v. ICAO ( 2021 )


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  •      The summaries of the Colorado Court of Appeals published opinions
    constitute no part of the opinion of the division but have been prepared by
    the division for the convenience of the reader. The summaries may not be
    cited or relied upon as they are not the official language of the division.
    Any discrepancy between the language in the summary and in the opinion
    should be resolved in favor of the language in the opinion.
    SUMMARY
    June 17, 2021
    2021COA83
    No. 20CA1475, Browne v. ICAO — Labor and Industry —
    Workers’ Compensation — Benefits — Limits on Temporary and
    Permanent Partial Disability Payments — Effect of Previous
    Injury or Compensation
    A division of the court of appeals considers the relationship
    between section 8-42-107.5, C.R.S. 2020 (capping disability
    benefits based on an injured worker’s “impairment rating”), and
    section 8-42-104(5)(a), C.R.S. 2020 (apportioning benefits for
    successive injuries to the same body part), of the Workers’
    Compensation Act. The division concludes that the applicable
    statutory disability cap is determined not by combining, but by
    separately calculating, the “impairment ratings” for each injury.
    COLORADO COURT OF APPEALS                                       2021COA83
    Court of Appeals No. 20CA1475
    Industrial Claim Appeals Office of the State of Colorado
    WC No. 5034884
    Timothy Browne,
    Petitioner,
    v.
    Industrial Claim Appeals Office of the State of Colorado and City of Colorado
    Springs, Colorado,
    Respondents.
    ORDER AFFIRMED
    Division I
    Opinion by JUDGE DAILEY
    Freyre and Yun, JJ., concur
    Announced June 17, 2021
    Franklin D. Azar & Associates, P.C., Robert Turner, Colorado Springs,
    Colorado; The Elliott Law Offices, P.C., Mark D. Elliott, Alonit Katzman,
    Arvada, Colorado, for Petitioner
    No Appearance for Respondent Industrial Claim Appeals Office
    Dworkin, Chambers, Williams, York, Benson & Evans, P.C., Gregory K.
    Chambers, Denver, Colorado, for Respondent City of Colorado Springs
    The McCarthy Law Firm, P.C., John D. McCarthy, Arvada, Colorado, for
    Amicus Curiae Colorado Workers’ Compensation Education Association
    ¶1       The Workers’ Compensation Act (Act) limits the amount of
    temporary and permanent partial disability benefits awardable to
    an injured worker, depending upon an injured worker’s
    “impairment rating.” § 8-42-107.5, C.R.S. 2020. In 2016, when
    this claimant’s benefits were calculated, for injuries sustained with
    impairment ratings of 25% or less, temporary and permanent
    disability benefits were capped at $86,697.04; for injuries sustained
    with impairment ratings greater than 25%, temporary and
    permanent disability benefits were capped at $173,391.90.1
    ¶2       What happens when a worker suffers multiple, compensable
    work-related injuries that cumulatively — but not individually —
    produce an impairment rating greater than 25% to the same body
    part?
    1 These figures ($86,697.04 and $173,391.90) are not found in
    section 8-42-107.5, C.R.S. 2020; other figures are. But that
    provision instructs the director of the Division of Workers’
    Compensation (division) to adjust the disability caps annually “by
    the percentage of adjustment made by the director to the state
    average weekly wage pursuant to section 8-47-106[, C.R.S. 2020].”
    § 8-42-107.5. The date of a claimant’s injury determines which
    benefits caps will apply. The parties on appeal, as well as the
    Industrial Claim Appeals Office (Panel) and the administrative law
    judge (ALJ), agree that $86,697.04 and $173,391.90 accurately
    represent the lower and higher benefits cap numbers for injuries
    sustained in 2016.
    1
    ¶3    The Act mandates an apportionment between injuries: “In
    cases of permanent medical impairment,” a claimant’s award or
    settlement “shall be reduced” by “deduct[ing] from the permanent
    medical impairment rating for [a] subsequent injury” the
    “permanent medical impairment rating[s] applicable to the previous
    injur[ies] to the same body part.” § 8-42-104(5)(a), C.R.S. 2020.
