LISA COOK, Claimant-Respondent v. MISSOURI HIGHWAY AND TRANSPORTATION COMMISSION, Employer-Appellant. , 500 S.W.3d 917 ( 2016 )


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  • LISA COOK,                                 )
    )
    Claimant-Respondent,        )
    v.                                         )       Nos. SD34290 & SD34291
    )       Filed: October 25, 2016
    MISSOURI HIGHWAY AND                       )
    TRANSPORTATION COMMISSION,                 )
    )
    Employer-Appellant.         )
    APPEAL FROM THE LABOR AND INDUSTRIAL RELATIONS COMMISSION
    AFFIRMED
    This is a consolidated appeal in which the Missouri Highway and Transportation
    Commission (Employer) appeals from two final awards of workers’ compensation benefits
    to Lisa Cook (Claimant) for carpal tunnel syndrome of her right and left wrists,
    respectively. The Labor and Industrial Relations Commission (Commission) determined
    that Claimant was permanently and partially disabled from her bilateral carpal tunnel
    syndrome as an occupational disease. The Commission also ordered Employer to pay for
    Claimant’s disfigurement after surgery, temporary total disability and past medical
    treatment. On appeal, Employer contends: (1) the Commission erred in determining that
    Claimant’s claims were not barred by the statute of limitations because she sustained an
    injury that was reasonably discoverable more than two years prior to the filing of her
    claims; (2) the Commission erred by deciding to credit the testimony of Claimant’s expert
    on medical causation because the expert’s opinion was based on incorrect knowledge of
    Claimant’s medical history; and (3) the Commission erroneously awarded past medical
    expenses because Claimant testified that her medical bills were satisfied by Employer.
    Finding no merit in any of these contentions, we affirm.
    Factual and Procedural Background
    At the time of the December 2014 hearing in this matter, Claimant was 55 years
    old. She had begun working for Employer in August 1997 when she was hired as a senior
    secretary in the traffic department, a position which she kept through 2011. Claimant’s
    duties required her to spend 85-90% of her time at the computer performing data-entry
    work. Claimant described her data-entry work as involving typing letters, preparing
    permits, revising/updating reports, entering employee time sheet data, preparing requests
    for money for permit applications, preparing monthly budget reports, recording vehicle
    mileage, making hotel reservations, notifying district offices of permit expirations,
    providing clerical support for the maintenance department, performing product research,
    and handling email communications for the office.          Her duties also included CPR
    instruction.
    Claimant testified that she was first seen by a medical provider for wrist problems
    in 2005 when she saw her personal physician, Dr. Colleen Hunter-Pearson. The doctor
    noted that Claimant’s work involved repetitive movements of the wrist and that Claimant
    suspected she had bilateral carpal tunnel syndrome. Dr. Hunter-Pearson referred Claimant
    to Dr. A. B. Chaudhari, who ordered a nerve conduction study that was performed at
    2
    Southeast Missouri Hospital in December 2005. The nerve conduction study revealed
    normal findings.     Dr. Chaudhari told Claimant that she did not have carpal tunnel
    syndrome. Neither Dr. Hunter-Pearson nor Dr. Chaudhari told Claimant that they had
    made any diagnosis of the condition of her wrists, and neither doctor indicated to her that
    her wrist problems were somehow related to her work. She was treated with anti-
    inflammatory medication and physical therapy for her neck.
    Claimant was next seen for problems with her wrists in September 2007 when
    Employer referred her to St. Francis Medical Center (SFMC). At the time, Claimant
    complained of wrist pain and swelling, which had been brought on by additional data-entry
    requirements that her supervisor had asked her to perform by entering old permits into the
    computer system. Dr. Glen Cooper at SFMC diagnosed Claimant with extensor tendinitis
    of wrists, right greater than left; tendinitis right elbow; and over-use tendinitis. She was
    treated with splints and anti-inflammatories. Claimant was seen at SFMC during four
    visits, the last of which was in November 2007, at which time her wrists were “pain free”
    and the swelling had resolved. During her 2007 treatment at SFMC, no doctor diagnosed
    Claimant with carpal tunnel syndrome.
    In late 2010 and early 2011, Claimant began to experience pain, numbness,
    weakness and burning in her wrists and hands, which caused her to wake up at night.
    During 2011, the problems with her wrists continued to worsen, with her symptoms greater
    in the right wrist than the left. In September 2011, Claimant filed a Field Injury Report for
    the injury to her right wrist.
    In October 2011, Employer sent Claimant to be examined by Dr. R. Evan Crandall.
    Dr. Crandall ordered another nerve conduction study performed on her right wrist only,
    3
    which was done by Dr. Daniel Phillips that same day. This second nerve conduction study
    was positive for moderately severe right carpal tunnel syndrome. Based on the results of
    this study, Dr. Crandall diagnosed Claimant with moderate to severe carpal tunnel
    syndrome for the right wrist only. Dr. Crandall was the first doctor who told Claimant that
    he diagnosed either of her wrists with carpal tunnel syndrome. Dr. Crandall indicated that
    Claimant’s work could be a risk factor for her right carpal tunnel syndrome, but opined that
    it was not a work-related injury. The doctor instead relied on Claimant’s medical risk
    factors related to carpal tunnel syndrome, including hypertension, age, gender and
    menopause.
