Courtney E. Blakey v. University of Virginia Health System/Commonwealth of Virginia ( 2015 )


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  •                                              COURT OF APPEALS OF VIRGINIA
    Present: Judges Kelsey,∗ Alston and Senior Judge Bumgardner
    UNPUBLISHED
    Argued at Alexandria, Virginia
    COURTNEY E. BLAKEY
    MEMORANDUM OPINION∗∗ BY
    v.     Record No. 0837-14-4                                   JUDGE ROSSIE D. ALSTON, JR.
    FEBRUARY 18, 2015
    UNIVERISTY OF VIRGINIA HEALTH SYSTEM/
    COMMONWEALTH OF VIRGINIA
    FROM THE VIRGINIA WORKERS’ COMPENSATION COMMISSION
    Benjamin J. Trichilo (McCandlish Lillard, PC, on briefs), for
    appellant.
    Ryan D. Doherty, Assistant Attorney General (Mark R. Herring,
    Attorney General; Rhodes B. Ritenour, Deputy Attorney General;
    Peter R. Messitt, Senior Assistant Attorney General, on brief), for
    appellee.
    Amicus Curiae: The Virginia Trial Lawyers Association (Diane
    C.H. McNamara, on brief), for appellant.
    Courtney E. Blakey (“claimant”) appeals a decision of the Workers’ Compensation
    Commission (“the commission”) awarding her permanent partial disability benefits based on a
    rating of a 43% loss of the use of her right upper extremity. On appeal in her five overlapping
    assignments of error, claimant contends that the commission erred by unreasonably disregarding
    the findings of claimant’s treating physician and the impairment rating provided by a physician
    who examined claimant and reviewed her medical history, while crediting an impairment rating
    provided by a physician who never examined claimant. Further, claimant argues that the
    ∗
    Justice Kelsey participated in the decision of this case prior to his investiture as a Justice
    of the Supreme Court of Virginia.
    ∗∗
    Pursuant to Code § 17.1-413, this opinion is not designated for publication.
    commission erred by holding that disability ratings are limited by specific medical schedules or
    guides and by holding that pain is not an appropriate factor for consideration in the calculation of
    disability ratings. We agree with claimant that the commission erred by disregarding the
    overwhelming evidence from claimant’s treating doctors and adopting an impairment rating
    unsupported by the evidence and provided by a physician who never examined claimant or her
    medical records. Therefore, on this very fact-specific case, we reverse the commission’s
    decision and remand the case back to the commission for findings consistent with this opinion.
    I. Background1
    On August 29, 2009, claimant, a licensed practical nurse (“LPN”) employed as a nursing
    assistant for University of Virginia Health System (“employer”), sustained a work-related injury
    to her right arm when her arm was caught and jerked while she was holding a stretcher that
    collapsed with a patient on it. Claimant sought immediate medical attention and soon began
    treating with Dr. Eberly, a neurologist. Dr. Eberly issued his report on April 16, 2012, in which
    he stated that claimant had thoracic outlet syndrome. Electro Magnetic Imaging confirmed right
    ulner neuropathy. Dr. Eberly’s findings noted that epidural steroid injections had proven
    ineffective, that after her injury claimant regularly dropped objects with her right upper
    extremity, and that she experienced paresthesias, dysthesias, and pain in the C7/T1 distributional
    along the medial aspect of her right arm and forearm.
    On June 27, 2012, Dr. Phillips, an orthopaedic specialist, evaluated claimant and
    prepared a report. Dr. Phillips’ report stated that claimant had reached maximum medical
    improvement and that in his opinion, claimant had a 72% permanent partial disability rating of
    1
    As the parties are fully conversant with the record in this case and because this
    memorandum opinion carries no precedential value, this opinion recites only those facts and
    incidents of the proceedings as are necessary to the parties’ understanding of the disposition of this
    appeal.
    -2-
    the right upper extremity. Specifically, Dr. Phillips calculated claimant’s impairment rating
    based on the Fifth Edition of the AMA Guides to the Evaluation of Permanent Impairment,
    which factored in impairment ratings for flexion, abduction, adduction, and internal and external
    rotation of the upper extremity, as well as strength loss and sensory deficits of the hand “which is
    caused by, and a direct result of, the thoracic outlet syndrome which is basically an injury to the
    nerves going to the upper extremity and affecting the region of the innervate, i.e., in particular
    the examinee’s hand . . . .” Finally, Dr. Phillips factored in an additional 8% permanent partial
    impairment each for the upper extremity and the hand “for pain, weakness, loss of function and
    loss of endurance[.]”
    On September 4, 2012, Dr. Eberly confirmed with Managed Care Innovations, L.L.C.,
    employer’s claims’ administrator, that he agreed with Dr. Phillips’ 72% impairment rating of
    claimant’s right arm, stating that “I agree with [Dr. Phillips’] rating, she is unable to work
    because of the injury.”
    At some point, apparently dissatisfied with the findings of Dr. Phillips, employer
    requested that a specific health care provider, Dr. Thomas Scioscia, a medical director with
    Managed Care Innovations, L.L.C., opine on whether he agreed with Dr. Phillips’ and
    Dr. Eberly’s disability rating of 72%. The form employer submitted to Managed Care
    Innovations requesting Dr. Scioscia’s opinion listed the phone numbers of claimant’s treating
    physicians, Dr. Phillips and Dr. Eberly, and provided a three-paragraph summary of claimant’s
    treatment. In response, under the “Medical Director’s Review and Findings Section,”
    Dr. Scioscia without more, simply stated “Please see G2 chart. A max rating of 43% for [upper
    extremity impairment] is reasonable, suggest IME or rating using 6th Edition of ‘The Guides.’”
    Dr. Scioscia never examined claimant, reviewed her medical records or indicated that he
    contacted claimant’s treating physicians.
