WSI v. Sandberg , 2021 ND 39 ( 2021 )


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  •                                                                              FILED
    IN THE OFFICE OF THE
    CLERK OF SUPREME COURT
    MARCH 3, 2021
    STATE OF NORTH DAKOTA
    IN THE SUPREME COURT
    STATE OF NORTH DAKOTA
    
    2021 ND 39
    State of North Dakota, by and through
    Workforce Safety and Insurance,                                    Appellant
    v.
    John Sandberg                                                        Appellee
    and
    Park Construction,                                               Respondent
    No. 20200174
    Appeal from the District Court of Ramsey County, Northeast Judicial District,
    the Honorable Donovan J. Foughty, Judge.
    AFFIRMED IN PART AND REMANDED.
    Opinion of the Court by McEvers, Justice.
    Sean F. Marrin, Special Assistant Attorney General, Grand Forks, ND, for
    appellant.
    Dean J. Haas, Bismarck, ND, for appellee.
    WSI v. Sandberg
    No. 20200174
    McEvers, Justice.
    [¶1] Workforce Safety and Insurance (“WSI”) appeals from a district court
    judgment affirming an ALJ’s revised order on remand, entered after our
    decision in State by & through Workforce Safety & Ins. v. Sandberg, 
    2019 ND 198
    , ¶ 26, 
    931 N.W.2d 488
     (“Sandberg I”). The ALJ’s revised order made
    additional findings of fact and conclusions of law, and again found John
    Sandberg had sustained a compensable injury and is entitled to benefits.
    Under our deferential standard of review, we affirm in part; however, in light
    of the ALJ’s revised order, we remand the case to WSI for further proceedings
    on whether benefits must be awarded on an aggravation basis and the proper
    calculation of those benefits under N.D.C.C. § 65-05-15.
    I
    [¶2] Our decision in Sandberg I, 
    2019 ND 198
    , ¶¶ 2-10, sets forth the relevant
    facts and prior proceedings in this case, which we repeat here only to the extent
    necessary to decide this appeal after remand.
    [¶3] In July 2016, Sandberg filed a claim with WSI for a “[c]ervical (neck)”
    injury, identifying his last day of work with Park Construction on September
    28, 2015, as the injury date, and describing how his injury occurred as follows:
    unloading and placing rock with excavator with continuous
    bouncing, slimming [sic], due to ruff [sic] terrain, with repetitive
    movement, arms and head continuous movement over long periods
    of time, arms at my side, hands running joysticks, head moving
    side to side, up and down, resulting in extreme neck, back and
    shoulder pain, with numbing in both arms and hands.
    Sandberg I, 
    2019 ND 198
    , ¶ 6. In August 2016, WSI issued a notice of decision
    denying benefits for his claimed injury to his cervical (neck) and thoracic
    (middle back) spine that “occurred while working as a heavy equipment
    operator over time.” Sandberg requested reconsideration.
    1
    [¶4] In its September 2016 order, WSI denied Sandberg’s claim and his
    request for reconsideration. WSI determined “that his upper and middle back
    issues were a preexisting condition of degenerative disc disease and that his
    employment acted only as a trigger to produce symptoms in the preexisting
    condition and did not cause or increase the risk of his cervical degenerative
    disc disease.” Sandberg I, 
    2019 ND 198
    , ¶ 7. “WSI determined Sandberg’s work
    activities did not substantially accelerate the progression or substantially
    worsen his preexisting condition.” 
    Id.
     Sandberg requested an administrative
    hearing.
    [¶5] In November 2017, a hearing was held before an independent ALJ. As
    we previously summarized:
    At the hearing, Sandberg relied on testimony and a letter
    from Dr. [Michael] Remmick and a letter from another treating
    physician, Dr. Steven Schoneberg, to support his claim that his
    repetitive work activities substantially accelerated the progression
    or substantially worsened the severity of his preexisting cervical
    and thoracic condition. Dr. Remmick testified there was more than
    just pain from a preexisting degenerative disc disease and there
    was an “accumulative trauma type effect” to Sandberg’s soft
    tissues, supportive structures, and joint structures from his
    repetitive activities. Dr. Remmick testified there was a progression
    of significant physiological change in x-ray imaging from 2003
    through the latest imaging. Dr. Schoneberg opined that Sandberg’s
    work could have substantially contributed to the development and
    gradual worsening of his condition and likely contributed to his
    chronic neck and mid-back pain. WSI’s medical consultant, Dr.