    In November 2011, Claimant filed a Field Injury Report for injury to her left wrist.
    This was based on the fact that she was having symptoms in the left wrist similar to those
    she had had in the right wrist, specifically “numbness, tingling, burning sensation,
    weakness,” although the symptoms were not as severe. At that time, Employer had
    someone take a 45-minute video of Claimant at work, wherein she was asked to show
    examples of each type of work that she performed. The video did not record or reflect how
    much time she spent doing each task. In addition, Employer put a ghost key counter on
    Claimant’s keyboard from November 18 – December 9, 2011, to measure the number of
    key strokes she made. Claimant testified that counting the key strokes during that period
    was not an accurate reflection of her normal work requirements because: (1) the period
    included holidays; and (2) during that time, those she worked for were either out hunting
    or were not working on jobs because it was the winter season.
    4
    On January 10, 2012, Claimant filed separate claims for carpal tunnel syndrome in
    each wrist and arm. In early 2012, Employer denied any additional treatment or evaluation
    for problems with Claimant’s wrists.
    In October 2012, Claimant saw Dr. Victoria Kubik in Springfield, Missouri. Dr.
    Kubik noted that Claimant worked for Employer, does “a lot of typing and has been doing
    that for 15 years.” Dr. Kubik diagnosed Claimant with bilateral carpal tunnel syndrome
    and prescribed carpal tunnel release surgeries. Because Claimant was taking care of her
    father at that time and did not want to be away from him for an overnight stay in Springfield
    for the surgeries, she sought a physician in the St. Louis area for further treatment.
    In November 2012, Claimant was seen by Dr. Bruce Schlafly. He also diagnosed
    bilateral carpal tunnel syndrome and recommended surgical releases, which he performed
    for the right wrist in late November 2012 and for the left wrist in mid-December 2012.
    Claimant testified that she was off work from November 28 through December 5, 2012,
    after the first surgery, and from December 18 through January 2, 2013, after the second
    surgery. Claimant testified that the release surgeries provided her with substantial relief in
    both wrists by eliminating the numbness and greatly reducing the pain that she experienced.
    As of the date of the hearing, Claimant had occasional sharp, stabbing pain in her
    wrists when she was lifting and when her wrists were in an awkward position, along with
    numbness in her right forearm and decreased strength in both wrists. The carpal tunnel
    injuries affected Claimant’s ability to use her wrists in the following ways: (1) she
    experienced decreased strength and range of motion; (2) her wrists tired more easily; (3)
    she was limited in performing her duties as a CPR instructor for Employer; (4) her
    5
    gardening activities were limited; and (5) she was unable to pick up her grandchildren since
    the wrist injuries. Claimant has approximately 2˝ scars at each wrist from the surgeries.
    Dr. Schlafly’s deposition was received in evidence on Claimant’s behalf. Dr.
    Schlafly testified that Claimant’s repetitive work duties during her employment for
    Employer were the prevailing factor in causing her to develop bilateral carpal tunnel
    syndrome, which he treated with carpal tunnel release surgeries. Dr. Schlafly rated
    Claimant’s permanent disability from her work injuries at 25% of each hand at the wrist
    level. Dr. Schlafly further testified that his treatment of Claimant’s work injuries was
    reasonable and necessary and that the bills for the surgeries that he performed, from the
    various providers, were also reasonable and necessary.
    Dr. Crandall’s deposition was received on Employer’s behalf.           Dr. Crandall
    testified that he would not defer to the surgeon who performed the carpal tunnel release
    surgery on Claimant’s left wrist as to whether there was an impingement at the carpal
    tunnel. Dr. Crandall would not confirm a diagnosis of carpal tunnel syndrome in that wrist.
    He reiterated that the prevailing factor in causing carpal tunnel in her right wrist was a
    combination of Claimant’s medical risk factors. Dr. Crandall also testified that as of
    November 6, 2007, following her treatment for tendinitis, Claimant did not have any
    evidence of carpal tunnel syndrome in her wrists.
    After the hearing, the ALJ found that: (1) Claimant’s employment with Employer
    was the prevailing factor causing her bilateral carpal tunnel syndrome; (2) her claims were
    filed within the time allowed by law; and (3) she provided proper notice of the occupational
    diseases to Employer. The Employer was directed to pay Claimant previously incurred
    medical aid, temporary total disability payments, and 20% permanent partial disability plus
    6
    one week of disfigurement for each wrist. The Commission affirmed the ALJ’s awards for
    each wrist through supplemental opinions. Employer appealed both awards and filed a
    motion to consolidate, which this Court granted. Additional facts will be included below
    as we address Employer’s three points on appeal challenging the timeliness of the claims,
    medical causation and award of past medical expenses.
    Standard of Review
    We will review the findings and conclusions of the Commission and the ALJ as
    adopted by the Commission. Harness v. Southern Copyroll, Inc., 
    291 S.W.3d 299
    , 303
    (Mo. App. 2009). The scope of our review is set forth under § 287.495.1 RSMo (2000).1
    We review only questions of law and may modify, reverse, remand for rehearing, or set
    aside the award when the Commission acted without or beyond its power, the award was
    procured by fraud, the facts do not support the award, or the award is not supported by
    sufficient competent evidence in the record. 