    ¶4    The Act does not explicitly articulate how and when the
    reduced benefits via apportionment should be calculated. The
    present case asks us to resolve this question: Should the final
    apportioned impairment rating be calculated first, resulting in the
    application of the lesser benefits cap, or should the benefit be
    calculated based on the combined rating and then reduced by
    subtracting earlier awards?
    ¶5    Because we conclude that an apportioned “impairment rating”
    should be calculated first, we affirm the decision of the Panel
    upholding the order of an ALJ limiting the claim to the lower
    statutory benefits cap.
    I.    Background
    ¶6    Claimant, Timothy Browne, worked as a law enforcement
    officer for the City of Colorado Springs (the City). In 2007, he
    2
    sustained an injury to his cervical spine “during defense tactic
    training.” He reached maximum medical improvement (MMI) for
    that injury in January 2010 with a permanent impairment rating of
    6% of the whole person but with no restrictions. The City admitted
    to the 6% injury and paid claimant permanent partial disability
    (PPD) benefits having a present value of $31,577.95 for the 2007
    injury.
    ¶7    In July 2016, claimant sustained a second work-related injury
    to the same body part, his cervical spine. He reached MMI for this
    injury in April 2019. The City filed a final admission of liability
    (FAL) admitting to an impairment rating of 25% of the whole person
    based upon the treating physician’s impairment rating calculation.
    Claimant underwent a division-sponsored independent medical
    examination (DIME). The DIME physician agreed with the treating
    physician that claimant reached MMI in April 2019, but the DIME
    physician calculated claimant’s impairment rating to be 26% of the
    whole person.
    ¶8    The City did not file an FAL after the DIME physician issued
    his report. Instead, a dispute arose between the parties over the
    apportionment of claimant’s injuries and application of the
    3
    statutory benefits cap. The City took the position that claimant’s
    permanent impairment rating should first be reduced by the 6%
    impairment attributable to his 2007 injury, leaving him with a net
    permanent impairment rating of 20% and a disability benefits cap
    of $86,697.04 for the 2016 injury.
    ¶9     Claimant countered that the City’s approach improperly
    reduced the disability benefits to which he was entitled; according
    to him, the statutory benefits cap should be based on the DIME
    physician’s total impairment rating of 26%, from which the amount
    awarded to him for his 2007 injury should be deducted. Under
    claimant’s analysis, the statutory benefits cap — based on an
    impairment rating of 26% — would be $173,391.90.
    ¶ 10   The ingredients and sequence of calculation matter. If, as the
    City argues, claimant’s impairment rating is deducted first and the
    lower benefits cap applied, his resulting net PPD benefit is
    $30,763.47. But if, as claimant argues, the impairment rating is
    not deducted first and the award is based on the 26% impairment
    rating, the higher benefits cap would apply and claimant’s net PPD
    benefit would total $85,880.38. Thus, if claimant’s benefits are
    calculated based on the 20% apportioned impairment rating, he will
    4
    receive $55,116.91 less than he would if benefits are calculated
    based on the total 26% impairment rating.
    ¶ 11   An ALJ who heard the matter concluded that the statute’s
    plain language supports the City’s position: the impairment rating
    should be apportioned first. The ALJ noted that section 8-42-
    104(5) specifies that “the permanent medical impairment rating”
    attributable to the older injury “shall be deducted from the
    permanent medical impairment rating” of the subsequent injury.
    He reasoned that apportionment “is part of the process” used to
    determine the overall impairment rating attributable to a specific
    injury upon which the final award is ultimately based.
    ¶ 12   The Panel agreed with the ALJ’s interpretation. It noted that,
    contrary to claimant’s proposed formula and in contrast to the
    statutory declaration to subtract the earlier impairment rating from
    the later injury’s impairment rating, the Act does not specify the
    deduction of a previous award for a prior injury. It found nothing in
    the Act authorizing such a calculation. It therefore affirmed the
    ALJ’s PPD award of $30,763.47 to claimant.
    ¶ 13   On appeal, claimant asserts that the Panel and the ALJ
    misinterpreted the Act. He raises two primary contentions: (1) the
    5
    plain meaning of the Act mandates that the disability benefits cap
    be based on total, combined impairment ratings; and (2)
    interpreting the Act to apportion an impairment rating before
    applying the benefits cap facially violates the Fourteenth
    Amendment’s guarantee of equal protection under the law because
    those with impairment ratings of 26% or more from a single injury
    receive greater benefits than those with combined impairment
    ratings from multiple injuries that collectively exceed 25%. For the
    reasons discussed below, we are not persuaded by claimant’s
    arguments.