    Gregory Peterson, testified there was no significant clinical
    evidence demonstrating that Sandberg’s work activities
    accelerated changes in his condition or that his condition was
    caused by his work activities. Dr. Peterson opined that Sandberg’s
    work acted as a trigger to produce symptoms in his preexisting
    condition but did not cause or substantially accelerate the
    progression of his degenerative disc disease.
    Sandberg I, 
    2019 ND 198
    , ¶ 9.
    2
    [¶6] After the hearing, the ALJ issued a decision finding Dr. Peterson’s
    opinion that Sandberg’s work did not cause or substantially accelerate his
    condition was in conflict with Dr. Remmick’s and Dr. Schoneberg’s opinions
    and finding that Dr. Peterson’s opinion was more persuasive. Sandberg I, 
    2019 ND 198
    , ¶ 10. The ALJ determined Sandberg’s employment “did not cause or
    substantially accelerate the progression of his degenerative disc disease.” 
    Id.
    However, the ALJ also found Sandberg’s employment “substantially increased
    the severity of his pain and did not merely trigger symptoms but substantially
    worsened the severity of his degenerative disc disease.” The ALJ decided
    Sandberg had met his burden of proving he sustained a compensable injury.
    The district court affirmed the ALJ’s decision.
    [¶7] Because the ALJ had made conflicting and insufficient findings to
    support the finding that Sandberg’s claim was compensable, we were “unable
    to reconcile the ALJ’s decision with the statutory requirements for medical
    evidence supported by objective medical findings for a compensable injury in
    N.D.C.C. § 65-01-02(10).” Sandberg I, 
    2019 ND 198
    , ¶¶ 25-26. We reversed and
    remanded to the ALJ for findings under the statutory requirements to decide
    whether Sandberg had sustained a compensable injury. Id. at ¶ 26.
    [¶8] On remand, the ALJ allowed the parties to submit further briefing and
    thereafter entered the ALJ’s “Revised Findings of Fact, Conclusions of Law,
    and Order on Remand.” In the revised order, the ALJ made additional findings
    and again held that Sandberg met his burden of proving by a preponderance
    of the evidence that he had sustained a compensable injury and that
    Sandberg’s repetitive work activities did not merely trigger symptoms in a pre-
    existing condition, but rather “substantially contributed” to the development
    of “soft tissue injuries” in the cervical and thoracic areas of his back. WSI
    appealed to the district court, which affirmed the ALJ’s order on remand.
    II
    [¶9] Courts exercise limited appellate review of a final order by an
    administrative agency under the Administrative Agencies Practice Act,
    N.D.C.C. ch. 28-32. Sandberg I, 
    2019 ND 198
    , ¶ 11; see also Davenport v.
    Workforce Safety & Ins. Fund, 
    2013 ND 118
    , ¶ 10, 
    833 N.W.2d 500
    ; Mickelson
    3
    N.D. Workforce Safety & Ins., 
    2012 ND 164
    , ¶ 7, 
    820 N.W.2d 333
    . Under
    N.D.C.C. §§ 28-32-46 and 28-32-49, the district court and this Court must
    affirm an administrative agency’s order unless:
    1. The order is not in accordance with the law.
    2. The order is in violation of the constitutional rights of the
    appellant.
    3. The provisions of this chapter have not been complied with in
    the proceedings before the agency.
    4. The rules or procedure of the agency have not afforded the
    appellant a fair hearing.
    5. The findings of fact made by the agency are not supported by a
    preponderance of the evidence.
    6. The conclusions of law and order of the agency are not supported
    by its findings of fact.
    7. The findings of fact made by the agency do not sufficiently
    address the evidence presented to the agency by the appellant.
    8. The conclusions of law and order of the agency do not sufficiently
    explain the agency’s rationale for not adopting any contrary
    recommendations by a hearing officer or an administrative law
    judge.