    -3-
    Claimant filed her application for permanent partial disability benefits on July 16, 2012.2
    Employer opposed the claim, arguing that claimant had not reached maximum medical
    improvement and that Dr. Phillips’ rating was “defective” due to his alleged “double counting”
    (for pain, loss of function, and loss of endurance, which employer contended was already
    factored into the AMA Guides rating calculations). At the hearing before the deputy
    commissioner on December 5, 2012, claimant testified that she drops things because her “grasp
    is off,” her right extremity is cold, and she feels pain, “pin prickling,” and a “stabbing, jolting
    type of feeling” through her body if someone touches her right upper extremity. During the day,
    claimant has constant numbness and pain at a level of 7 out of 10. The evidence also indicated
    that claimant’s mother moved in to assist her in 2009 due to concerns over the pain claimant was
    experiencing and the side effects of medication she took.
    With respect to her post-injury employment, claimant testified that Dr. Eberly released
    her to perform light-duty work on a trial basis in May 2012, and that she followed his
    instructions and obtained a part-time job as a licensed nurse practitioner two days every other
    weekend. Claimant also works two days a month as a secretary at a children’s hospital in D.C.
    The job does not require claimant to do any lifting; she pushes a medication cart with her left
    hand and has CNAs assist her with applying treatment to patients.
    Critical to performing her functions as a LPN, claimant stated that her injury has limited
    her in her job duties and personally because she cannot carry heavy things or pick up her son.
    Additionally, she had to go back to school to get her R.N. because of her physical limitations.
    LPNs are generally required to be able to lift over 25 pounds, which claimant could do before her
    injury.
    2
    Claimant previously filed her first claim for benefits on January 25, 2010, alleging injury
    to her right shoulder, neck, and wrist and was awarded various periods of temporary total and
    partial disability benefits.
    -4-
    The deputy commissioner issued his opinion on December 19, 2012, awarding claimant
    benefits based on a disability rating of 43% to the right upper extremity. The deputy
    commissioner essentially discounted Dr. Eberly’s validation and endorsement of Dr. Phillips’
    72% impairment rating, concluding that “[t]here is no indication Dr. Eberly provided his own
    quantitative assessment to affirm the 72 percent impairment rating.” The deputy commissioner
    also discounted Dr. Phillips’ 72% rating because he added an additional 8% impairment for
    “pain, weakness, loss of function and loss of endurance . . . .” The deputy commissioner noted
    “[t]hat is not allowed.” Finally, the deputy commissioner rejected Dr. Phillips’ rating because he
    used “erroneous Virginia standards” based on tables in the AMA Guides the deputy
    commissioner determined Dr. Phillips misapplied.
    On April 3, 2014, the commission issued its opinion affirming the deputy commissioner’s
    ruling. Like the deputy commissioner, the commission questioned Dr. Phillips’ findings because
    he increased claimant’s disability rating by considering pain, weakness, loss of function, and loss
    of endurance. Additionally, the commission disapproved of Dr. Eberly’s note to employer
    agreeing with Dr. Phillips’ 72% rating because “the only basis expressed by Dr. Eberly for his
    agreement with Dr. Phillips’ rating was that the claimant had been unable to work as a result of
    the injury” despite the fact that claimant had been working part time for about 19 months.
    Therefore, the commission found that “[t]here is nothing in the record to indicate that
    Dr. Eberly’s agreement with Dr. Phillips’ rating represented anything more than simply deferring
    to Dr. Phillips on the issue. Accordingly, we grant little evidentiary value to Dr. Eberly’s
    opinion[.]”
    Of significance is that the commission noted that Dr. Phillips’ evaluation did contain data
    regarding the functionality of both body parts and that the medical history taken by him was
    “complete and consistent with the other evidence in the record.” Remarkably, the commission
    -5-
    found that it was proper for the deputy commissioner to consider Dr. Phillips’ opinion along with
    employer’s medical evidence, to determine claimant’s impairment rating. However to this end,
    the commission found that the data in Dr. Phillips’ evaluation was “sufficient to allow
    Dr. Thomas Scioscia . . . to calculate a permanent impairment rating of 43 percent.” The
    commission noted that the deputy commissioner was not required to discount Dr. Scioscia’s
    rating because he did not personally examine claimant and that “[i]n light of Dr. Phillips’
    problematic calculation of the claimant’s level of impairment, the [d]eputy [c]omission[er] was
    free to find the 43 percent disability rating assigned by Dr. Scioscia to be more credible than that
    offered by Dr. Phillips.” Therefore, the commission affirmed the deputy commissioner’s award
    based on a 43% impairment rating of claimant’s upper right extremity. This appeal followed.
    II. Analysis
    The fundamental purpose of the Workers’ Compensation Act (the “Act”) is to
    compensate employees for injuries “arising out of and in the course of employment . . . without
    regard to fault.” Lawrence J. Pascal, Virginia Workers’ Compensation: Law & Practice § 1.03
    (4th ed. 2011). “It is as essential to industry as it is to labor.” 
    Id. (quoting Feitig
    v. Chalkley,
    
    185 Va. 96
    , 
    38 S.E.2d 73
    (1946)). “‘Under well recognized principles governing the standard of
    review on appeal, we must affirm the commission’s judgment awarding [permanent partial
    disability] if those findings are supported by credible evidence in the record, regardless of
    whether contrary evidence exists or contrary inferences may be drawn.’” United Airlines, Inc. v.
    Sabol, 
    47 Va. App. 495
    , 500, 
    624 S.E.2d 692
    , 694 (2006) (quoting Rusty’s Welding Service, Inc.
    v. Gibson, 
    29 Va. App. 119
    , 131, 
    510 S.E.2d 255
    , 261 (1999)). “‘In determining whether
    credible evidence exists, the appellate court does not retry the facts, reweigh the preponderance
    of the evidence, or make its own determination of the credibility of the witnesses.’” 