    II.   The Panel Correctly Interpreted The Act
    ¶ 14   Claimant first contends that to harmonize the Act’s provisions
    and adhere to the words’ plain meaning, the statutory disability cap
    should be applied to his combined impairment rating of 26%.
    Although he concedes the City is entitled to an apportionment
    between injuries, he argues that (1) the cap must be determined,
    without regard to apportionment, “as part of the award”; and (2) any
    apportionment must be taken later. According to him,
    apportionment (1) “simply explains how to calculate the appropriate
    offset” after the initial award has been determined; and (2) is
    6
    accomplished by deducting from the initial award the amount of
    disability benefits previously awarded in connection with the prior
    injury.
    ¶ 15    Adhering to this sequence in the calculation, claimant asserts,
    achieves both the goal of preventing double recovery and the
    beneficent purpose of the Act because it would not block claimants
    from “accessing the second cap of benefits.”
    ¶ 16    We disagree with claimant’s reading of the Act.
    A.   Standard of Review and Rules of Statutory Construction
    ¶ 17    We review issues of statutory construction de novo. Ray v.
    Indus. Claim Appeals Off., 
    124 P.3d 891
    , 893 (Colo. App. 2005),
    aff’d, 
    145 P.3d 661
     (Colo. 2006). Consequently, we are not bound
    by the Panel’s interpretation of the Act or the Panel’s earlier
    decisions. Olivas-Soto v. Indus. Claim Appeals Off., 
    143 P.3d 1178
    ,
    1180 (Colo. App. 2006).
    ¶ 18    We interpret the Act “according to its plain and ordinary
    meaning.” Davison v. Indus. Claim Appeals Off., 
    84 P.3d 1023
    ,
    1029 (Colo. 2004). “[W]e give effect to every word and render none
    superfluous because we ‘do not presume that the legislature used
    language idly and with no intent that meaning should be given to
    7
    its language.’” Lombard v. Colo. Outdoor Educ. Ctr., Inc., 
    187 P.3d 565
    , 571 (Colo. 2008) (quoting Colo. Water Conservation Bd. v.
    Upper Gunnison River Water Conservancy Dist., 
    109 P.3d 585
    , 597
    (Colo. 2005)). “If the statutory language is clear, we apply it as
    written.” Pinnacol Assurance v. Hoff, 
    2016 CO 53
    , ¶ 48.
    ¶ 19   However, where an agency’s governing statute is subject to
    different reasonable interpretations, we defer to the agency’s
    interpretation. Keel v. Indus. Claim Appeals Off., 
    2016 COA 8
    , ¶ 31;
    see Rocky Mountain Cardiology v. Indus. Claim Appeals Off., 
    94 P.3d 1182
    , 1184-85 (Colo. App. 2004) (noting that an administrative
    agency’s interpretation of its governing statute will be set aside
    “only if it is inconsistent with the clear language of the statute or
    with the legislative intent”).
    B.    Relevant Statutory Provisions
    ¶ 20   We are concerned here with the interpretation of two statutes:
    section 8-42-107.5 and section 8-42-104(5).
    ¶ 21   Section 8-42-107.5 places a cap on the amount of combined
    temporary and permanent disability benefits a claimant can receive.
    It divides claims into two categories: (1) those for injuries with an
    impairment rating of “twenty-five percent or less” and (2) those for
    8
    injuries with an impairment rating “greater than twenty-five
    percent.” § 8-42-107.5. The former are subject to a lower benefits
    cap than the latter. The statute provides:
    No claimant whose impairment rating is
    twenty-five percent or less may receive more
    than[, as applicable here, $86,697.04] from
    combined temporary disability payments and
    permanent partial disability payments. No
    claimant whose impairment rating is greater
    than twenty-five percent may receive more
    than[, as applicable here, $173,391.90] from
    combined temporary disability payments and
    permanent partial disability payments. . . .
    Id.