    N.D.C.C. § 28-32-46.
    [¶10] In reviewing an agency’s factual findings, a court may not make
    independent findings of fact or substitute its judgment for the agency’s
    findings; rather, the court must decide only whether a reasoning mind
    reasonably could have determined the findings were proven by the weight of
    the evidence from the entire record. Sandberg I, 
    2019 ND 198
    , ¶ 12 (citing
    Davenport, 
    2013 ND 118
    , ¶ 11). Similar deference is given to the ALJ’s factual
    findings when reviewing an appeal from an independent ALJ’s final order
    “because the ALJ had the opportunity to observe witnesses and the
    responsibility to assess the credibility of witnesses and resolve conflicts in the
    evidence.” 
    Id.
     An independent ALJ’s legal conclusions, however, are fully
    reviewable on appeal, including interpretation of a statute. 
    Id.
    [¶11] Section 28-32-39(1), N.D.C.C., provides that an administrative agency
    “shall make and state concisely and explicitly its findings of fact.” An agency’s
    4
    findings are adequate when they enable a reviewing court to understand the
    agency’s decision. Sandberg I, 
    2019 ND 198
    , ¶ 12 (citing Pleinis v. N.D. Workers
    Comp. Bureau, 
    472 N.W.2d 459
    , 462 (N.D. 1991); F.O.E. Aerie 2337 v. N.D.
    Workers Comp. Bureau, 
    464 N.W.2d 197
    , 199-200 (N.D. 1990)).
    III
    [¶12] At the time relevant to this case, N.D.C.C. § 65-01-02(10) defined a
    “compensable injury” for purposes of workers’ compensation law, stating in
    relevant part:
    “Compensable injury” means an injury by accident arising out of
    and in the course of hazardous employment which must be
    established by medical evidence supported by objective medical
    findings.
    ....
    b. The term does not include:
    ....
    (7) Injuries attributable to a pre-existing injury,
    disease, or other condition, including when the
    employment acts as a trigger to produce symptoms in
    the pre-existing injury, disease, or other condition
    unless the employment substantially accelerates its
    progression or substantially worsens its severity. Pain
    is a symptom and may be considered in determining
    whether there is a substantial acceleration or
    substantial worsening of a pre-existing injury, disease,
    or other condition, but pain alone is not a substantial
    acceleration or a substantial worsening.
    (Emphasis added.)
    [¶13] Claimants have the burden to prove by a preponderance of evidence that
    they have sustained a compensable injury and are entitled to workers’
    compensation benefits. N.D.C.C. § 65-01-11; Bergum v. N.D. Workforce Safety
    & Ins., 
    2009 ND 52
    , ¶ 11, 
    764 N.W.2d 178
    . A claimant must prove that the
    condition for which benefits are sought is “causally related” to a work injury.
    Bergum, at ¶ 11. To establish a “causal connection,” a claimant must
    demonstrate the claimant’s employment was a substantial contributing factor
    5
    to the injury and need not show employment was the sole cause of the injury.
    Bruder v. N.D. Workforce Safety & Ins. Fund, 
    2009 ND 23
    , ¶ 8, 
    761 N.W.2d 588
    .
    [¶14] In Sandberg I, we explained that the issue on appeal involved “the
    continuing efforts to apply the statutory delineation between work activities
    that merely trigger pain symptoms in a preexisting injury, disease, or other
    condition and are not compensable and work activities that substantially
    accelerate the progression or substantially worsen the severity of a preexisting
    injury, disease, or other condition and are compensable.” 