    Id. at 501,
    624 S.E.2d at 694 (quoting Pruden v. Plasser American Corp., 
    45 Va. App. 566
    , 574-75, 612
    -6-
    S.E.2d 738, 742 (2005)). “If the Commission’s findings of fact are not based on credible
    evidence, ‘its findings are not binding and the question presented becomes one of law.’” Ford
    Motor Co. v. Favinger, 
    275 Va. 83
    , 88, 
    654 S.E.2d 575
    , 578 (2008) (quoting Great Atlantic &
    Pacific Tea Co. v. Robertson, 
    218 Va. 1051
    , 1053, 
    243 S.E.2d 234
    , 235 (1978)).
    “[T]o obtain benefits under Code § 65.2-503 for the loss of use of a particular body
    member, the claimant must establish that he has achieved maximum medical improvement and
    that his functional loss of capacity be quantified or rated.” Cafaro Constr. Co. v. Strother, 
    15 Va. App. 656
    , 661, 
    426 S.E.2d 489
    , 492 (1993) (citing Hungerford Mechanical Corp. v. Hobson,
    
    11 Va. App. 675
    , 
    401 S.E.2d 213
    (1991)). “The commission, in determining permanent partial
    disability benefits, must rate claimant’s percentage of incapacity based on the evidence presented
    to it. In doing so, it gives great weight to the treating physician’s opinion.” 
    Sabol, 47 Va. App. at 501
    , 624 S.E.2d at 695 (citations omitted). Though not binding on this Court, we agree with
    the commission’s acknowledgement and stated policy that
    In determining the extent of permanent loss of use of a member,
    the Commission has followed precedent and stated as policy that is
    it [sic] not held to anatomical loss determinations by one or more
    physicians nor is it limited by specific loss schedules or by various
    published guides which determine incapacity on the basis of a
    percent of motion or function of a member. Rather, the
    Commission may consider the nature of disability, the
    circumstances under which a member’s use would be permanently
    affected, alternate use of a member in other employments for
    which the claimant may be qualified, the effect of pain on use
    capacity, and such pertinent considerations as would permit the
    Commission to make a reasonable determination of permanent loss
    or loss of use in each case.
    Rivera v. Ford Motor Co., VWC File No. 216-39-16 (Va. Workers’ Comp. Comm’n July 12,
    2006) (citations omitted).
    Acknowledging the legal standards controlling our consideration of the factual
    underpinnings of this matter, we hold that in the unique circumstances presented herein, because
    -7-
    the commission’s findings of fact are not based on credible evidence, the commission’s findings
    are not binding on this Court and the question presented before us thus becomes one of law.
    Because the commission’s award of a 43% rating was based solely and simply on Dr. Scioscia’s
    note, which under these very particularized facts falls far short of being credible evidence, the
    commission erred in awarding benefits based on a 43% impairment rating. See 
    Favinger, 275 Va. at 88
    , 654 S.E.2d at 578 (“If the [c]ommission’s findings of fact are not based on credible
    evidence, ‘its findings are not binding and the question presented becomes one of law.’” (quoting
    Great Atlantic & Pacific Tea 
    Co., 218 Va. at 1053
    , 243 S.E.2d at 235)). Though great deference
    is merited and indeed given to the commission in weighing and determining the credibility of the
    evidence, in this case, Dr. Scioscia’s 43% “rating” was simply not sufficient to merit the great
    deference traditionally warranted.
    To begin with, Dr. Scioscia never examined the claimant or reviewed her medical
    records. In fact, the only information related to claimant’s injury given to Dr. Scioscia was a
    two-paragraph summary of treatment, presumably completed by someone at Managed Care
    Innovations, L.L.C., and Dr. Phillips’ report. Additionally, Dr. Scioscia’s note does not reflect
    that he ever contacted either of claimant’s treating physicians or reviewed their records. Further
    and most importantly, Dr. Scioscia’s note did not provide an actual impairment rating for
    claimant’s right upper extremity. His note specifically stated that a “max rating of 43% for the
    UEI is reasonable” but he goes on to recommend an IME “or rating using 6th Edition of ‘The
    Guides.’” Indeed under these facts, Dr. Scioscia was virtually incapable of calculating an
    impairment rating himself because he had wholly insufficient information from which to
    calculate an impairment rating. Rather, he merely opined that he thought Dr. Phillips’ rating was
    higher than reasonable, that the concurring endorsement of that finding was not tenable, and that
    employer should consider having claimant undergo an IME with a doctor who could then
    -8-
    calculate an impairment rating using the Sixth Edition of the AMA Guides. Dr. Scioscia’s note
    was not a report; it was not based on any level of sufficient knowledge of claimant’s injury, had
    no basis in fact, and did not provide a rating to any degree of medical certainty. Therefore, it
    was wholly insufficient evidence on which to base an award.
    There is no dispute with the general analytical framework professed by the dissent. With
    all due respect, the dissent spends much of its analysis discrediting Dr. Eberly’s and Dr. Phillips’
    opinions and in its efforts to do so, acknowledges the principles that when an expert’s rating
    “flows from an assumption that rests upon a faulty premise, . . . the commission may refuse, and
    often will be required to refuse, to attribute any weight to that opinion.” Sneed v. Morengo, Inc.,
    
    19 Va. App. 199
    , 205, 
    450 S.E.2d 167
    , 171 (1994) (citing Clinchfield Coal Co. v. Bowman, 
    229 Va. 249
    , 252, 
    329 S.E.2d 15
    , 16 (1985)). And, even though “a treating physician’s opinion
    normally is given great weight, such an opinion is not conclusive, especially when the opinion is
    not accompanied by any reasoning or explanation.” Thompson v. Brenco, Inc., 
    38 Va. App. 617
    , 623, 
    567 S.E.2d 580
    , 583 (2002) (emphasis added). The distinct problem in the instant
    matter is that Dr. Scioscia’s note rests upon no premise whatsoever as he did not provide an
    actual rating and did not provide any opinion of claimant’s disability to any degree of medical
    certainty. Dr. Scioscia’s note, even if it could be called an impairment rating, was merely based
    on Dr. Scioscia’s review of employer’s brief summary of claimant’s injuries as he neither
    reviewed any medical records nor spoke to claimant’s treating physician. The commission may
    take issue with Dr. Phillips’ methodology or the perceived brevity of Dr. Eberly’s concurrence
    with Dr. Phillips’ opinion, however it cannot ignore that both were based on full reviews of
    medical records and examinations of claimant whereas Dr. Scioscia did not provide a disability
    rating and his “opinion” that a maximum 43% rating would be “reasonable” was “not
    accompanied by any reasoning or explanation.” 