    ¶ 22    Section 8-42-104(5) — which applies when a claimant has
    sustained multiple injuries to the same body part — mandates that
    the permanent impairment rating from the first injury must be
    subtracted from any permanent impairment rating assigned after
    the second, or subsequent, injury. The relevant portions of section
    8-42-104 provide:
    (1) The fact that an employee has suffered a
    previous disability or impairment or received
    compensation therefor shall not preclude
    compensation for a later injury or for
    death . . . .
    ....
    9
    (3) An employee’s temporary total disability,
    temporary partial disability, or medical
    benefits shall not be reduced based on a
    previous injury.
    ....
    (5) In cases of permanent medical impairment,
    the employee’s award or settlement shall be
    reduced:
    (a) When an employee has suffered more than
    one permanent medical impairment to the
    same body part and has received an award or
    settlement under the [Act] or a similar act from
    another state. The permanent medical
    impairment rating applicable to the previous
    injury to the same body part, established by
    award or settlement, shall be deducted from
    the permanent medical impairment rating for
    the subsequent injury to the same body part.
    Id. (emphasis added).
    C.    Analysis
    1.   The Apportionment Provision is Clear and Unambiguous
    ¶ 23   Section 8-42-104(5) permits the apportionment of a disability
    between multiple injuries. It unequivocally states that, as between
    successive injuries to the same body part, apportionment is
    accomplished by subtracting the “permanent medical impairment
    rating” attributable to a claimant’s previous injury from the
    “permanent medical impairment rating” assigned to a claimant after
    10
    any subsequent injury. § 8-42-104(5). Contrary to claimant’s
    assertion, nothing in section 8-42-104(5) or any other provision in
    the Act authorizes apportionment based on the deduction of a
    previous monetary award from a later one.
    ¶ 24   Because “[i]n interpreting a statute, we must accept the
    General Assembly’s choice of language,” we cannot “add or imply
    words that simply are not there.” State v. Medved, 
    2019 CO 1
    , ¶ 19
    (quoting People v. Diaz, 
    2015 CO 28
    , ¶ 15); see Kraus v. Artcraft
    Sign Co., 
    710 P.2d 480
    , 482 (Colo. 1985) (“We have uniformly held
    that a court should not read nonexistent provisions into the
    Colorado Work[ers’] Compensation Act.”). Had the General
    Assembly wanted the Act to authorize apportionment by, as
    claimant wishes, subtracting a prior award from a subsequent one,
    it could have “written the statute to reflect that outcome.” Munoz v.
    Am. Fam. Mut. Ins. Co., 
    2018 CO 68
    , ¶ 13. But it didn’t: it based
    apportionment solely on a consideration of “permanent medical
    impairment rating[s].”
    ¶ 25   Because section 8-42-104(5) plainly and unambiguously
    states that a claimant’s prior “impairment rating” must be deducted
    when apportioning a prior injury, we must adhere to this statutory
    11
    mandate and apportion claimant’s impairment rating by deducting
    the 6% attributable to his 2007 injury from the 26% impairment
    rating he received after his 2016 work injury.2 Under section 8-42-
    104(5)’s mandate, this results in an impairment rating of 20%
    attributable to claimant’s 2016 injury.
    2.    Determining the Applicable Benefits Cap
    ¶ 26   The statutory disability benefits cap, section 8-42-107.5, is
    similarly clear. It sets a lower cap for injuries resulting in
    impairment ratings of 25% or less, and a higher cap for more
    serious injuries that result in impairment ratings of 26% or higher.
    ¶ 27   But what is the applicable “permanent medical impairment
    rating,” for purposes of determining which of the two benefits caps
    applies in section 8-42-107.5? Is it, as claimant argues, the “total”
    or “cumulative” impairment rating resulting from multiple injuries
    to the same body part? Or is it, as the City argues, simply the
    2 This, by the way, has long been the practice in this state. See,
    e.g., Colo. Fuel & Iron Corp. v. Rhodes, 
    166 Colo. 82
    , 86, 
    441 P.2d 652
    , 654 (1968) (Apportionment is determined by “computing the
    percentage of entire disability and deducting therefrom the
    percentage of the previous disability as it existed at the time of the
    subsequent injury.”).
    12
    “permanent impairment” rating attributable to the current injury
    alone (as determined via the apportionment process)?
    ¶ 28   In support of his argument, claimant points out that despite
    numerous amendments to the apportionment statute, it has never
    been altered to specify how the benefits cap should be determined.