    Id. “A court
    must examine the whole record
    to determine if it contains sufficient competent and substantial evidence to support the
    award, i.e., whether the award is contrary to the overwhelming weight of the evidence.”
    Hampton v. Big Boy Steel Erection, 
    121 S.W.3d 220
    , 222-23 (Mo. banc 2003); see also
    MO. CONST. art. V, § 18.2 This is because an award “contrary to the overwhelming weight
    of the evidence is, in context, not supported by competent and substantial evidence.”
    1
    Unless otherwise specified, all statutory references are to RSMo Cum. Supp.
    (2011).
    2
    We note that some cases cited herein were overruled on other grounds by
    
    Hampton, 121 S.W.3d at 224-32
    . Because these cases support other principles of law not
    affected by the Hampton ruling, no further acknowledgment of Hampton’s effect on these
    cases will be recited.
    7
    
    Hampton, 121 S.W.3d at 223
    . Such an award will be rare. Id.; see Roberts v. Missouri
    Highway & Transp. Comm’n, 
    222 S.W.3d 322
    , 331 (Mo. App. 2007).
    We defer to the Commission’s factual findings and recognize that it is the
    Commission’s function to determine the credibility of witnesses and the weight to be given
    to their testimony. Underwood v. High Road Indus., LLC, 
    369 S.W.3d 59
    , 66 (Mo. App.
    2012).     “[C]onflicting medical theories present a credibility determination for the
    Commission to make.” Armstrong v. Tetra Pak, Inc., 
    391 S.W.3d 466
    , 470 (Mo. App.
    2012). Therefore, the Commission’s decision as to which of the various medical experts
    to believe is binding on this Court. 
    Id. at 471.
    We will not substitute our judgment on
    issues of fact where the Commission acts within its powers, even if we would arrive at a
    different initial conclusion. 
    Underwood, 369 S.W.3d at 66
    ; see Hornbeck v. Spectra
    Painting, Inc., 
    370 S.W.3d 624
    , 629 (Mo. banc 2012) (when evidence would warrant either
    of two opposed findings, the reviewing court is bound by the Commission’s findings; it is
    irrelevant that there is supportive evidence for the contrary finding). We review questions
    of law de novo. 
    Underwood, 369 S.W.3d at 66
    .
    Discussion and Decision
    Point 1
    Employer’s first point maintains that Claimant’s claims are barred by the statute of
    limitations. Section 287.430 generally requires a claim for workers’ compensation to be
    filed “within two years after the date of injury[.]”         § 287.430 RSMo (2000); see
    § 287.020.3(1) (defining “injury” to be “an injury which has arisen out of and in the course
    of employment”). “An injury due to repetitive motion is recognized as an occupational
    8
    disease for purposes of this chapter.” § 287.067.3.3 In cases of occupational disease, the
    statute of limitations shall not begin to run “until it becomes reasonably discoverable and
    apparent that an injury has been sustained related to such exposure[.]” § 287.063.3. The
    question as to when an “injury has been sustained related to such exposure” of repetitive
    motion becomes “reasonably discoverable and apparent” is a question of fact to be
    determined by the Commission. See Lawrence v. Anheuser Busch Companies, Inc., 
    310 S.W.3d 248
    , 250-51 (Mo. App. 2010).
    Here, with respect to each wrist, the Commission found “as a factual matter that it
    was first reasonably discoverable and apparent to employee that she’d suffered … carpal
    tunnel syndrome arising out of and in the course of employment related to exposure to
    repetitive upper extremity duties”: (1) “as of October 12, 2011, when Dr. Crandall
    [Employer’s expert] made the diagnosis of right carpal tunnel syndrome” and (2) “as of
    October 25, 2012 when Dr. Victoria Kubik first made the diagnosis of left carpal tunnel
    syndrome” (bold emphasis added). Because Claimant filed claims for both wrists on
    January 10, 2012, the Commission concluded neither claim is barred by the statute of
    limitations.
    The Commission also addressed Employer’s factual arguments that the statute of
    limitations began to run as early as 2005, when Claimant suspected she had bilateral carpal
    tunnel syndrome, or in 2007, when Claimant complained of wrist pain following a data-
    entry project. With respect to 2005, the Commission rejected Employer’s argument by:
    (1) relying on Dr. Chaudhari’s December 2005 nerve conduction study revealing normal
    3
    The term “occupational disease” is “defined to mean, unless a different meaning
    is clearly indicated by the context, an identifiable disease arising with or without human
    fault out of and in the course of the employment.” § 287.067.1.
    9
    findings; and (2) expressly finding that Claimant “credibly testified … that Dr. Chaudhari
    told her that these tests were negative for carpal tunnel syndrome[.]” The Commission
    similarly rejected Employer’s argument that the statute of limitations began to run in 2007,
    explaining:    (1) “[Employer’s] own authorized treating physician, Dr. Glen Cooper,
    diagnosed [Claimant’s] condition in 2007 as bilateral extensor tendonitis of the wrists with
    tendonitis of the right elbow, not carpal tunnel syndrome” (italics in original); and (2)
    “[Employer’s] own evaluating expert, Dr. Evan Crandall, [testified] that there was no
    evidence [Claimant] was suffering from carpal tunnel syndrome in 2007.”4                The
    Commission therefore concluded that it was not “reasonably discoverable and apparent” in
    2005 or 2007 that Claimant had “suffered carpal tunnel syndrome arising out of and in the
    course of employment related to her exposure to repetitive duties while working for
    [E]mployer.”