    Id. “‘A medical
    opinion based upon a
    -9-
    ‘possibility’ is irrelevant, purely speculative and hence, inadmissible.’” Farmington Country
    Club, Inc. v. Marshall, 
    47 Va. App. 15
    , 28, 
    622 S.E.2d 233
    , 240 (2005) (quoting Spruill v.
    Commonwealth, 
    221 Va. 475
    , 479, 
    271 S.E.2d 419
    , 421 (1980)). Dr. Scioscia’s conclusory note,
    unlike Dr. Phillips’ full report and Dr. Eberly’s assessment and concurring opinion, merely
    speculated that an independent medical exam and rating based on the Sixth Edition to the AMA
    Guides would yield a maximum reasonable disability rating of 43%. He did not calculate that
    rating himself or base it on anything other than a two-paragraph summary of claimant’s injuries
    provided by employer. Therefore, Dr. Scioscia’s note was not credible evidence upon which an
    award should have been based.
    Absent Dr. Scioscia’s note, the only evidence before the commission supported a 72%
    impairment rating – Dr. Phillips’ impairment rating and a concurrence from claimant’s treating
    physician, Dr. Eberly. The commission partially discredited the value of Dr. Phillips’ rating
    because he factored in additional impairment for “pain, weakness, loss of use in addition to
    impairment” and because he based his impairment rating on an alleged misinterpretation of
    tables in the Fifth Edition of the AMA Guides. This was also error. Neither a physician nor the
    commission is limited to specific guides or tables when determining an impairment rating. See
    Rivera, VWC File No. 216-39-16 (Va. Workers’ Comp. Comm’n July 12, 2006). Further, pain
    while not compensable, is ratable. While “pain alone is not compensable[,] . . . common sense,
    logic, and medical opinion dictate that pain can, at times, impair function and result in
    disability.” Lynchburg Foundry Co. v. Tucker, No. 2251-91-3 (Va. Ct. App. Sept. 29, 1992) (per
    curiam).3
    3
    “Although not binding precedent, unpublished opinions can be cited and considered for
    their persuasive value.” Otey v. Commonwealth, 
    61 Va. App. 346
    , 350 n.3, 
    735 S.E.2d 255
    , 257
    n.3 (2012) (citing Rule 5A:1(f)).
    - 10 -
    Dr. Phillips based his rating on consultation with recognized medical guides as well as
    his assessment of other factors affecting claimant’s continued, legitimate, and severe disability,
    such as pain, loss of use, and endurance. To that end, it is important to note that there was no
    dispute in this case over whether claimant suffered an injury, the severity of that injury, the
    appropriateness of the jobs she currently works, nor were there any allegations of malingering.
    In fact, despite Dr. Scioscia’s recommendation, employer never requested an independent
    medical exam or impairment rating of claimant. Given the evidence supporting Dr. Phillips’
    impairment rating, we hold that it was error for the commission to discredit Dr. Phillips’ rating
    for the reasons that it did.
    Moreover, the commission erred by discrediting Dr. Eberly’s opinion on Dr. Phillips’
    impairment rating because “the only basis expressed by Dr. Eberly for his agreement with
    Dr. Phillips’ rating was that the claimant had been unable to work as a result of the injury.” To
    the contrary, the record showed that claimant had been working part time for about 19 months,
    pursuant to instructions from Dr. Eberly. In addition, Dr. Eberly had been claimant’s treating
    physician since 2009. He approved her release to light-duty work on a trial basis as of May
    2012. Travelling miles to different work opportunities and oftentimes living in hotels, claimant
    was only working six days a month at the time of the hearing. The history relied upon by
    Dr. Phillips in determining his impairment rating included Dr. Eberly’s records. Certainly
    Dr. Eberly’s status as claimant’s treating physician and familiarity with the history of her injury
    and return to work rendered him well-equipped to opine on an impairment rating for her arm.
    See 
    Sabol, 47 Va. App. at 501
    , 624 S.E.2d at 695 (noting that in rating claimant’s percentage of
    incapacity based on the evidence presented to the commission, the commission “gives great
    weight to the treating physician’s opinion”). Standing in contrast to Dr. Scioscia’s conclusory
    remark bereft of any factual findings, Dr. Eberly objectively stated that he agreed with
    - 11 -
    Dr. Phillips’ impairment rating and agreed that claimant could not work. Even once released to
    light-duty work, claimant’s two positions combined only amounted to six days a month
    employment. Given Dr. Eberly’s history and familiarity with claimant and her injury, and the
    fact that he was only asked to opine on the impairment rating and not calculate or provide a basis
    for his own, there was no reason for the commission to arbitrarily discredit Dr. Eberly’s opinion.
    For these reasons we hold that there was no credible evidence in the record to support the
    commission’s award of benefits based on a 43% impairment rating of claimant’s upper extremity
    and remand this case to the commission for disposition consistent with this opinion.
    Reversed and remanded.
    - 12 -
    Kelsey, J., dissenting.
    In this case, the claimant’s counsel hired an expert witness to give a medical opinion on
    the extent of the claimant’s disability. After seeing the claimant one time and after expressly
    disclaiming any physician-patient relationship, the hired expert concluded that the claimant
    should be given a 72% permanent partial disability (PPD) rating. That conclusion was then
    presented to the claimant’s treating physician in a form letter. The treating physician scrawled
    on the form that he agreed with the PPD rating.