    While that’s true, the legislature’s silence does not answer the
    question posed. With no express guidance from the legislature, it is
    equally likely that it intended claims to be apportioned first and the
    applicable benefits cap determined second. We do not read the
    General Assembly’s silence on this issue as making claimant’s
    proposed interpretation more plausible.
    ¶ 29   Indeed, in our view the more plausible construction
    determines the statutory cap based on a previously apportioned
    impairment rating.
    ¶ 30   Apportionment recognizes that an injured worker is not barred
    from recovering for a work injury just because he may have
    previously suffered a compensable work-related injury. See Empire
    Oldsmobile, Inc. v. McLain, 
    151 Colo. 510
    , 516, 
    379 P.2d 402
    , 405
    (1963). But it likewise protects employers from liability attaching
    from pre-existing or previous injuries. See, e.g., Lindner Chevrolet v.
    13
    Indus. Claim Appeals Off., 
    914 P.2d 496
    , 499 (Colo. App. 1995)
    (noting that the General Assembly “has accorded employers the
    protection of apportionment” for prior work-related injuries),
    overruling recognized by Baldwin Constr. Inc. v. Indus. Claim
    Appeals Off., 
    937 P.2d 895
    , 897 (Colo. App. 1997). In practice,
    apportionment ensures that an employer is only liable for
    impairment resulting from the particular work injury. And that
    goal is accomplished by determining the impairment rating for the
    injury in question.
    ¶ 31   Indeed, this distinction becomes apparent when one considers
    that the disability benefits cap cannot be applied until a claimant’s
    permanent impairment rating can be calculated.
    ¶ 32   Section 8-42-107.5 applies to permanent, not temporary,
    impairment ratings. Consequently, several divisions of this court
    have held the cap cannot be applied until a claimant has reached
    MMI and been awarded permanent disability benefits. See United
    Airlines v. Indus. Claim Appeals Off., 
    2013 COA 48
    , ¶ 14
    (determining that claimant whose temporary disability benefits
    exceeded the statutory cap did not have to repay any portion above
    the cap because she had not reached MMI and had not received any
    14
    permanent disability benefits); Leprino Foods Co. v. Indus. Claim
    Appeals Off., 
    134 P.3d 475
    , 480 (Colo. App. 2005) (“[B]ecause MMI
    is a predicate to a determination of claimant’s medical impairment
    rating, and claimant has not yet reached MMI, her permanent
    impairment rating cannot yet be determined. Accordingly,
    application of the cap is premature.”) (citation omitted); Donald B.
    Murphy Contractors, Inc. v. Indus. Claim Appeals Off., 
    916 P.2d 611
    ,
    613 (Colo. App. 1995) (“[O]nly after (1) the claimant reaches [MMI]
    and (2) his medical impairment rating is established can the
    applicability of [section] 8-42-107.5 be determined.”).
    ¶ 33   A claimant whose impairment rating must be apportioned has,
    then, already reached MMI with respect to at least one prior injury,
    and the statutory cap would have been applied to that previous
    award. Applying the cap to a combined, rather than an
    apportioned, rating effectively caps that portion of the claim twice.
    ¶ 34   Apportioning a claim before applying the statutory cap avoids
    this scenario. When apportionment is taken first, the statutory cap
    limits the award for the permanent impairment rating attributable
    to each particular injury. Claimant received PPD benefits for his
    15
    2007 injury and was therefore already subject to the statutory cap
    for that injury.
    ¶ 35   Claimant, however, argues that because the precise language
    used in section 8-42-104(5) — “shall be reduced” — is found in
    sections 8-42-103 and 8-42-114, C.R.S. 2020, which mandate
    offsets for social security and unemployment benefits,
    apportionment must also work as an offset to a previously
    determined award. But claimant’s reasoning is flawed.
    ¶ 36   An offset is loosely defined as follows: “the noun ‘offset’ is
    defined as a contrary claim or demand by which a given claim may
    be lessened or canceled; and the verb ‘offset’ as meaning to balance;
    to cancel by contrary claims or sums; to counteract.” Lalime v.