    2019 ND 198
    , ¶ 16
    (citing Parsons v. Workforce Safety & Ins. Fund, 
    2013 ND 235
    , ¶¶ 14-22, 
    841 N.W.2d 404
    ; Davenport, 
    2013 ND 118
    , ¶¶ 20-29; Mickelson, 
    2012 ND 164
    , ¶¶
    9-23; Johnson v. N.D. Workforce Safety & Ins. Fund, 
    2012 ND 87
    , ¶¶ 7-10, 
    816 N.W.2d 74
    ; Curran v. N.D. Workforce Safety & Ins., 
    2010 ND 227
    , ¶¶ 18-28,
    
    791 N.W.2d 622
    ). We specifically discussed our decisions in Davenport and
    Mickelson, and the 2013 amendment to N.D.C.C. § 65-01-02(10)(b)(7),
    concluding:
    The plain language of the 2013 amendment to N.D.C.C. § 65-
    01-02(10)(b)(7) is consistent with Mickelson and Davenport, and
    clarifies that pain is a symptom of a preexisting injury, disease, or
    other condition and may be considered in determining whether
    there is a substantial acceleration of the progression or a
    substantial worsening of the severity of the condition, but pain
    alone is not a substantial acceleration or a substantial worsening.
    Moreover, the 2013 amendment did not alter the requirement in
    N.D.C.C. § 65-01-02(10), that a compensable injury must be
    established by medical evidence supported by objective medical
    findings.
    Sandberg I, at ¶ 23.
    [¶15] “[O]bjective medical findings may include a physician’s medical opinion
    based on an examination, a patient’s medical history, and the physician’s
    education and experience.” Sandberg I, 
    2019 ND 198
    , ¶ 23 (citing Swenson v.
    Workforce Safety & Ins. Fund, 
    2007 ND 149
    , ¶ 25, 
    738 N.W.2d 892
    ).
    6
    IV
    [¶16] WSI argues that the ALJ again erred in reversing WSI’s September 2016
    order denying Sandberg’s claim, misapplied the law on remand, and exceeded
    the scope of Sandberg I’s mandate in determining that Sandberg sustained a
    compensable injury.
    A
    [¶17] WSI argues on appeal that the ALJ essentially manufactured a medical
    condition by finding Sandberg had sustained a “soft tissue injury” and the
    issues to be decided on remand do not reference or mention a “soft tissue
    injury.” WSI argues the ALJ created new issues on remand to find a
    compensable injury, defeating the purpose of specifying issues. WSI contends
    the ALJ disregarded this Court’s prior opinion by improperly relying on
    Sandberg’s subjective pain complaints for a second time to manufacture an
    allegedly compensable soft tissue injury.
    [¶18] In Sandberg I, 
    2019 ND 198
    , ¶¶ 25-26, this Court concluded that the ALJ
    had made conflicting and insufficient findings of fact to support the ALJ’s
    finding that Sandberg’s claim was compensable and, as a result, we were
    “unable to reconcile the ALJ’s decision with the statutory requirements for
    medical evidence supported by objective medical findings for a compensable
    injury in N.D.C.C. § 65-01-02(10).” We reversed and remanded to the ALJ for
    findings under those statutory requirements. Id. at ¶ 26.
    [¶19] Generally, “[a]n appellate reversal vacates the judgment so that the
    parties are placed in the same position as before entry of the judgment.”
    Morales v. State, 
    2020 ND 117
    , ¶ 4, 
    943 N.W.2d 761
     (quoting Mahoney v.
    Mahoney, 
    1997 ND 149
    , ¶ 36, 
    567 N.W.2d 206
    ); see also Bergstrom v.
    Bergstrom, 
    320 N.W.2d 119
    , 122 (N.D. 1982) (“Dependent orders and
    proceedings fall with the reversal of the judgment.”). We have discussed proper
    application of the law-of-the-case doctrine and mandate rule when a case
    involves a second appeal:
    [T]he law of the case is defined as the principle that if an appellate
    court has passed on a legal question and remanded the cause to
    7
    the court below for further proceedings, the legal question thus
    determined by the appellate court will not be differently
    determined on a subsequent appeal in the same case where the
    facts remain the same. In other words, [t]he law of the case
    doctrine applies when an appellate court has decided a legal
    question and remanded to the district court for further
    proceedings, and [a] party cannot on a second appeal relitigate
    issues which were resolved by the Court in the first appeal or
    which would have been resolved had they been properly presented
    in the first appeal. The mandate rule, a more specific application
    of law of the case, requires the trial court to follow pronouncements
    of an appellate court on legal issues in subsequent proceedings of
    the case and to carry the [appellate court’s] mandate into effect
    according to its terms. . . . and we retain the authority to decide
    whether the district court scrupulously and fully carried out our
    mandate’s terms.