    No evidence suggested that the treating physician read the hired expert’s report. Nor
    does the record suggest that the treating physician performed any independent analysis of the
    many variables that go into calculating a disability rating (or, for that matter, that he even knew
    the correct name of the expert). To make matters worse, the treating physician adopted the hired
    expert’s PPD rating, based on the mistaken assertion that the claimant was unable to work
    because of the accident even though, in fact, she had been working in a limited capacity for over
    a year.
    The claimant argues on appeal that the law compels the commission, sitting as factfinder,
    to accept her hired expert’s “uncontested” opinion. See, e.g., Appellant’s Br. at 14, 16; Oral
    Argument Audio at 07:20 to 07:26. I disagree. Under settled principles, the claimant had the
    burden of proof to establish by a preponderance of the evidence the extent, if any, that she was
    disabled as a result of her accident. The evidence she presented was arguably sufficient, though
    barely so, for the commission to accept the expert’s 72% PPD rating. Sitting as factfinder,
    however, the commission was understandably not persuaded. The commission found serious
    flaws in the hired expert’s analysis and determined that the treating physician hurriedly deferred
    to this flawed analysis without any independent analysis.
    - 13 -
    It is thus an overstatement, at best, for the claimant to assert that no rational factfinder
    could be unpersuaded by the hired expert’s PPD rating. Aware of this, the claimant does what
    many litigants do when faced with an apparently insurmountable hurdle — she changes the
    subject from the only relevant issue to a wholly irrelevant one by challenging the evidentiary
    basis for the commission’s decision to award her the lower 43% PPD rating. This contention is
    emotively appealing but conceptually flawed because, if it were true, she would get nothing.
    The question in this case is not whether the lesser award should be vacated as factually
    insupportable (a remedy the employer does not seek on appeal) but whether the commission
    could rationally find that the preponderance of the evidence did not support the higher award.
    By incorrectly framing the debate in this manner, the claimant has given an arguably correct
    answer to an indisputably wrong question. It is irrelevant whether “the commission erred in
    awarding benefits based on a 43% impairment rating.” Supra at 8. The only issue we must
    decide is whether the commission erred in rejecting as factually unpersuasive the 72% PPD
    rating advocated by the claimant’s hired expert. For the following reasons, I believe the
    commission did not err in doing so.
    I.
    A. APPELLATE STANDARD OF REVIEW
    On appeal, we review de novo the commission’s legal conclusions. “In contrast, we
    review questions of fact under the highest level of appellate deference.” Thorpe v. Clary, 
    57 Va. App. 617
    , 623, 
    704 S.E.2d 611
    , 614 (2011), aff’d sub nom. Thorpe v. Ted Bowling Constr.,
    
    283 Va. 808
    , 
    724 S.E.2d 728
    (2012). “By statute, we treat the commission’s factfinding as
    ‘conclusive and binding’ if it rests on a sufficient threshold of evidence.” 
    Id. (quoting Berglund
    Chevrolet, Inc. v. Landrum, 
    43 Va. App. 742
    , 749-50, 
    601 S.E.2d 693
    , 697 (2004)). “This
    - 14 -
    appellate deference is not a mere legal custom, subject to a flexible application, but a statutory
    command that binds us so long as a rational mind upon consideration of all the circumstances
    could come to the conclusion the commission adopted.” 
    Id. (citation and
    internal quotation
    marks omitted).
    “Because we do not judge the credibility of witnesses or weigh the evidence on appeal,
    our personal view of the underlying factual debate plays no role in the task of appellate review.”
    
    Id. (quoting Clifton
    v. Clifton Cable Contracting, LLC, 
    54 Va. App. 532
    , 541 n.2, 
    680 S.E.2d 348
    , 353 n.2 (2009)). “It thus makes no difference that we would have decided the facts
    differently, because the statute authorizes the commission to adopt whatever view of the
    evidence it considers most consistent with reason and justice.” 
    Id. at 623-24,
    704 S.E.2d at 614
    (citations, brackets, and internal quotation marks omitted).
    B. THE PERMANENT DISABILITY FACTUAL FINDING
    The claimant bore “the burden of proving [her] disability and the periods of that
    disability.” Donovan v. United Parcel Service, Inc., 
    63 Va. App. 438
    , 445, 
    758 S.E.2d 99
    , 102
    (2014) (quoting Marshall Erdman & Assocs. v. Loehr, 
    24 Va. App. 670
    , 679, 
    485 S.E.2d 145
    ,
    149-50 (1997)). Attempting to shoulder that burden, the claimant’s counsel hired Dr. Jeffrey
    Phillips, an orthopedist, to provide a written expert opinion concerning the extent of the
    claimant’s disability. App. at 107-09, 226-28. Dr. Phillips saw the claimant on one occasion for
    this purpose and clearly documented that “no doctor/patient relationship was established”
    between them. 
    Id. at 107.
    He opined that the claimant suffered a 72% PPD rating affecting her
    upper right extremity. Dr. Phillips based this opinion on his interpretation of various provisions
    of the Fifth Edition of the AMA Guides to the Evaluation of Permanent Impairment (“AMA
    Guides”).
    - 15 -
    The claimant’s treating physician, Dr. Lewis Eberly, was later given a form letter
    advising him that “Dr. Phillip Green” had provided an expert report opining a 72% PPD rating.
    
    Id. at 104,
    231. The form asked whether Dr. Eberly agreed with the rating and specifically
    asked, “Why or why not?” 
    Id. In reply,
    Dr. Eberly made a two-sentence handwritten note on the
    form stating: “I agree with this rating. She is unable to work because of the injury.” 
    Id. Dr. Eberly
    was apparently unaware that “Dr. Phillip Green” did not exist (the report was issued
    by Dr. Jeffrey Phillips)4 and indicated as the basis for his agreement that the claimant was unable
    to work when she had already returned to work in a limited capacity. Dr. Eberly also made no
    effort to explain whether he had independently calculated the 72% PPD rating and, if so, what
    combination of variables justified the rating.