    Employer’s point contends the Commission erred, as a matter of law, in finding
    that Claimant’s claims were not barred by the statute of limitations because she sustained
    an injury that was reasonably discoverable more than two years prior to the 2012 filing of
    her claims, namely in 2005 and 2007. Employer argues that “the Commission misapplied
    section 287.063.3” by: (1) relying on a “medical diagnosis from a doctor without regard
    to other evidence to the contrary”; and (2) making “a finding based on Claimant’s
    subjective knowledge rather than the appropriate objective standard.” We find no merit in
    either of these arguments.
    4
    In a footnote, the Commission further chastised Employer stating: “Employer’s
    failure to identify evidence on the record which squarely refutes its arguments is troubling,
    to say the least, and calls into question the candor with which [E]mployer approaches this
    tribunal.”
    10
    Employer’s First Argument
    Employer’s first argument, as we understand it, is essentially that the Commission
    misapplied § 287.063.3 by relying on a medical diagnosis when that statute does not
    require that a diagnosis be made in order to trigger the statute of limitations. Employer’s
    first argument has three prongs: (1) the 2005 legislative changes to § 287.063.3 were
    “clearly intended to reduce the requisite knowledge to begin the running of the statute of
    limitations”; (2) according to 
    Lawrence, 310 S.W.3d at 249
    , the statute of limitations may
    begin running for an occupational disease before the employee has a physician’s diagnosis;
    and (3) according to Miller v. U.S. Airways Group, Inc., 
    316 S.W.3d 462
    (Mo. App. 2010),
    an employee’s carpal tunnel syndrome apparent several years prior renders claims filed
    thereafter duplicative and impermissible. We will address each prong of this argument in
    turn.
    The first prong of Employer’s argument involves a 2005 amendment to
    § 287.063.3. To address this argument, some background is required. In 1959, the
    legislature adopted the following statute of limitations for an occupational disease claim:
    The statute of limitation referred to in Section 487.430 shall not begin to
    run in cases of occupational disease until it becomes reasonably
    discoverable and apparent that a compensable injury has been sustained,
    except that in cases of loss of hearing due to industrial noise said limitation
    shall not begin to run until the employee is eligible to file a claim as
    hereinafter provided in section 287.202.
    § 287.201.9, 1959 Mo. Laws S.B. 167 p. 13 (italics added). This subsection of the statute
    was construed to mean that:
    In latent injury or latent occupational disease the statute of limitations
    commences to run from the time it becomes reasonably discoverable and
    apparent to the employee that he has sustained a compensable injury. The
    injury is reasonably discoverable and apparent when the employee loses
    time from his work or has to seek medical advice as a result of his injury.
    11
    Enyard v. Consol. Underwriters, 
    390 S.W.2d 417
    , 422 (Mo. App. 1965) (italics added).5
    This statutory language codified the rule that had been adopted in prior Missouri appellate
    decisions. 
    Id. at 431.
    In 1997, the relevant language had been moved to § 287.063.3.
    Wiele v. Nat’l Super Markets, Inc., 
    948 S.W.2d 142
    (Mo. App. 1997), was a carpal tunnel
    syndrome case which addressed that subsection of the statute in the following fashion:
    Carpal tunnel syndrome is a known occupational disease. Weniger v.
    Pulitzer Pub. Co., 
    860 S.W.2d 359
    , 360 (Mo. App. 1993). The statute of
    limitations does not begin to run on occupational disease claims “until it
    becomes reasonably discoverable and apparent that a compensable injury
    has been sustained.” § 287.063.3 RSMo 1986. In construing this statute
    our courts have long held that mere awareness on the part of the employee
    of the presence of a work-related illness is not, in and of itself, sufficient
    knowledge of a compensable injury. Mann v. Supreme Exp., 
    851 S.W.2d 690
    , 692 (Mo. App. 1993); Sellers v. Trans World Airlines, Inc., 
    752 S.W.2d 413
    , 416 (Mo. App. 1988); Moore v. Carter Carb. Div. ACF Industries, 
    628 S.W.2d 936
    , 941 (Mo.App.1982); 29 Missouri Practice, Workers’
    Compensation § 4.44. Generally, such a condition becomes apparent when
    an employee is medically advised that he or she can no longer physically
    continue in the work environment. 
    Mann, 851 S.W.2d at 692
    ; Thomas v.
    Becker Metals Corp., 
    805 S.W.2d 271
    , 273 (Mo. App. 1991); 
    Sellers, 752 S.W.2d at 417
    ; 
    Moore, 628 S.W.2d at 941
    . A compensable injury occurs
    when the disease causes the employee to become disabled and unable to
    work. Prater v. Thorngate, Ltd., 
    761 S.W.2d 226
    , 228 (Mo. App. 1988).
    
    Id. at 146.