    Desbiens, 
    55 A.2d 121
    , 123 (Vt. 1947) (citation omitted). Under the
    Act, apportionment is not an offset. It is, as we explained above, a
    reduction in the impairment rating attributable to an injury. It is
    not a reduction of any sum or monetary award.3
    3 Claimant’s reliance on Leprino Foods Co. v. Industrial Claim
    Appeals Office, 
    134 P.3d 475
     (Colo. App. 2005), for a contrary
    conclusion is misplaced. Leprino Foods had nothing to do with
    apportionments; it held that no cap could apply until after a
    claimant had reached MMI but offered no guidance on when any
    apportionment should be computed. 
    Id. at 481
    . Consequently, its
    16
    ¶ 37   Nor does the Act’s goal of preventing double recovery convince
    us to adopt claimant’s proposed statutory interpretation. To be
    sure, preventing double recovery by claimants is “[a]n important
    policy of the” Act. Colo. Comp. Ins. Auth. v. Jorgensen, 
    992 P.2d 1156
    , 1165 (Colo. 2000). But determining the benefits cap based
    on a claimant’s total or combined impairment rating does not
    achieve that goal unless, as claimant suggests, his prior award is
    deducted from his current claim benefit. And we have already
    determined that the Act does not expressly authorize such a
    calculation in place of apportioning a claimant’s impairment rating.
    ¶ 38   Calculating a claimant’s disability benefit based on a
    combined, instead of apportioned, impairment rating is duplicative
    in the sense that a claimant would receive a benefit award based on
    the earlier impairment rating — here, 6% — and a second award
    based on the earlier rating plus the later rating — here, a combined
    impairment rating of 26%. Further, in arguing to the contrary,
    claimant fails to acknowledge that an impairment rating is part of
    the calculation determining the final benefits sum to which a
    description of benefits caps does not assist us in answering the
    questions posed here.
    17
    claimant is entitled and directly affects how much a claimant will
    recover. See §§ 8-42-106, -107(8)(d), C.R.S. 2020 (medical
    impairment disability benefits). Incorporating the 6% attributable
    to claimant’s prior injury into the calculation of benefits awardable
    for his 2016 injury would necessarily result in that 6% being
    incorporated into the calculation of benefits twice: first in 2007 and
    again in 2016. Adding in the 6% impairment rating from his 2007
    injury thus inflates his 2016 award, enabling him to recover more
    than just the benefit tied to the 2016 impairment.
    ¶ 39   As claimant also observes, the purpose of the statutory cap is
    “to create an overall savings in workers’ compensation costs to
    employers while allowing a more generous award for levels of
    impairment exceeding twenty-five percent.” Rogan v. Indus. Claim
    Appeals Off., 
    91 P.3d 414
    , 416 (Colo. App. 2003). Certainly, then,
    permitting higher recoveries in cases of more serious injury is one
    goal of the statutory cap, but equally important are cost savings.
    Although claimant’s combined impairment rating totals 26%, his
    rating with respect to this injury is only 20%. Applying the cap to
    the combined impairment rating would, in effect, award claimant
    benefits twice for the 6% impairment he suffered in his 2007 injury
    18
    because calculating benefits based on a 26% impairment rating
    necessarily incorporates the 6% impairment rating from the
    previous injury. Consequently, applying the benefits cap to the
    combined impairment rating frustrates the cost saving goal built
    into the Act. See 
    id.
    ¶ 40   True, the Act “is intended to be ‘remedial and beneficent in
    purpose, and should be liberally construed’ in order to accomplish
    these goals.” Davison, 84 P.3d at 1029 (quoting Colo. Counties, Inc.
    v. Davis, 
    801 P.2d 10
    , 11 (Colo. App. 1990)). But the beneficent
    goal arching over the Act does not trump an express provision of
    the Act. Cf. Curran v. Progressive Northwestern Ins. Co., 
    29 P.3d 829
    , 833 (Alaska 2001) (“[P]ublic policy can guide statutory
    construction but cannot override a clear and unequivocal statutory
    requirement”). Consequently, although one of the Act’s underlying
    goals is to generously compensate workers suffering more serious
    injuries with a higher benefit cap, we cannot ignore the Act’s
    directive to apportion impairment derived from multiple injuries.
    ¶ 41   We conclude that the legislature’s intent in imposing a
    statutory cap and also mandating apportionment of multiple claims
    arising out of injuries to the same body part is best achieved by
    19
    applying the cap to the apportioned impairment rating, as the Panel
    determined. Because the Panel’s interpretation does not conflict
    with the legislative intent, it is “entitled to great weight.” Jiminez v.