    Carlson v. Workforce Safety & Ins., 
    2012 ND 203
    , ¶ 16, 
    821 N.W.2d 760
    (citations and quotation marks omitted); see also Glass v. Glass, 
    2018 ND 14
    ,
    ¶ 5, 
    906 N.W.2d 81
     (“The law of the case doctrine is based upon the theory of
    res judicata, and is grounded on judicial economy to prevent piecemeal and
    unnecessary appeals.” (citation omitted)). For example, in Carlson, at ¶¶ 17-
    19, this Court held that WSI’s exercise of its continuing jurisdiction on remand
    was beyond the scope of our remand in the first appeal. We had decided a legal
    question in the first appeal, holding that the employer failed to file a timely
    and sufficient request for reconsideration under the relevant statute and that
    WSI’s notice of decision regarding the claimant’s employment status was final
    and could not be reheard or appealed. Id. at ¶ 17. We remanded only for further
    proceedings on calculation of the claimant’s average weekly wage. Id. at ¶ 18.
    On remand, however, WSI exercised its continuing jurisdiction and held
    further proceedings re-adjudicating the claimant’s employment status that
    “were in effect a ‘do-over’ of the proceedings leading” to the first appeal. Id. at
    ¶ 18. We therefore held that, under the law-of-the-case doctrine, WSI was
    precluded from using its continuing jurisdiction to re-adjudicate the claimant’s
    employment status. Id. at ¶ 19. The present case is unlike the proceedings in
    Carlson.
    8
    [¶20] Here, in the ALJ’s revised order, the ALJ on remand did not go beyond
    the scope of our mandate in Sandberg I after this Court reversed and
    remanded. In Sandberg I, 
    2019 ND 198
    , ¶ 26, rather than deciding a legal
    question, we merely held that we were unable to reconcile the ALJ’s prior
    decision “with the statutory requirements for medical evidence supported by
    objective medical findings for a compensable injury in N.D.C.C. § 65-01-
    02(10).” We reversed the judgment and remanded the case to the ALJ for
    findings under those statutory requirements. Our decision only required the
    ALJ to determine and make consistent, sufficient findings as to whether
    Sandberg had sustained a “compensable injury” under the statute. On remand
    the ALJ entered the revised order, which included additional specific findings
    on the medical evidence and determined Sandberg sustained a compensable
    injury. We conclude the issues decided by the ALJ on remand were necessarily
    included in the issues we sent back and, therefore, conclude the ALJ did not go
    beyond the terms of our mandate.
    B
    [¶21] In the ALJ’s revised order, the ALJ again identified the same issues for
    resolution as whether Sandberg proved by a preponderance of evidence that
    his repetitive work activities: “(1) are a substantial contributing factor to his
    cervical and thoracic degenerative conditions, or (2) substantially accelerated
    or worsened his preexisting cervical spine and thoracic spine conditions.” The
    ALJ once again found Dr. Peterson’s opinion was persuasive in that the greater
    weight of the evidence did not establish that Sandberg’s work caused or
    substantially accelerated the progression of his degenerative disc disease.
    [¶22] The ALJ, however, made additional findings of fact on remand,
    specifically determining that a preponderance of the evidence had also
    established that Sandberg’s work activities “substantially contributed” to his
    development of “soft tissue injuries” and that his “soft tissue injuries” were not
    a pre-existing condition. The ALJ specifically found:
    36. A preponderance of the evidence does establish that
    the stresses placed upon Mr. Sandberg due to the jarring motion
    that he assumed and postured that he had to adopt while working
    9
    substantially contributed to his development of soft tissue injuries
    that contributed to his debilitating pain. This was the opinion of
    Dr. Remmick, which was credible, supported by the opinion of Dr.