    In 2005, the legislature deleted “compensable” and added language to read
    “reasonably discoverable and apparent that an injury has been sustained related to such
    exposure.” 2005 Mo. Laws 911 (italics added). According to Employer, the sole reason
    for the change was to focus the inquiry on when the employee’s condition was reasonably
    discoverable and apparent without regard to whether the employee had the benefit of a
    5
    The provisions of this subsection were renumbered as § 287.063.6. See § 287.063
    RSMo (1959); 
    Enyard, 390 S.W.2d at 431
    . Section 287.202 was changed to § 287.197.
    See § 287.197 RSMo (1959).
    12
    diagnostician’s opinion that the employee had sustained an injury related to work exposure.
    We disagree. We believe the purpose of this amendment was simply to change the rule
    applied in Wiele and other occupational disease cases that an employee’s awareness of the
    presence of a work-related illness was not sufficient to start the running of the statute of
    limitations. See 
    Wiele, 948 S.W.2d at 146
    ; see also Garrone v. Treasurer of State of
    Missouri, 
    157 S.W.3d 237
    , 242 (Mo. App. 2004) (“occupational disease does not become
    a compensable injury until the disease causes the employee to become disabled by affecting
    the employee’s ability to perform his ordinary tasks and harming his earning ability”).
    After this 2005 amendment, an occupational disease that is reasonably discoverable and
    apparent to the employee, and related to work exposure, will start the running of the statute
    of limitations. The Commission concluded, and we agree, that “the legislature in 2005
    simply made clear that the apparent work-relatedness of an injury must be our paramount
    concern in answering the question when the statute of limitations begins to run in
    occupational disease cases.”
    Based upon our determination of the purpose of the 2005 amendment to
    § 287.063.3, the first prong of Employer’s argument lacks merit. Although Claimant
    suspected she had carpal tunnel syndrome in 2005, she tested negative for the syndrome
    and was told she did not have carpal tunnel syndrome at that time. The Commission found
    Claimant’s testimony credible, and we defer to that determination. 
    Underwood, 369 S.W.3d at 66
    ; see also Bock v. City of Columbia, 
    274 S.W.3d 555
    , 562 (Mo. App. 2008)
    (“conditions that have been found to be outside the realm of lay understanding include
    carpal tunnel syndrome”); see, e.g., Decker v. Square D Co., 
    974 S.W.2d 667
    , 669 (Mo.
    App. 1998) (when “a worker seeks compensation for carpal tunnel syndrome, he or she
    13
    must submit a medical expert who can establish a probability that working conditions
    caused the disease”). Further, both of Employer’s experts, Dr. Cooper and Dr. Crandall,
    opined that Claimant did not have carpal tunnel syndrome in 2007. If it was not reasonably
    discoverable and apparent to trained medical experts that Claimant suffered from carpal
    tunnel syndrome, it would not have been reasonably discoverable and apparent to her. It
    was not until 2011 that Dr. Crandall first diagnosed Claimant with carpal tunnel syndrome,
    based on the second nerve conduction study that was positive for moderately severe right
    carpal tunnel syndrome at that time.6 Similarly, the first time Claimant was told that she
    had left carpal tunnel syndrome was via Dr. Kubik’s diagnosis in 2012. We therefore
    conclude the Commission did not misapply § 287.063.3 by relying on the medical
    diagnoses in this case to determine that Claimant’s two claims were not barred by the
    statute of limitations.
    The second prong of Employer’s argument, relying on Lawrence, fares no better.
    In Lawrence, the employee developed ringing in her ears and other symptoms after being
    exposed to extended periods of loud noise at work. She did not know what was causing
    her ears to ring and then read several articles about tinnitus. 
    Lawrence, 310 S.W.3d at 249
    .
    She was moved to a quieter work location and was diagnosed with tinnitus over twenty
    years later. 
    Id. The employee
    argued that the statute of limitations began running when
    she was diagnosed; the employer relied on the date twenty years earlier when she figured
    out that she had tinnitus. 
    Id. at 251-52.
    Because the Commission had not made a factual
    6
    Even at that point, however, Claimant was told by Dr. Crandall that Claimant’s
    right carpal tunnel syndrome was not work-related, and was instead caused by other
    medical risk factors. Therefore, it would not have been reasonably discoverable and
    apparent to Claimant that her carpal tunnel syndrome was caused by work-related
    exposure.
    14
    finding on the issue, the eastern district of this Court merely remanded for the Commission
    to do so. 
    Id. at 252.
    Employer relies on Lawrence to argue that Claimant should have
    filed her claims in 2005 based solely on her suspicion that she had bilateral carpal tunnel
    syndrome, or in 2007 following the data-entry project. We find no merit in either argument.
    Lawrence is factually distinguishable because: (1) Claimant tested negative for carpal
    tunnel syndrome in 2005; (2) she was given a different diagnosis of tendonitis in 2007, and
    her symptoms resolved after a short course of treatment; and (3) Claimant was told that she
    did not have carpal tunnel syndrome by physicians in 2005 and 2007.            Placing an
    obligation on Claimant to self-diagnose and file a workers’ compensation claim in either
    of those years is not supported by the plain language of § 287.063.3 because it would not
    have been reasonably discoverable and apparent to Claimant that she suffered from work-
    related carpal tunnel syndrome at that time.7 Given the circumstances present in this case,
    Employer’s reliance on Lawrence is misplaced.           Therefore, the second prong of
    Employer’s argument fails.