    Indus. Claim Appeals Off., 
    51 P.3d 1090
    , 1093 (Colo. App. 2002).
    We therefore defer to it and adopt it. See Keel, ¶ 31.
    ¶ 42   Consequently, we perceive no error in the Panel’s affirmance of
    the ALJ’s order limiting claimant’s recovery on this claim to the
    lower statutory benefits cap.
    III.   Equal Protection
    ¶ 43   Claimant also contends that the Panel’s interpretation violates
    his right to equal protection under the law. Specifically, he argues
    that it treats him differently from other injured workers. He asserts
    that applying the statutory benefits cap to an apportioned injury
    “would deny workers who receive a total rating of 26% or higher
    from two or more combined injuries the ability to reach the higher
    cap of benefits, but would allow those with just one injury of 26% or
    higher to reach the higher cap of benefits.” We are not persuaded
    that the Panel’s interpretation violates equal protection.
    20
    A.    Law Governing Equal Protection
    ¶ 44   As claimant concedes, “workers’ compensation claimants are
    not a suspect class and . . . workers’ compensation benefits are not
    a fundamental right. The rational basis test therefore applies to
    equal protection challenges in the workers’ compensation context,
    and claimant’s constitutional challenge should be assessed under
    that standard.” Sanchez v. Indus. Claim Appeals Off., 
    2017 COA 71
    , ¶ 20 (citations omitted).
    ¶ 45   “Under the rational basis test, ‘a statutory classification is
    presumed constitutional and does not violate equal protection
    unless it is proven beyond a reasonable doubt that the classification
    does not bear a rational relationship to a legitimate legislative
    purpose.’” Id. at ¶ 21 (quoting Pace Membership Warehouse v.
    Axelson, 
    938 P.2d 504
    , 506 (Colo. 1997)). Our review must be
    “especially deferential to legislative choice: ‘[S]o long as it is
    arguable that the other branch of government had [a rational] basis
    for creating the classification, a court should not invalidate the
    law.’” Culver v. Ace Elec., 
    971 P.2d 641
    , 646 (Colo. 1999) (quoting 2
    Ronald D. Rotunda et al., Treatise on Constitutional Law § 18.3
    (1986)).
    21
    ¶ 46   “[T]he burden is on claimant, as the challenging party, to
    prove the statute is unconstitutional . . . .” Pepper v. Indus. Claim
    Appeals Off., 
    131 P.3d 1137
    , 1139 (Colo. App. 2005), aff’d on other
    grounds sub nom. City of Florence v. Pepper, 
    145 P.3d 654
     (Colo.
    2006).
    The threshold question in an equal protection
    challenge is whether the legislation results in
    dissimilar treatment of similarly situated
    individuals. To violate equal protection
    provisions, the classification must arbitrarily
    single out a group of persons for disparate
    treatment from other persons who are similarly
    situated.
    Peregoy v. Indus. Claim Appeals Off., 
    87 P.3d 261
    , 265 (Colo. App.
    2004).
    B.   Analysis
    ¶ 47   Here, claimant’s equal protection challenge rests on his
    assertion that all claimants with impairment ratings in excess of
    25% are similarly situated and entitled to equal treatment under
    the law. But they are not. Claimant’s impairment rating is the sum
    of his ratings from two different injuries. Other claimants with
    impairment ratings greater than 25% suffered just one injury.
    22
    ¶ 48   Sustaining two work-related injuries places claimant and
    other multiple-incident claimants in a different category from
    claimants who have sustained just one injury and results in a key
    distinction between the two groups: those claimants who have
    suffered a prior injury received disability benefits for the prior injury
    because those claimants were entitled to disability benefits based
    on that earlier permanent impairment rating. See § 8-42-104(5);
    § 8-42-107; § 8-42-111, C.R.S. 2020. In contrast, workers who
    sustained a single injury resulting in an impairment rating of 26%
    or more have not previously received any disability benefits. The
    two groups are consequently not similarly situated. Claimant
    therefore cannot meet his threshold burden of establishing that he
    was treated differently than other similarly situated claimants. See
    Peregoy, 
    87 P.3d at 265
    .