    Schoneberg, and was not refuted by Dr. Peterson, who focused his
    testimony on Mr. Sandberg’s degenerative disc condition, not upon
    soft tissue injury. To the extent that Dr. Peterson addressed soft
    tissue injury in a very general sense, his testimony was in accord
    with Dr. Remmick’s opinion. Although he vaguely purported to
    disagree with Dr. Remmick’s opinion on Mr. Sandberg’s soft tissue
    injuries, Dr. Peterson did not elaborate on why he disagreed, and
    admitted “. . . mechanical stresses can have a physical effect, I
    think that on—you know, that one is easy to agree with.” Tr. 117
    37. If it could be said that there is a medical disagreement
    between Dr. Peterson and Dr. Remmick regarding soft tissue
    injury, the factors of N.D.C.C. § 65-05-08.3 favor the opinion of Dr.
    Remmick. Having had the benefit of hearing both testify, it is clear
    that Dr. Peterson focused on the visual evidence of Mr. Sandberg’s
    degenerative disc disease almost exclusively, while Dr. Remmick
    focused on the condition of Mr. Sandberg’s back as a whole. Dr.
    Remmick’s opinion is persuasive, and its value is not diminished
    by the fact that he did not discuss in detail the issue of causation
    in his treatment records.
    38. Mr. Sandberg’s soft tissue injuries were not a pre-
    existing condition.
    39. A preponderance of the evidence does not establish
    that Mr. Sandberg’s herniated disc is a source of his pain.
    40. A preponderance of the evidence does establish that
    operating the track hoe moving rip rap was a substantial
    contributing factor in the development of Mr. Sandberg’s
    debilitating back coondition [sic]. Prior to 2015, the pain lessened
    after rest during seasonal layoff and chiropractic treatment.
    Following, and as a result of a period of pushing rip rap year round,
    in 2015 Mr. Sandberg’s work induced pain became worse and no
    longer responded favorably to rest and treatment.
    41. This case presents a trap in which the unwary,
    including this ALJ, can easily fall. Because it is true that a picture
    is worth a thousand words, when looking for objective medical
    evidence of a condition, we favor visual representations such as
    provided by x-rays and MRIs. Here, there was visual medical
    evidence of degenerative disc disease and herniation. Once that
    was found, it became the focal point, and the inquiry became
    10
    whether the visual evidence demonstrated that Mr. Sandberg’s
    degenerative disc disease had worsened over time. In the
    discussion, especially by Dr. Peterson, degenerative disc disease
    was treated as synonymous with Mr. Sandberg’s back condition.
    The issue should not have been viewed so narrowly. The question
    is not merely whether the degree to and rate at which Mr.
    Sandberg’s disc degeneration had progressed was accelerated by
    his work. His condition involves the pain and loss of function in his
    cervical and thoracic areas, not merely what appears on x-rays and
    MRIs. As Dr. Peterson testified, there is little correlation between
    the degree of disc degeneration as reflected visually in
    radiographic results and the pain that it produces in any
    particular patient.
    42. A preponderance of the evidence establishes that Mr.
    Sandberg’s work did not merely trigger symptoms of a pre-existing
    condition, but in a real, true, important, and essential way made
    Mr. Sandberg’s back condition more unfavorable, difficult,
    unpleasant, and painful. Mr. Sandberg provided credible
    testimony that the jarring and twisting that he endured daily
    resulted in the pain and loss of function that caused him to seek
    chiropractic and medical treatment. That treatment provided
    relief for a time, and he continued to engage in the same work, only
    stopping when he took what would have been a seasonal layoff
    anyway when that treatment no longer provided the relief that it
    once had.
    43. A preponderance of the evidence establishes that Mr.
    Sandberg’s employment substantially contributed to the
    debilitating effects of his cervical and thoracic spine condition,
    which is a combination of degenerative disc disease and soft tissue
    injuries caused by his work conditions, and has caused him to seek
    considerable medical treatment and ultimately prevented him
    from performing his lifelong occupation.
    (Emphasis added.)
    [¶23] The ALJ concluded that Sandberg met his burden to prove he sustained
    a compensable injury, “in that he ha[d] proven by a preponderance of the
    evidence that his repetitive work activities did not merely trigger symptoms in
    a preexisting condition, but rather substantially contributed to his
    11
    development of soft tissue injuries in the cervical and thoracic areas of his
    back.”