    The employer’s claims administrator then asked Dr. Thomas Scioscia to review
    Dr. Phillips’s independent medical evaluation (IME) report and offer an expert opinion on the
    disability rating that he had assigned. Dr. Scioscia reviewed Dr. Phillips’s findings. Disagreeing
    with the 72% PPD rating opined by Dr. Phillips, Dr. Scioscia concluded that a “max rating of
    43%” was reasonable. 
    Id. at 233.
    He added that an IME or PPD rating should be based on the
    more up-to-date “6th Edition of ‘The [AMA] Guides.’” 
    Id. The claimant
    filed a petition seeking a 72% PPD rating for her upper right extremity.
    The claimant did not call Dr. Phillips as a witness and instead relied solely on his written report.
    The deputy commissioner rejected the hired expert’s opinion, reviewed the extensive written
    medical record, and found that the evidence supported only a 43% PPD rating. See 
    id. at 245.
    Both the claimant and the employer requested review by the full commission. The claimant
    4
    The form mistakenly referred to Dr. Jeffrey Phillips, with the medical partnership of
    Phillips & Green, M.D., as “Dr. Phillip Green.” See App. at 104, 231.
    - 16 -
    argued for a 72% PPD rating, as suggested by Dr. Phillips, while the employer contended that
    the medical evidence justified a 14% PPD rating, not the “max rating” of 43% suggested by
    Dr. Scioscia. 
    Id. at 233.
    On review, the full commission disagreed with both parties and agreed with the deputy
    commissioner. The commission’s analysis began with Dr. Eberly, the only treating physician
    who had said anything about the claimant’s PPD rating. The form request asked him if he agreed
    with the 72% PPD rating and, if so, to explain the basis for his opinion. The commission was
    struck by the fact that Dr. Eberly, while offering no explanation of any kind, simply jotted down
    a handwritten statement saying that he agreed with the rating. Dr. Eberly presented no
    independent analysis of either the claimant’s disability or Dr. Phillips’s application of the AMA
    Guides. Nothing in the record, the commission observed, suggested that Dr. Eberly had
    reviewed the “examination report” of Dr. Phillips or “that he performed any calculation or
    analysis in arriving at his opinion.” Blakey v. Univ. of Va. Health Sys., 2014 Va. Wrk. Comp.
    LEXIS 100 (Apr. 3, 2014).
    Furthermore, the commission noted, the “only basis expressed by Dr. Eberly” for
    agreeing with the 72% PPD rating “was that the claimant had been unable to work as a result of
    the injury.” 
    Id. But that
    premise was mistaken because the claimant “in fact had been working
    for approximately 19 months.” 
    Id. In sum,
    the commission concluded: “There is nothing in the
    record to indicate that Dr. Eberly’s agreement with Dr. Phillips’ rating represented anything
    more than simply deferring to Dr. Phillips on the issue. Accordingly, we grant little evidentiary
    value to Dr. Eberly’s opinion . . . .” 
    Id. The commission
    also found fault with the disability rating methodology used by
    Dr. Phillips. He had added an “additional rating for pain, weakness, loss of function and loss of
    - 17 -
    endurance” based upon “Chapter 18 of the 5th edition of the AMA Guides.” 
    Id. (brackets omitted).
    That chapter, however, specifically disclaims any attempt at measuring impairment
    caused by pain and weakness. 
    Id. (quoting AMA
    Guides to the Evaluation of Permanent
    Impairment § 18.3b, p. 571 (5th ed. 2000)). When the commission consulted the correct portion
    of the AMA Guides, it found that a “‘formal pain-related impairment assessment’” should be
    performed to measure accurately this component of the impairment rating. 
    Id. (quoting AMA
    Guides § 18.3d, p. 573). Dr. Phillips never performed this formal assessment.
    Perplexed by these inconsistencies, the commission explained in detail why it discounted
    the hired expert’s opinion:
    [T]he AMA Guides instruct an examiner to include pain-related
    impairment, if found, in the overall impairment rating determined by
    the body or organ rating system. The examiner is not instructed, as
    Dr. Phillips did, to provide separate ratings for pain and loss of use in
    addition to impairment. Furthermore, Dr. Phillips did not explain
    why loss of function caused by pain could not be assessed through the
    body rating system provided in the AMA Guides, nor did he classify
    the claimant’s pain-related impairment or indicate whether it was
    ratable or unratable. While pain that results in “permanent partial” or
    “permanent total loss” is compensable, the Act does not compensate
    for pain alone.
    Even if the claimant’s pain caused some additional loss of use in this
    case, it is impossible to calculate the additional percentage to which
    she would be entitled. The reason for this is that Dr. Phillips gave the
    claimant an additional rating of eight percent impairment for the total
    of four different conditions, specifically pain, weakness, loss of
    function and loss of endurance, without indicating the percentage
    attributable to each of the four factors. Since Dr. Phillips did not
    break out from the eight percent the amount of loss of function, if any,
    caused by pain, versus the amount of the eight percent attributable to
    the other conditions, we have no basis for doing so. More
    problematic is Dr. Phillips’ inclusion of loss of function in the
    additional eight percent, since the very purpose of the initial base
    impairment rating was to address the loss of function. Thus it would
    appear that any additional amount included in the eight percent for
    loss of function would be duplicative as it would be included in the
    - 18 -
    base rating. The burden was on the claimant to prove the extent of
    her impairment, and since Dr. Phillips did not indicate that the
    claimant’s pain caused a loss of function, did not explain how his
    additional loss of function impairment was not duplicative, and did
    not break out how much the additional eight percent was attributable
    to each of the four factors he identified, the claimant has failed to
    prove entitlement to the additional eight percent or to any lesser
    additional amount.
    
    Id. (citation omitted).
    The deputy commissioner had also discounted the PPD rating offered by Dr. Phillips
    based on the commission’s previous experience with him.5 In Henderson v. Coffeewood Corr.