    ¶ 49   Certainly, in some circumstances, all workers’ compensation
    claimants have been lumped into the same category. See, e.g.,
    Culver, 971 P.2d at 646 (“For purposes of further analysis, we
    assume that all injured claimants are similarly situated.”); Sanchez,
    ¶ 25 (“We therefore conclude that the class should be defined more
    narrowly as comprising all workers’ compensation litigants, because
    23
    parties to workers’ compensation actions are subject to different
    rules and a different statutory scheme than other litigants.”). But
    even if we were to assume for the purposes of our analysis here that
    all workers’ compensation claimants with impairment ratings
    greater than 25% are similarly situated, claimant still cannot meet
    his burden of establishing a constitutional violation.
    ¶ 50   Employing claimant’s formula to ascertain benefits payable to
    multi-injury claimants necessarily results in basing benefits on the
    same impairment rating twice: (1) when calculating benefits for the
    previous injury; and (2) when adding the prior impairment rating to
    the rating obtained in the subsequent injury. As claimant’s
    situation exemplifies, he received PPD benefits based on his 6%
    impairment rating for his 2007 injury. If we now calculate his
    award based on the combined rating of 26%, rather than
    apportioning first, benefits for the initial 6% rating would effectively
    be calculated twice and the resulting sum would be inflated by an
    additional 6% not attributable to the current injury. And that is a
    result at odds with the Act’s goal of avoiding duplicative recoveries.
    See Jorgensen, 992 P.2d at 1165.
    24
    ¶ 51     Nor was claimant actually deprived of access to a higher total
    award for his two injuries. In 2007, his injury was subject to a
    $75,000 cap applicable to injuries with impairment ratings of 25%
    or less. § 8-42-107.5, C.R.S. 2006. He received $28,930.94 in
    disability benefits for that injury, but had his need been greater or
    his disability more extensive, up to $75,000 was available to him
    before reaching the statutory cap in place in 2007. Importantly, the
    2007 award is not tallied into the statutory cap for the 2016 injury;
    the 2016 injury is subject to its own statutory cap, which had
    increased to $86,697.04. Thus, the maximum combined statutory
    caps available to claimant for his 2007 and 2016 injuries totals
    $161,697.04. It is worth noting, too, that had claimant’s 2007
    injury been subject to the cap in place in 2016, he would have had
    available to him up to $173,394.08 for the two injuries.4 In that
    scenario, the combined caps from claimant’s two injuries would
    thus slightly exceed the 2016 higher statutory cap of $173,391.90.
    Consequently, we disagree that claimant suffered any deprivation at
    all.
    4   $86,697.04 x 2 = $173,394.08.
    25
    ¶ 52   Also important to our equal protection analysis is the
    existence of a rational basis for any unequal treatment. To
    successfully plead an equal protection violation, claimant must
    establish the absence of a legitimate governmental interest in
    treating some workers with impairment ratings over 25% differently
    than others. He has not done so. Although claimant maintains
    that his treatment was unfair and unjustified, the supreme court
    has found financial grounds to be the basis for rational and
    legitimate legislative goals under the Act. The supreme court noted
    that there is
    a three-fold rational basis for the disparate
    treatment of [permanent total disability]
    claimants in comparison to [temporary partial
    disability], [temporary total disability], and
    [permanent partial disability] claimants to
    whom social security and employer-paid
    retirement benefits are payable after the
    person’s sixty-fifth birthday. They include:
    maintaining the fiscal integrity of the workers’
    compensation system; allocating the fiscal
    burden equitably among funding sources; and
    controlling costs to employers while providing
    legislatively-intended benefits to injured
    workers. We agree that the offset provision
    has a rational basis.
    Culver, 971 P.2d at 651-52. Similarly here, the goal of preventing
    inflated recoveries is a rational basis for the legislature to treat
    26
    claimants with one injury netting an impairment rating greater than
    25% differently from claimants whose impairment rating of 26% or
    more was caused by multiple injuries to the same body part.
    ¶ 53   We therefore conclude that claimant has failed to establish
    that basing the statutory benefits cap on apportioned impairment
    ratings violates his right to equal protection under the law. See
    Pepper, 131 P.3d at 1139.
    IV.   Disposition
    ¶ 54   The order is affirmed.
    JUDGE FREYRE and JUDGE YUN concur.
    27