    The third prong of Employer’s argument, relying on Miller, is also misplaced. In
    
    Miller, 316 S.W.3d at 464
    , the western district of this Court upheld the Commission’s
    factual finding that one of the employee’s claims for carpal tunnel syndrome with a 2007
    7
    As the Commission explained:
    On the one hand, employer expects us to elevate employee’s lay opinion
    regarding the proper diagnosis and work-relatedness of her upper extremity
    problems as sufficient to obligate her to file a claim for compensation,
    notwithstanding the unanimous opinions from the treating and evaluating
    physicians that she did not have carpal tunnel syndrome in 2005 and 2007.
    On the other, employer asks us to credit the opinion from Dr. Crandall that
    employee’s carpal tunnel syndrome is, in any event, the product of a number
    of non-work-related risk factors.
    15
    date of injury was duplicative of another carpal tunnel claim that she had filed with a 2004
    date. 
    Id. Both the
    employee’s claims “gave an identical description” of her injury, and the
    employer offered medical testimony to support a finding that the 2007 claim did not set out
    a new injury. 
    Id. at 464-66.
    After concluding that the duplicative claim should be
    dismissed without prejudice, the Court ordered the Commission to consolidate the other
    claims and address the case on the merits. 
    Id. at 466-67.
    Employer relies on Miller to argue Claimant’s two 2012 claims “were duplicative
    of the 2007 claim” and “are barred by the applicable statute of limitations as not filed
    timely[.]” We find no merit in this argument because Miller is distinguishable. Although
    Employer’s argument refers to “the 2007 claim[,]” Employer concedes that “Claimant has
    never filed a Claim for Compensation” in 2007 or in 2005. We reject Employer’s specious
    argument that the two claims Claimant did file are duplicative of a claim that she did not
    file. Accordingly, the third prong of Employer’s first argument fails.
    Employer’s Second Argument
    The second argument made by Employer is that the Commission misapplied
    § 287.063.3 by applying a “subjective” rather than “the appropriate objective standard” to
    decide when the occupational disease was reasonably discoverable and apparent.
    According to Employer, that misapplication of law is found in the Commission’s reference
    to Claimant when explaining its findings, i.e., whether the occupational disease was
    “reasonably discoverable and apparent to employee that she’d suffered … carpal tunnel
    syndrome” (italics added). We disagree.
    As explained above, the statutory language in § 287.063.3 requiring an
    occupational disease to be “reasonably discoverable and apparent” has long been
    16
    interpreted to mean that the running of the statute of limitations commences “[i]f it
    becomes reasonably discoverable and apparent to the employee that he needs medical or
    surgical treatment ….” Williams v. S. N. Long Warehouse Co., 
    426 S.W.2d 725
    , 734 (Mo.
    App. 1968) (italics added); see also 
    Enyard, 390 S.W.2d at 431
    (affirming the
    Commission’s finding that the claim was filed within one year of the time it became
    reasonably discoverable and apparent to claimant that he had sustained a compensable
    injury). Although the legislature made many revisions to Chapter 287 in 2005, no change
    was made to the “reasonably discoverable and apparent” language in § 287.063.3. We
    presume the legislature was aware of and adopted this settled judicial construction by
    reenacting § 287.063.3 with this language included. See Flowers v. City of Campbell, 
    384 S.W.3d 305
    , 312 (Mo. App. 2012). The western district of this Court has applied §
    287.063.3 in the same way as previous cases. See, e.g., Smith v. Capital Region Med. Ctr.,
    
    412 S.W.3d 252
    , 262 n.9 (Mo. App. 2013) (holding that “the evidence in the record
    supported the Commission’s determination that Smith’s claim did not accrue until 2005,
    when he was informed by his physician of a possible connection between his hepatitis C
    and his employment with Capital Region”). Accordingly, Employer’s second argument
    fails.
    In sum, there is no merit to any of Employer’s various arguments that the
    Commission “misapplied section 287.063.3[.]” Therefore, Point 1 is denied.
    Point 2
    Employer’s second point challenges the Commission’s findings on medical
    causation. “An occupational disease due to repetitive motion is compensable only if the
    occupational exposure was the prevailing factor in causing both the resulting medical
    17
    condition and disability.” § 287.067.3. “The ‘prevailing factor’ is defined to be the
    primary factor, in relation to any other factor, causing both the resulting medical condition
    and disability.” 
    Id. (bold emphasis
    in original). Here, the Commission credited Dr.
    Schlafly’s opinion as to causation because:
    Dr. Schlafly persuasively testified (as we so find) that [Claimant’s] typing
    duties involved repetitive flexor tendon movements from repetitive motion
    of the fingers, which in turn created a process of gradual inflammation
    around the flexor tendons in the area of the median nerve and the carpal
    tunnel. We find that [Claimant’s] occupational exposure to this gradual
    inflammation process is the prevailing factor causing [Claimant] to suffer
    the resulting medical condition of [right and left] carpal tunnel syndrome.
