was to be “the lower of the amounts
    specified in paragraph (c)(4)(iii)(A) or (c)(4)(iii)(B) . . . .” 
    Id. § 413.40(c)(4)(iii).
    Paragraph (c)(4)(iii)(A) was a “hospital-
    specific target amount,” which equaled “the net allowable
    costs in a base period increased by the applicable update
    factors.” 
    Id. § 413.40(c)(4)(iii)(A)(I).
    Paragraph (c)(4)(iii)(B)
    outlined the BBA cap amount for each year 1998-2002. 
    Id. § 413.40(c)(4)(iii)(B).
    Finally, in 2005, in response to inquiries from provider
    hospitals, HHS amended § 413.40(c)(4)(iii) by adding an
    introductory clause specifying that the paragraph applied only
    “[f]or cost reporting periods beginning on or after October 1,
    1997 through September 30, 2002 . . . .” 70 Fed. Reg. 47,278,
    47,464-65, 47,487 (Aug. 12, 2005); see also 42 C.F.R.
    § 413.40(c)(4)(iii) (2005).
    6
    C. Factual and Procedural Background
    Although Congress directed HHS to move psychiatric
    hospitals to a PPS beginning in 2002, HHS was not able to
    begin the transition until January 1, 2005. See 69 Fed. Reg.
    66,922, 66,922-24 (Nov. 15, 2004) (explaining that
    developing a PPS for psychiatric hospitals was more complex
    and time consuming than for other types of hospitals). In the
    interim, the Secretary calculated psychiatric hospital target
    amounts under 42 U.S.C. § 1395ww(b)(3)(A)(ii) and 42
    C.F.R. § 413.40(c)(4)(ii). See 67 Fed. Reg. 49,982, 50,103
    (Aug. 1, 2002). Thus, the 2003 target amount was calculated
    by adding an applicable percentage increase to the 2002 target
    amount, which had been subject to the BBA caps, and by
    extension, the 2004 target amount was calculated by adding
    an applicable percentage increase to the 2003 target amount.
    
    Id. As a
    psychiatric hospital that provided inpatient services
    to Medicare patients in 2003 and 2004, Fayetteville’s
    reimbursement depended on how the Secretary calculated its
    target amounts for those years. Initially, a fiscal intermediary
    informed Fayetteville that it would be reimbursed based on its
    hospital-specific target amount under 42 C.F.R.
    § 413.40(c)(4)(iii)(A).       However, the intermediary
    subsequently revised its calculation and informed Fayetteville
    that its 2003 and 2004 target amounts would be calculated
    under 42 C.F.R. § 413.40(c)(4)(ii). The revised calculation
    resulted in Fayetteville receiving significantly reduced
    reimbursement for both years. Fayetteville appealed its
    reimbursements for 2003 and 2004 to the Provider
    Reimbursement Review Board (PRRB), arguing that the
    Secretary’s method for calculating the 2003 and 2004 target
    amounts improperly extended the BBA caps past their
    expiration. The PRRB found that it lacked the authority to
    7
    decide the appeal because it involved a challenge to the
    validity of HHS’s regulations, but certified the dispute for
    expedited judicial review in accordance with 42 U.S.C.
    § 1395oo(f)(1).
    Fayetteville subsequently filed this action in the U.S.
    District Court for the District of Columbia. Both Fayetteville
    and HHS filed motions for summary judgment with the
    district court. Fayetteville argued that HHS’s decision to
    calculate the hospital’s 2003 and 2004 target amounts under
    42 U.S.C. § 1395ww(b)(3)(A)(ii)—updating its 2002 target
    amount, which was subject to the BBA cap scheme, by an
    adjustment factor—impermissibly extended the BBA caps
    beyond 2002, contrary to the plain language of
    § 1395ww(b)(3)(H). Pl.’s Mot. Summ. J. at 12. According to
    Fayetteville, HHS should have calculated its 2003 and 2004
    target amounts under 42 C.F.R. § 413.40(c)(4)(iii) and
    reimbursed Fayetteville based on the hospital-specific target
    amount, which relies on the net allowable costs for the
    hospital’s base period, not the previous year’s target amount.