    [¶24] WSI argues that the ALJ improperly relied on Sandberg’s subjective pain
    complaints and failed to provide “objective medical findings” of a medical
    condition, other than pain, in support of his conclusion. WSI contends it is
    unclear how the ALJ can disregard WSI’s medical expert Dr. Peterson’s
    opinion, as the “more qualified expert,” but yet rely on Sandberg’s
    “questionable” medical opinion evidence from Dr. Schoneberg and his
    chiropractor Dr. Remmick. WSI further characterizes Dr. Remmick’s opinion
    as “less authoritative.” WSI contends the ALJ improperly shifted the burden
    of proof to WSI to disprove Sandberg suffered a compensable injury. WSI
    essentially asserts the ALJ failed to perform a full analysis of the factors under
    N.D.C.C. § 65-05-08.3 when it gave more weight to Dr. Remmick’s opinion with
    regard to soft tissue injury. WSI argues the ALJ erred in finding that he
    sustained a compensable “soft tissue injury” and that his “soft tissue injuries”
    were not a pre-existing condition.
    [¶25] Sandberg responds that the ALJ’s revised order reasonably resolved a
    fact question that may not be overturned on appeal and that the overwhelming
    weight of the medical records support the ALJ’s findings. He asserts that WSI
    is engaging in gamesmanship and wordplay over a fair evaluation of the effect
    of his work on the actual clinical significance of the repetitive injury to his
    spine. He contends this Court has never held that the exclusive criteria by
    which to find a compensable worsening is based merely on a comparison of
    radiographs. Sandberg further asserts that, in accord with the ALJ’s finding,
    his doctors have recognized that his employment “in a real, true, important
    way made his preexisting condition significantly worse; it caused him to have
    pain, muscle spasm, trigger points, loss of motion and function that
    necessitated medical attention and caused disability.”
    [¶26] The ALJ’s revised order on remand determined that Sandberg had
    sustained a compensable injury because his work activities substantially
    contributed to his development of soft tissue injuries and that the soft tissue
    injuries were not a pre-existing condition. The ALJ made specific findings
    12
    regarding the ALJ’s consideration of the evidence presented at the hearing,
    weighed the doctors’ competing opinions, and concluded the medical evidence
    supported by objective medical findings established a compensable injury. On
    appeal we decide only whether a reasoning mind reasonably could have
    determined the ALJ’s findings were proven by the weight of the evidence from
    the entire record. Because the ALJ had the opportunity to observe witnesses
    and the responsibility to assess the credibility of witnesses and resolve the
    conflicts in the evidence, we also will not reweigh the evidence or substitute
    our judgment for the ALJ’s decision.
    [¶27] On this record, we affirm the ALJ’s revised order entered on remand,
    insofar as it found that Sandberg had sustained a compensable injury and is
    entitled to benefits. As will be discussed, however, we do not decide whether
    those benefits should be paid on an aggravation basis, as provided under
    N.D.C.C. § 65-05-15.
    V
    [¶28] WSI argues that the ALJ disregarded North Dakota’s legal requirement
    that a finding of a compensable injury in favor of Sandberg should be limited
    to an aggravation basis under N.D.C.C. § 65-05-15. WSI argues that if this
    Court affirms the ALJ and the district court on remand, Sandberg is only
    entitled to benefits on an aggravation basis.
    [¶29] Section 65-05-15, N.D.C.C., addresses whether and how to calculate
    benefits payable on an aggravation basis:
    When a compensable injury combines with a noncompensable
    injury, disease, or other condition, the organization shall award
    benefits on an aggravation basis, on the following terms:
    1. In cases of a prior injury, disease, or other condition,
    known in advance of the work injury, which has caused
    previous work restriction or interference with physical
    function the progression of which is substantially
    accelerated by, or the severity of which is substantially
    worsened by, a compensable injury, the organization shall
    pay benefits during the period of acute care in full. The
    period of acute care is presumed to be sixty days
    13
    immediately following the compensable injury, absent clear
    and convincing evidence to the contrary. Following the
    period of acute care, the organization shall pay benefits on
    an aggravation basis.