    Employer’s point contends the Commission erred in making the above finding “because
    the facts found by the Commission do not support the award[.]” According to Employer,
    “the Commission erroneously found that Dr. Schlafly’s testimony was more persuasive on
    causation” because his opinions “were based upon a large data entry project that occurred
    in 2011 when the evidence clearly shows, and the Commission found, that the data entry
    project occurred in 2007.” We disagree.
    While Dr. Schlafly mistakenly referred in his deposition to the data-entry project
    occurring in 2011 instead of 2007, that particular project was not the only basis for his
    opinion that Claimant’s carpal tunnel syndrome was work-related. Dr. Schlafly also relied
    on Claimant’s normal work duties, which involved repetitive motion of the hands in the
    form of typing throughout most of the work day. The Commission credited Claimant’s
    testimony that her normal work duties involved keyboarding 85-90% of each day and that
    she was exposed for 14 years to repetitive hand-intensive work duties. Dr. Schlafly also
    opined, as the Commission found, that it was Claimant’s “occupational exposure to this
    gradual inflammation process” that formed the basis for Dr. Schlafly’s diagnosis of
    18
    bilateral carpal tunnel syndrome in 2012. His opinion is supported, in part, by Dr. Cooper’s
    diagnosis of tendinitis in 2007 and Dr. Crandall’s testimony that Claimant had no evidence
    of carpal tunnel syndrome in 2007. What Employer is essentially arguing here is that the
    Commission should have found Dr. Crandall more credible on the issue of causation. It is
    well settled, however, “[t]he weighing of conflicting medical causation testimony lies
    within the Commission’s sole discretion and cannot be reviewed by this court.” Proffer v.
    Fed. Mogul Corp., 
    341 S.W.3d 184
    , 187-88 (Mo. App. 2011); see 
    Armstrong, 391 S.W.3d at 470-71
    (the Commission’s decision as to which of the various medical experts to believe
    is binding on this Court).8 Accordingly, Point 2 is denied.
    Point 3
    Employer’s third point challenges the Commission’s award of past medical
    expenses pursuant to § 287.140. This statute requires an employer to provide an employee
    with such care “as may reasonably be required after the injury or disability, to cure and
    relieve from the effects of the injury.” § 287.140.1; Maness v. City of De Soto, 
    421 S.W.3d 532
    , 544 (Mo. App. 2014).9 A sufficient factual basis exists for the Commission to award
    compensation for past medical expenses when: (1) the claimant introduces his or her
    8
    Employer also argues that Commission’s causation findings are not supported by
    sufficient competent evidence in the record and are against the weight of the evidence.
    Both arguments are predicated upon the premise that the Commission should not have
    relied upon Dr. Schafly’s opinion on causation, which lacks merit for the reasons set out
    above.
    9
    Further, “[i]f the employer is on notice that the claimant needs treatment, and the
    employer fails or refuses to provide it, the claimant may select his or her own medical
    provider and hold the employer liable for the costs thereof.” Martin v. Town & Country
    Supermarkets, 
    220 S.W.3d 836
    , 844 (Mo. App. 2007); Abt v. Mississippi Lime Co., 
    420 S.W.3d 689
    , 704 (Mo. App. 2014).
    19
    medical bills into evidence; (2) the claimant testifies that the bills are related to and the
    product of his or her work injury; and (3) “the bills relate to the professional services
    rendered as shown by the medical records in evidence.” Martin v. Mid-America Farm
    Lines, Inc., 
    769 S.W.2d 105
    , 111-12 (Mo. banc 1989), superseded by statute on other
    grounds by § 287.160.3; 
    Maness, 421 S.W.3d at 544
    . When these three elements are met,
    the burden shifts to the employer to prove some reason the award of past medical expenses
    is inappropriate. See Farmer-Cummings v. Pers. Pool of Platte County, 
    110 S.W.3d 818
    ,
    823 (Mo. banc 2003) (such as employee’s liability for the medical expenses was
    extinguished, or that liability does not otherwise fall within other statutory provisions);
    § 287.270 (allowing an employer to receive a credit for medical bills paid by the
    employer).10 The following additional facts are relevant to this point.
    To meet Claimant’s burden, she provided her bills, the medical records reflecting
    the treatment giving rise to the bills, and testimony identifying the bills and establishing
    that she received them as a result of the disputed treatment. The Commission credited Dr.
    Schlafly on the issue of past medical expenses and concluded that the “disputed treatment
    was reasonably required to cure and relieve from the effects of [Complaint’s] compensable
    work injury of [right and left] carpal tunnel syndrome.” The Commission then noted the
    10
    Section 287.270 RSMo (2000) provides:
    No savings or insurance of the injured employee, nor any benefits derived
    from any other source than the employer or the employer’s insurer for
    liability under this chapter, shall be considered in determining the
    compensation due hereunder; except as provided in subsection 3 of section
    287.170, and employers of professional athletes under contract shall be
    entitled to full credit for wages or benefits paid to the employee after the
    injury including medical, surgical or hospital benefits paid to or for the
    employee or his dependents on account of the injury, disability, or death,
    pursuant to the provisions of the contract.
    20
    burden properly shifted to Employer to demonstrate that Claimant was not required to pay
    the billed amounts, that her liability for the disputed amounts was extinguished, or that the
    reason the liability was extinguished does not otherwise fall within the provisions of
    § 287.270.