    
    Id. at 16.
    Fayetteville went on to contend that when the
    Secretary amended paragraph (c)(4)(iii) in 2005 by adding
    language that explicitly limited the provision’s application to
    October 1, 1997 through September 30, 2002, the Secretary
    made a substantive change to the regulatory text that
    amounted to a retroactive revision. 
    Id. at 26-29.
    HHS argued
    the Secretary’s amendment was not a retroactive rule because
    42 C.F.R. § 413.40(c)(4)(iii) had never applied beyond 2002,
    and, therefore, it was inapplicable when calculating the target
    amounts for 2003 and 2004. Def.’s Mot. Summ. J. at 14, 16.
    Instead, according to HHS, 42 U.S.C. § 1395ww(b)(3)(A)(ii)
    unambiguously required HHS to calculate Fayetteville’s 2003
    target amount by updating the hospital’s capped 2002 target
    amount and, by extension, to calculate the hospital’s 2004
    8
    target amount by updating the hospital’s 2003 target amount.
    
    Id. at 10-11.
    The district court denied Fayetteville’s motion for
    summary judgment and granted HHS’s cross-motion for
    summary judgment. See Wash. Reg’l Medicorp v. Burwell,
    
    72 F. Supp. 3d 159
    , 160 (D.D.C. 2014). Applying Chevron,
    the court found that the relevant provisions of the Medicare
    statute unambiguously required the Secretary to calculate the
    reimbursement as she had. 
    Id. at 164-65.
    In the alternative,
    the court found that, even if the statute was ambiguous, the
    Secretary’s method was a reasonable interpretation of the
    statute and its implementing regulations. 
    Id. at 165-67.
    The
    district court also found that the 2005 amendment to 42
    C.F.R. § 413.40(c)(4)(iii) was not an improper retroactive
    change because HHS did not alter its method of calculating
    target amounts when it made the amendment. 
    Id. at 167-68.
    II. DISCUSSION
    Fayetteville has timely appealed the district court’s
    decision granting HHS’s cross-motion for summary
    judgment. See 42 U.S.C. § 1395oo(f)(1) (“Providers shall . . .
    have the right to obtain judicial review of any action of the
    fiscal intermediary which involves a question of law or
    regulations relevant to the matters in controversy whenever
    the Board determines . . . that it is without authority to decide
    the question, by a civil action commenced within sixty days
    of the date on which notification of such determination is
    received.”). We review a district court’s grant of summary
    judgment de novo. Defs. of Wildlife v. Gutierrez, 
    532 F.3d 913
    , 918 (D.C. Cir. 2008). Here, the material facts are not in
    dispute. Therefore, we proceed to determine whether HHS
    was “entitled to [summary] judgment as a matter of law.”
    Fed. R. Civ. P. 56(a). Under de novo review, we “may affirm
    9
    on a different theory than that relied upon by the district
    court.” McCormick v. District of Columbia, 
    752 F.3d 980
    ,
    986 (D.C. Cir. 2014).
    A. The Statute
    In examining HHS’s interpretation of the statute, this
    Court applies the familiar two-pronged test set forth in
    Chevron U.S.A., Inc. v. Nat. Res. Def. Council, Inc., 
    467 U.S. 837
    (1984). “When a court reviews an agency’s construction
    of the statute which it administers, it is confronted with two
    questions.” 
    Id. at 842.
    First, the court must determine
    “whether Congress has directly spoken to the precise question
    at issue. If the intent of Congress is clear, that is the end of
    the matter; for the court, as well as the agency, must give
    effect to the unambiguously expressed intent of Congress.”
    
    Id. at 842–43.
    But “if the statute is silent or ambiguous with
    respect to the specific issue, the question for the court is
    whether the agency’s answer is based on a permissible
    construction of the statute.” 
    Id. at 843.