    Ctr., 2007 Va. Wrk. Comp. LEXIS 493 (Aug. 13, 2007), the commission rejected a rating
    Dr. Phillips had assigned to a different claimant because of similarly defective methodology.
    App. at 244. In that case, Dr. Phillips had “enhanced his rating by 6 percent, ‘because of pain,
    loss of function, and loss of endurance,’” but, as the deputy commissioner noted, “[i]t is
    improper to separately rate these items. While pain and loss of function may be considered to
    the extent that they inhibit function, they are not separately rated.” Henderson, 2007 Va. Wrk.
    Comp. LEXIS 493, at *14.
    In addition, the commission distinguished between a physical “impairment” (as the
    medical community uses the term) and a statutory “disability” (as Code § 65.2-503(A) & (D)
    uses the term). Correctly applying this distinction, the commission explained:
    5
    The commission adopted “as its own” the “Deputy Commissioner’s summary of the
    evidence,” 
    id. at 273,
    as well as “the Deputy Commissioner’s reasoning and analysis regarding
    the weight of the evidence in the record,” 
    id. at 278,
    which included extensive medical evidence.
    The deputy commissioner’s summary of the evidence not only considered the testimony by the
    claimant, but the summary began with the words: “The claimant testified . . . .” 
    Id. at 241.
    The
    summary thus not only considered the claimant’s testimony but framed the injurious event and
    the claimant’s subsequent impairment on the basis of her testimony. 
    Id. This is
    contrary to
    assertions by the claimant on appeal that the commission failed to consider or outright
    disregarded testimony by the claimant and her mother. See, e.g., Appellant’s Br. at 1, 2, 6, 14;
    see also Amicus Br. at 22, 23, 36.
    - 19 -
    The AMA Guides define impairment as “a loss, loss of use, or
    derangement of any body part, organ system or organ function.” 
    Id. at 2.
    Thus “impairment” as used in the AMA Guides is
    interchangeable with “loss” or “loss of use” as used in § 65.2-503.
    While the degree of impairment is to be considered in determining
    disability under the AMA Guides, the other factors relating to
    disability do not influence the impairment rating. “An impaired
    individual may or may not have a disability.” 
    Id. at 3,
    Table 1-1. It is
    “impairment” as defined by the AMA Guides which equates to the
    “loss” or “loss of the use” for which benefits are awarded under Va.
    Code § 65.2-503, not a claimant’s “disability,” “incapacity for work”
    or loss of wages. Compare AMA Guides, Section 1.2b, p. 8 with Va.
    Code § 65.2-503(A) & (D).
    Since it is compensation for the loss or loss of use of a body part that
    is awarded pursuant to § 65.2-503, not the claimant’s resulting
    inability to meet “personal, social, or occupational demands,” the
    statute does not implicate the social and economic factors identified in
    the dissent and represented by the AMA Guides’ definition for
    “disability”. While a claimant may receive benefits for either total or
    partial incapacity for work caused by a compensable injury, such
    benefits are available under §§ 65.2-500 or 65.2-502 and not under
    § 65.2-503. “Benefits awarded under Code § 65.2-503 constitute
    indemnity for the loss of or loss of use of a scheduled body member.
    Such benefits are not awarded for loss of earning capacity, as are
    benefits provided for under Code § 65.2-500.” Cross v. Newport
    News Shipbuilding & Dry Dock Co., 
    21 Va. App. 530
    , 535, 
    465 S.E.2d 598
    , 600 (1996) (citing 
    Williams, 1 Va. App. at 404
    , 339
    S.E.2d at 554)). See also LesCallett v. Rozansky & Kay Constr. Co.,
    
    23 Va. App. 404
    , 406, 
    477 S.E.2d 746
    , 747-48 (1996) (“Proof of the
    functional loss of the member, not industrial incapacity, is required
    for an award of benefits under Code § 65.2-503.”). Indeed, the
    claimant in the present case is receiving benefits under § 65.2-502 for
    loss of earning capacity, and has been receiving such benefits since
    February 22, 2011.
    Blakey, 2014 Va. Wrk. Comp. LEXIS 100 (emphasis added).
    The factual basis underlying these findings cannot be dismissed as arbitrary or irrational.
    Whether we would have reached the same decision if we were the factfinder is inconsequential.
    We have neither the institutional authority nor the professional competence to second-guess the
    commission on fact-intensive judgment calls. It bears repeating: “A finding of fact made by the
    - 20 -
    Commission, based on evidence deemed by it to be credible, is conclusive and binding on us and
    in the absence of fraud is not subject to review.” Williams v. Fuqua, 
    199 Va. 709
    , 713, 
    101 S.E.2d 562
    , 566 (1958) (emphasis added).
    The only question we must ask is whether, applying “the highest level of appellate
    deference,” we can justifiably disregard the statutory command to treat the commission’s
    factfinding as “conclusive and binding.” 
    Thorpe, 57 Va. App. at 623
    , 704 S.E.2d at 614 (internal
    quotation marks omitted). Whatever that basis might be, it cannot simply rest on our view of the
    “credibility of witnesses” or the “weigh[t] [of] the evidence” because “our personal view of the
    underlying factual debate plays no role in the task of appellate review.” 
    Id. (internal quotation
    marks omitted).
    The claimant acknowledges these principles but nonetheless points out, quite correctly,
    that we do not (and should not) defer to factfinders that predicate their findings on erroneous
    legal principles. In her multiple assignments of error, the claimant identifies two principles of
    law that the commission allegedly violated: First, a factfinder may attribute “great weight” to the
    medical opinions of a treating physician. Supra at 7; see also Appellant’s Br. at 2-3. Second, the
    commission’s PPD rating should not be a mechanical application of the AMA Guides. Supra at
    1-2; see also Appellant’s Br. at 3. Neither of these legal errors infects the commission’s
    factfinding in this case.