    To meet Employer’s burden, Employer relied on Claimant’s testimony, elicited on
    cross-examination. At that time, Claimant testified that her insurance through Employer
    paid for all of her medical expenses and “to her knowledge” those bills were “completely
    satisfied.” Claimant also testified, however, that she was unaware of whether she would
    be asked for reimbursement of these charges in the event the case is deemed compensable
    under workers’ compensation.       The Commission relied on this latter testimony and
    specifically found that, based on Claimant’s lack of training or expertise in these matters,
    the Commission could not rely on her testimony alone that her liability for past medical
    expenses has been extinguished:
    There is no showing on this record that [Claimant] has any particular
    training or expertise with regard to the topics of medical billing, insurance
    law, or an employee’s liability for past medical expenses incurred in the
    context of a disputed workers’ compensation case. Employer did not
    provide any other evidence to demonstrate that [Claimant’s] liability for her
    past medical bills has been extinguished, such as testimony from billing
    representatives with the healthcare providers or a representative from
    [Claimant’s] insurance program with [E]mployer. After careful
    consideration, we do not deem [Claimant’s] testimony to persuasively
    support a finding that her liability for her past medical expenses has been
    extinguished.
    We defer to this factual finding. Employer also argued that, because it is self-insured for
    workers’ compensation purposes, any payment by Claimant’s health insurance through
    Employer must be deemed a payment directly from Employer for purposes of § 287.270.
    The Commission rejected this argument because:
    21
    [T]he fact that [E]mployer is self-insured for workers’ compensation
    purposes reveals nothing with regard to the nature of [Claimant’s] health
    insurance with [E]mployer. Employer did not provide any evidence with
    regard to that insurance policy, and thus failed to establish that such
    insurance is fully funded by [E]mployer and does not involve any co-pays,
    co-insurance, deductibles, or monthly premiums payable by [Claimant]. In
    the absence of any such evidence, we are not persuaded to make a finding
    that payments from [Claimant’s] insurance with [E]mployer constituted
    payments directly from [E]mployer for purposes of § 287.270.
    After finding that Claimant met her burden, the Commission found that Employer failed to
    meet its burden and awarded Claimant past medical expenses.
    Employer’s point contends the Commission erred by finding Employer liable for
    past medical expenses “because the facts found by the Commission do not support the
    award[.]” According to Employer, the Commission erred in finding that “Employer failed
    to meet its burden of (1) demonstrating that Claimant’s liability for her past medical
    expenses has been reduced or extinguished in any amount, and (2) showing that the reason
    Claimant’s liability was extinguished does not otherwise fall within the provisions of
    § 287.270” because “the uncontroverted evidence established that Claimant’s prior
    medical bills were satisfied by her Employer and Claimant presented no evidence that she
    may be responsible for such medical charges.” We disagree.
    Employer’s point does not argue the Commission erred in finding Claimant met her
    burden, but instead asserts error only in finding Employer failed to meet its burden to prove
    some reason the award of past medical expenses is inappropriate. See 
    Farmer-Cummings, 110 S.W.3d at 822-23
    ; see also 
    Maness, 421 S.W.3d at 544
    . Generally, if a medical
    provider has allowed write-offs and fee reductions for its own purposes and the employee
    is not legally subject to further liability, then the employee is not entitled to a windfall
    recovery. 
    Farmer-Cummings, 110 S.W.3d at 822-23
    . On the other hand, if the employee
    22
    “remains personally liable for any of the reductions, the employee is entitled to recover
    them as “fees and charges” pursuant to § 287.140. 
    Id. The employer
    carries the burden of
    proving by a preponderance of the evidence that it is entitled to credit for write-offs and
    fee reductions. Id.; see 
    Proffer, 341 S.W.3d at 190
    .
    On appeal, Employer relies exclusively on Claimant’s cross-examination testimony
    that Employer paid for all of her medical expenses, and “to her knowledge” those bills
    were “completely satisfied.” Contrary to Employer’s argument, it was not Claimant’s
    burden to present “evidence that she may be responsible for such medical charges” – it was
    Employer’s burden to prove she was not. See 
    Farmer-Cummings, 110 S.W.3d at 822-23
    ;
    see, e.g., 
    Proffer, 341 S.W.3d at 190
    (to seek a reduction for write-downs, write-offs, or
    adjustments, employer had to show that claimant had no reimbursement obligation or other
    liability to pay such sums). Employer failed to present any of its own evidence to
    demonstrate that liability for Claimant’s past medical bills had been extinguished or that
    payments from Claimant’s insurance with Employer constituted payments directly from
    Employer for purposes of § 287.270. Review of the record reveals no basis to reverse the
    Commission’s finding that Employer failed to carry its burden. “As the party claiming a
    credit, Employer carried the burden of proving it.” 
    Proffer, 341 S.W.3d at 190
    . Point 3 is
    denied.
    The awards allowing workers’ compensation benefits for Claimant’s right and left
    carpal tunnel syndrome, respectively, are affirmed.
    JEFFREY W. BATES, P.J. – OPINION AUTHOR
    DON E. BURRELL, J. – CONCUR
    MARY W. SHEFFIELD, C.J. – CONCUR
    23