    2. If the progression of a prior compensable injury is
    substantially accelerated by, or the severity of the
    compensable injury is substantially worsened by a
    noncompensable injury, disease, or other condition, the
    organization shall pay benefits on an aggravation basis.
    3. The organization shall pay benefits on an aggravation
    basis as a percentage of the benefits to which the injured
    worker would otherwise be entitled, equal to the percentage
    of cause of the resulting condition that is attributable to the
    compensable injury. Benefits payable on an aggravation
    basis are presumed to be payable on a fifty percent basis.
    The party asserting a percentage other than the presumed
    fifty percent may rebut the presumption with clear and
    convincing evidence to the contrary.
    4. When an injured worker is entitled to benefits on an
    aggravation basis, the organization shall still pay costs of
    vocational rehabilitation, burial expenses under section 65-
    05-26, travel, other personal reimbursement for seeking and
    obtaining medical care under section 65-05-28, and
    dependency allowance on a one hundred percent basis.
    [¶30] Sandberg asserts that WSI waived the application of the aggravation
    statute and related arguments because it was not included in the specification
    of issue agreed to by the parties that governed the ALJ’s decision. He further
    contends that the aggravation statute does not apply.
    [¶31] In Sandberg I, 
    2019 ND 198
    , ¶ 26, we specifically did not address WSI’s
    argument that any finding in favor of Sandberg should be limited to an award
    based on aggravation under N.D.C.C. § 65-05-15, because we reversed the
    judgment and, by extension, the ALJ’s initial order. We remanded to the ALJ
    for consistent, sufficient findings on whether Sandberg sustained a
    compensable injury. As discussed, the issues decided by the ALJ on remand
    were necessarily included in the issues we sent back and the ALJ did not go
    beyond our mandate’s terms. Likewise, we did not preclude consideration of,
    or decide that WSI had waived, application of the aggravation statute. Because
    14
    the ALJ could have found on remand Sandberg did not sustain a compensable
    injury, any discussion of N.D.C.C. § 65-05-15 would have been unnecessary to
    our decision and potentially dicta.
    [¶32] Since WSI’s September 2016 order denying Sandberg’s claim for benefits,
    which the ALJ has now reversed twice, WSI has consistently taken the position
    that Sandberg was not entitled to benefits for his claimed injuries. WSI has
    therefore not addressed any calculation of benefits on an aggravation basis
    under N.D.C.C. § 65-05-15. Moreover, the ALJ’s revised order has specifically
    found that “Sandberg’s employment substantially contributed to the
    debilitating effects of his cervical and thoracic spine condition, which is a
    combination of degenerative disc disease and soft tissue injuries caused by his
    work conditions, and has caused him to seek considerable medical treatment
    and ultimately prevented him from performing his lifelong occupation.”
    (Emphasis added.)
    [¶33] While failure to include an issue in the subsequent specification of errors
    may waive that issue, see Beam v. N.D. Workforce Safety & Ins. Fund, 
    2020 ND 168
    , ¶ 7, 
    946 N.W.2d 486
    , WSI has continued to argue this issue after this
    Court’s reversal and remand in Sandberg I. WSI also included this argument
    in its specification of errors to the district court and again in the present appeal
    to this Court.
    [¶34] Because the ALJ determined that Sandberg has sustained a
    compensable injury and Sandberg’s compensable injury may “combine[] with a
    noncompensable injury, disease, or other condition,” as contemplated under
    N.D.C.C. § 65-05-15, we remand this case to WSI to determine whether
    N.D.C.C. § 65-05-15 applies and, if so, the proper calculation for an award of
    benefits to Sandberg.
    VI
    [¶35] We have considered the parties’ remaining arguments and conclude they
    are either without merit or unnecessary to our decision. We affirm the
    judgment affirming the ALJ’s revised order to the extent the order found
    Sandberg sustained a compensable injury; however, we remand the case to
    15
    WSI for further proceedings on whether benefits must be awarded on an
    aggravation basis under N.D.C.C. § 65-05-15.
    [¶36] Jon J. Jensen, C.J.
    Gerald W. VandeWalle
    Daniel J. Crothers
    Lisa Fair McEvers
    Jerod E. Tufte
    16