    With respect to the claimant’s first point, it is true the commission could have attributed
    great weight to the treating physician’s two-sentence, handwritten notation (even though based
    upon a mistaken assertion of unemployment) that stated he agreed with the hired expert’s PPD
    rating. But the commission, sitting as factfinder, chose not to do so — something every Virginia
    - 21 -
    case mentioning the treating-physician preference acknowledges as appropriate.6 It is easy to see
    why the commission came to this conclusion. When an expert’s rating “flows from an
    assumption that rests upon a faulty premise, . . . the commission may refuse, and often will be
    required to refuse, to attribute any weight to that opinion.” Sneed v. Morengo, Inc., 
    19 Va. App. 199
    , 205, 
    450 S.E.2d 167
    , 171 (1994) (citing Clinchfield Coal Co. v. Bowman, 
    229 Va. 249
    ,
    252, 
    329 S.E.2d 15
    , 16 (1985)). And, even though “a treating physician’s opinion normally is
    given great weight, such an opinion is not conclusive, especially when the opinion is not
    accompanied by any reasoning or explanation.” Thompson v. Brenco, Inc., 
    38 Va. App. 617
    ,
    623, 
    567 S.E.2d 580
    , 583 (2002) (emphasis added)). Both of these flaws damaged the credibility
    of the treating physician’s opinion in this case.7
    The cases cited by the claimant demonstrate how these principles work. Not one of them
    involves an appellate reversal of the commission’s denial of benefits coupled with an order
    6
    We have repeatedly emphasized that the treating-physician preference is not
    “necessarily conclusive,” Berglund 
    Chevrolet, 43 Va. App. at 753
    n.4, 601 S.E.2d at 698 
    n.4, and
    is always “subject to the commission’s consideration and weighing,” H. J. Holz & Son v.
    Dumas-Thayer, 
    37 Va. App. 645
    , 655, 
    561 S.E.2d 6
    , 11 (2002) (quoting Hungerford Mech.
    Corp. v. Hobson, 
    11 Va. App. 675
    , 677, 
    401 S.E.2d 213
    , 215 (1991)). Accord 1 Arthur Larson
    & Lex K. Larson, Larson’s Workers’ Compensation Law § 130.05 (Matthew Bender, rev. ed.
    2014) (“If the Commission chooses to believe one doctor whose opinion as to . . . the extent or
    duration of the claimant’s disability is contradicted by that of another — or even of six or seven
    or ten others — the court has no power to reverse its determination. This is true even if the
    minority doctor bases his or her opinion on a theory that is not accepted as sound by the majority
    of the medical profession. Although this theory is novel, unpopular, or iconoclastic, the
    probative force of the testimony is for the trier of fact, and is reviewable only for manifest
    error.”).
    7
    “With all due respect,” the majority contends, “the dissent spends much of its analysis
    discrediting Dr. Eberly’s and Dr. Phillips’ opinions . . . .” Supra at 9. Not so. It was the
    commission — the factfinder in this case — that discredited these opinions. I merely defer to the
    commission’s factfinding on these issues and restate the factual record in the light most favorable
    to the employer, the party that prevailed before the commission. The governing standard of
    appellate review requires no less.
    - 22 -
    directing the commission to grant benefits — which could occur only in situations in which the
    treating physician’s opinion was so irrefutable that no rational factfinder could find it
    unpersuasive.8 The claimant instead relies only on cases in which the commission had granted
    benefits, and we or the Virginia Supreme Court rejected the employer’s argument on appeal that
    the evidence from the treating physician failed to make a prima facie showing sufficient to
    support the award.
    With respect to the claimant’s second point, I agree that the commission cannot simply
    adopt the AMA Guides as a thoughtless substitute for the arduous task of weighing the evidence
    as a whole and coming to a reasoned decision on the permanent, partial disability rating. The
    commission, however, expressly acknowledged that it is not “limited by specific loss schedules
    or by the various published guides which determine incapacity,” Blakey, 2014 Va. Wrk. Comp.
    LEXIS 100 (internal quotation marks omitted), or in any way required to base a PPD rating “on a
    formal guide such as the AMA Guides,” 
    id. (text in
    parenthetical to case citation).
    To be sure, the only reason that the commission even addressed the AMA Guides is
    because the claimant’s hired expert relied exclusively upon them. As the commission made
    clear:
    8
    Factually sufficient findings (usually called a prima facie case) must be distinguished
    from legally incontestable findings (those an appellate court says that no rational factfinder could
    ignore). A prima facie case is the threshold level of evidentiary proof that is sufficient to permit
    a factfinder, if he is so persuaded, to grant the relief requested. Nothing in the concept of a
    prima facie case, however, requires that the factfinder actually be persuaded. In logical as well
    as legal terms, a prima facie case sets out a sufficient premise, but not a necessary one — that is,
    a plausible understanding of the evidence that the factfinder can accept, but not one that he must
    accept. See generally Cent. Va. Obstetrics & Gynecology Assocs. v. Whitfield, 
    42 Va. App. 264
    , 274-76, 
    590 S.E.2d 631
    , 637-38 (2004); Charles E. Friend & Kent Sinclair, The Law of
    Evidence in Virginia § 4-4, at 218 (7th ed. 2012); 9 John H. Wigmore, Evidence § 2494, at
    378-80 (Chadbourne rev. 1981) (footnotes omitted).
    - 23 -
    We agree that we are not bound by the AMA Guides in
    determining the degree of permanent impairment sustained by a
    claimant. However, Dr. Phillips indicates in his report that he
    based his rating upon the AMA Guides. Accordingly, in order to
    determine the weight to give to his rating, we must evaluate the
    rating in light of the AMA Guides.
    
    Id. For these
    reasons, the commission cannot be faulted for considering the AMA Guides in the
    context of this case.
    II.
    In sum, the claimant asks us to reweigh the medical record, to find by a preponderance of
    the evidence that her hired expert’s opinion is legally incontrovertible, and to order the
    commission to make a permanent, partial disability award based upon the expert’s 72% PPD
    rating. I see no legal basis for granting any of these requests.
    I thus respectfully dissent.
    - 24 -