    We also note that
    “[t]he Supreme Court has made clear that courts must give
    heightened deference to [an agency’s] interpretation of a
    ‘complex and highly technical regulatory program’ such as
    Medicare.” Methodist Hosp. of Sacramento v. Shalala, 
    38 F.3d 1225
    , 1229 (D.C. Cir. 1994) (quoting Thomas Jefferson
    Univ. v. Shalala, 
    512 U.S. 504
    , 512 (1994)). We agree with
    HHS that Fayetteville’s 2003 and 2004 target amounts are
    properly calculated under 42 U.S.C. § 1395ww(b)(3)(A)(ii).
    Insofar as there is any ambiguity in the statute, we would
    uphold HHS’s interpretation with or without Chevron
    deference because HHS’s interpretation is not only reasonable
    but also the best interpretation of the statute.
    When Congress passed the BBRA, it provided that the
    PPS for psychiatric hospitals would be implemented
    10
    immediately after the expiration of the BBA caps. See 42
    U.S.C. § 1395ww(b)(3)(H)(i) (imposing caps for fiscal years
    1998-2002); BBRA, Pub. L. No. 106-113, Appendix F,
    § 124(c), 113 Stat. at 1501A-332 (directing the Secretary to
    move psychiatric hospitals to a PPS “beginning on or after
    October 1, 2002”). Congress did not anticipate the gap
    between the two systems of reimbursement and, therefore, did
    not directly speak to how HHS should calculate target
    amounts during that gap. Thus, HHS was left to interpret
    § 1395ww with little direction. We agree with HHS that,
    under the best interpretation of the statute, Fayetteville’s 2003
    target amount is properly calculated under 42 U.S.C.
    § 1395ww(b)(3)(A)(ii) by adding an applicable percentage
    increase to the hospital’s 2002 target amount, even if that
    target amount was capped by § 1395ww(b)(3)(H). By
    extension, we also agree that Fayetteville’s 2004 target
    amount was properly calculated by adding an applicable
    percentage increase to the 2003 target amount.
    Two provisions of § 1395ww are relevant for calculating
    Fayetteville’s 2003 target amount: paragraph (b)(3)(A) and
    paragraph (b)(3)(H). Paragraph (b)(3)(A) sets out how to
    calculate a psychiatric hospital’s target amount for its first
    cost reporting period, see 42 U.S.C. § 1395ww(b)(3)(A)(i),
    and for all subsequent cost reporting periods, see 
    id. § 1395ww(b)(3)(A)(ii).
    Only the latter method applies here
    because 2003 was not Fayetteville’s first cost reporting
    period. Under § 1395ww(b)(3)(A)(ii), a psychiatric hospital’s
    target amount equals “the target amount for the preceding 12-
    month cost reporting period, increased by the applicable
    percentage increase . . . .” For 2003, the preceding 12-month
    cost reporting period is 2002. Pursuant to § 1395ww(b)(3)(H),
    the target amount for 2002 “may not exceed” the “75th
    percentile of the target amounts for such hospitals within such
    class for cost reporting periods during fiscal year 1996,” as
    11
    updated by “a factor equal to the market basket percentage
    increase.” 
    Id. § 1395ww(b)(3)(H)(i),
    (ii)(I), (III). The most
    straightforward reading of these provisions instructs HHS to
    use the capped 2002 target amount to calculate the 2003 target
    amount under § 1395ww(b)(3)(A)(ii).
    Fayetteville argues that this method of calculating a
    psychiatric hospital’s 2003 and 2004 target amounts is
    contrary to the statute because it effectively extends the BBA
    caps beyond 2002, and Congress plainly did not intend for the
    Secretary to take a cap that was explicitly limited to five years
    and extend it to cover seven years. We disagree.
    A BBA cap was not imposed on the 2003 or 2004 target
    amount. Only the 2002 target amount was capped. As the
    district court noted, “[t]here is no doubt that reverting to the
    pre-BBA method of calculating reimbursement perpetuated
    the effect of the BBA caps.” Wash. Reg’l Medicorp, 72 F.
    Supp. 3d at 164. But, as other circuits have noted, this “echo
    effect” is not contrary to the statute. See Mich. Dep’t of Cmty.
    Health v. Sec’y of Health & Human Servs., 496 F. App’x 526,
    536 (6th Cir. 2012); Ancora Psychiatric Hosp. v. Sec’y of the
    U.S. Dep’t of Health & Human Servs., 417 F. App’x 171,
    175-76 (3d Cir. 2011). That a cap imposed on one cost
    reporting period might affect the subsequent cost reporting
    period is unsurprising given that TEFRA, which was neither
    repealed nor replaced by the BBA or the BBRA, established a
    system in which a psychiatric hospital’s target amount could
    only increase by a certain percentage each cost reporting
    period. See 42 U.S.C. § 1395ww(b)(3)(A); see also Ancora
    Psychiatric Hosp., 417 F. App’x at 176.
    Moreover, using § 1395ww(b)(3)(A)(ii) to calculate the
    target amounts for 2003 and 2004 is consistent with
    Congress’s “progressive effort” to move hospitals from an
    12
    actual cost reimbursement system to a system “based on
    objective patient characteristics and consistent national
    standards, and to rein in disproportionately expensive
    treatment provided by certain hospitals.” Mich. Dep’t of
    Cmty. Health, 496 F. App’x at 534; see also Univ. of Tex.
    M.D. Anderson Cancer Ctr. v. Sebelius, 
    650 F.3d 685
    , 687
    (D.C. Cir. 2011) (“Congress has repeatedly attempted to slow
    the increase in Medicare costs for hospitals’ inpatient
    services.”). There is no indication that Congress intended to
    reverse this trend and have HHS go back to calculating target
    amounts by simply increasing the hospital’s reasonable, actual
    costs from the base year.
    We conclude that the best interpretation of 42 U.S.C.
    § 1395ww, which is the interpretation adopted by HHS,
    provides for the calculation of Fayetteville’s 2003 and 2004
    target amounts using § 1395ww(b)(3)(A)(ii).
    B. The Regulation
    According to Fayetteville, calculating the 2003 and 2004
    target amounts based on the 2002 capped target amount also
    ran afoul of the Secretary’s own regulations. Fayetteville
    argues that 42 C.F.R. § 413.40(c)(4)(iii) was still in effect
    during 2003 and 2004 and required HHS to reimburse
    Fayetteville for both years using the hospital-specific target
    amount under subparagraph (A). Nothing in § 413.40
    compels this Court to adopt Fayetteville’s reading. With or
    without deference, we conclude that HHS’s interpretation is
    the better one, not least of all because it is consistent with the
    best reading of the statute. See Auer v. Robbins, 
    519 U.S. 452
    , 461 (1997).
    As relevant here, the regulation states that, “[s]ubject to
    the provisions of paragraph (c)(4)(iii) of this section, for []
    13
    cost reporting periods [after the initial period], the target
    amount equals the hospital’s target amount for the previous
    cost reporting period increased by the update factor for the
    subject cost reporting period . . . .”             42 C.F.R.
    §§ 413.40(c)(4)(ii). We agree with HHS that paragraph
    (c)(4)(iii) was added to implement the BBA caps and is best
    read as only applying from 1998-2002, when the BBA caps
    were in effect. See 62 Fed. Reg. 45,966, 45,969, 46,018-19
    (Aug. 29, 1997) (rule is implementing, among other
    provisions of the BBA, the caps on target amounts for
    psychiatric hospitals by amending § 413.40(c)(4)); 63 Fed.
    Reg. 26,318, 26,344, 26,358 (May 12, 1998) (opening
    discussion of modifications to § 413.40(c) with an
    explanation of the BBA caps). Therefore, the “subject to”
    clause of paragraph (c)(4)(ii) had no effect in 2003 and 2004,
    and the target amounts for those years are properly calculated
    by updating the previous year’s target amount. 1
    The conclusion that paragraph (c)(4)(iii) does not apply
    after 2002 is consistent with the fact that the regulatory
    preambles cited by both parties, which discuss how target
    amounts for 2003 and subsequent cost years would be
    calculated under § 413.40, refer only to paragraph (c)(4)(ii)
    and do not mention (c)(4)(iii) at all. See 67 Fed. Reg. 49,982,
    50,103-04 (Aug. 1, 2002) (“In accordance with existing
    §§ 413.40(c)(4)(ii) . . . [psychiatric hospitals will] continue to
    be paid on a reasonable cost basis, and payments are based on
    their Medicare inpatient operating costs, not to exceed the
    ceiling. The ceiling will be computed using the hospital’s . . .
    1
    We recognize that the 5th Circuit has reached the opposite
    conclusion. See Hardy Wilson Mem’l Hosp. v. Sebelius, 
    616 F.3d 449
    , 457-61 (5th Cir. 2010) (42 C.F.R. § 413.40 unambiguously
    required HHS to calculate target amounts in the gap period under
    paragraph (c)(4)(iii)(A) because only subparagraph (B) no longer
    applied after 2002).
    14
    target amount from the previous cost reporting period updated
    by the [applicable] rate-of-increase . . . .”); 67 Fed. Reg.
    31,404, 31,491 (May 9, 2002) (same).
    Fayetteville further contends that using § 413.40(c)(4)(ii)
    to calculate the 2003 and 2004 target amounts is inconsistent
    with the general and somewhat ambiguous definition of target
    amount provided by § 413.40(a)(3): “Target amount is the
    per discharge (case) limitation, derived from the hospital’s
    allowable net Medicare inpatient operating costs in the
    hospital’s base year, and updated for each subsequent hospital
    cost reporting period by the appropriate annual rate-of-
    increase percentage.” 42 C.F.R. § 413.40(a)(3). According to
    Fayetteville, because HHS’s target amount for 2003 was
    based on the capped 2002 target amount, the target amounts
    for both 2003 and 2004 are not “derived from” the hospital’s
    reasonable operating costs. Fayetteville’s position appears to
    be that the regulatory definition requires a hospital’s target
    amount to be its reasonable operating costs from its base year
    plus an update factor. But, saying that the target amount is
    “derived from” the hospital’s base year reasonable operating
    costs is not the same as saying that the target amount “is” the
    hospital’s base year reasonable operating costs. Even the
    target amounts for a psychiatric hospital during the BBA
    capped years were derived from the hospital’s reasonable
    operating costs in the base year.             See 42 U.S.C.
    § 1395ww(b)(3)(A), (H) (target amount equals “allowable
    operating costs” plus applicable increases unless that sum
    exceeds the 75th percentile cap for the cost reporting year); 42
    C.F.R. § 413.40(c)(4)(iii) (target amount equals “net
    allowable costs in a base period” plus update factors unless
    that sum exceeds the 75th percentile cap for the cost reporting
    year). The cap simply meant that the hospital’s Medicare
    reimbursements would not necessarily cover all the
    reasonable operating costs the hospital incurred. Thus, there
    15
    is no conflict between the definition in § 413.40(a)(3) and the
    method of calculation employed by HHS.
    Finally, because § 413.40(c)(4)(iii), as it existed in 2003
    and 2004, is best read as applying only from 1998-2002 and
    HHS has consistently adhered to this interpretation, we
    conclude that the 2005 amendment, which simply clarifies
    this temporal limit, was not a substantive change to the rule
    and therefore does not present a retroactivity problem. See
    Ne. Hosp. Corp. v. Sebelius, 
    657 F.3d 1
    , 13-14 (D.C. Cir.
    2011) (“To determine whether a rule is impermissibly
    retroactive, we first look to see whether it effects a
    substantive change from the agency’s prior regulation or
    practice.” (citation and internal quotation marks omitted)).
    III. CONCLUSION
    For the reasons set forth above, the district court’s
    decision denying Fayetteville’s motion for summary
    judgement and granting HHS’s cross-motion for summary
    judgment is affirmed.
    So ordered.