Patient Advocates of Texas and Allen J. Meril, M.D. v. Texas Workers Compensation Commission Leonard Riley, Executive Director And State of Texas ( 2002 )


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  •           TEXAS COURT OF APPEALS, THIRD DISTRICT, AT AUSTIN
    NO. 03-01-00215-CV
    Patient Advocates of Texas and Allen J. Meril, M.D., Appellants
    v.
    Texas Workers Compensation Commission; Leonard Riley, Executive Director;
    and State of Texas, Appellees
    FROM THE DISTRICT COURT OF TRAVIS COUNTY, 353RD JUDICIAL DISTRICT
    NO. 96-03744, HONORABLE MARGARET A. COOPER, JUDGE PRESIDING
    Patient Advocates of Texas and Allen J. Meril, M.D. (collectively AAdvocates@) brought
    suit against the Texas Workers Compensation Commission, Leonard Riley, Executive Director, and the
    State of Texas (collectively Athe Commission@) challenging the validity and enforcement of a series of rules
    promulgated by the Commission. After a number of summary judgment motions were filed by both parties
    over a period exceeding four years, the trial court rendered a final judgment denying all of Advocates=
    claims and granting judgement for the Commission. Advocates raises six issues in this appeal challenging the
    Commission=s rules on both procedural and substantive grounds. We will affirm in part and reverse and
    render in part.
    BACKGROUND
    In 1989, the Legislature enacted a new Workers= Compensation Act (hereinafter the AAct@)
    restructuring the workers= compensation law in Texas.1 The new Act replaced the old system that had
    become increasingly expensive and was suffering from a loss of public confidence. Medical costs for
    injured workers within the workers= compensation system began increasing at a much higher rate than
    similar costs outside the system. These increases helped cause workers= compensation insurance premiums
    to more than double between 1984 and 1988. See Texas Workers= Compensation Comm=n v. Garcia,
    
    893 S.W.2d 504
    , 512 (Tex. 1994).
    1
    The new Act, initially located in articles 8308-1.01 through 8308-11.10 of the Texas
    Revised Civil Statutes Annotated, was codified in September 1993 and now appears in the Labor Code.
    See Tex. Lab. Code Ann. '' 401.001-506.002 (West 1996 & Supp. 2002). For convenience, we refer
    to the Labor Code.
    2
    In response to these mounting costs, the Legislature gave the newly created Commission
    sweeping new powers. One of these powers was in the area of medical costs and reimbursement. See
    Tex. Lab. Code Ann. ' 413.011 (West 1996).2 Pursuant to that section, the Legislature directed the
    Commission to set new guidelines for reimbursements to health-care providers treating injured workers. 
    Id. ' 413.011(a)(1).
    In so doing, the Legislature assigned the Commission the daunting task of designing a
    guideline that provides fair and reasonable reimbursements, ensures the quality of medical care, and
    simultaneously achieves effective medical cost control. 
    Id. ' 413.011(b).
    2
    Section 413.011 reads as follows:
    (a) The commission by rule shall establish medical policies and guidelines relating to:
    (1) fees charged or paid for medical services for employees who suffer
    compensable injuries, including guidelines relating to payment of fees for
    specific medical treatments or services;
    (2) use of medical services by employees who suffer compensable injuries; and
    (3) fees charged or paid for providing expert testimony relating to an issue
    arising under this subtitle.
    (b) Guidelines for medical services fees must be fair and reasonable and designed to
    ensure the quality of medical care and to achieve effective medical cost control.
    The guidelines may not provide for payment of a fee in excess of the fee charged
    for similar treatment of an injured individual of an equivalent standard of living and
    paid by that individual or by someone acting on that individual=s behalf. The
    commission shall consider the increased security of payment afforded by this
    subtitle in establishing the fee guidelines.
    Tex. Lab. Code Ann. ' 413.011 (West 1996).
    3
    To fulfill this difficult statutory command, the Commission, pursuant to its rule-making
    authority, enacted Rule 134.201 (the AGuideline@), which sets certain limits on medical fees that can be
    charged by health care providers and contains the 1996 Medical Fee Guideline that constitutes the major
    part of this dispute.3 In addition, as part of the medical reimbursement scheme, the Commission enacted
    Rules 133.300-.305 (the ADispute and Audit Rules@), which govern the dispute resolution and auditing
    procedures of physicians= bills by insurance carriers.4
    Advocates challenges the Guideline=s validity on procedural grounds, contending that the
    Commission failed to follow proper procedure in promulgating its rule. Advocates also asserts that the
    Commission=s rules are substantively invalid because the Guideline places an impermissible ceiling on
    medical costs. Additionally, Advocates contends that the Dispute and Audit Rules improperly delegate
    oversight and dispute resolution powers to private insurance carriers and create a statute of limitations that is
    contrary to the Act. Finally, Advocates presents constitutional challenges that the rules lack a rational basis
    and violate the principles of due process and equal protection.
    PROCEDURAL CHALLENGE
    3
    The Guideline is codified at 28 Texas Administrative Code section 134.201 (1997).
    4
    The Dispute and Audit Rules are codified at 28 Texas Administrative Code sections
    133.301-.305 (2002). The Dispute and Audit Rules have been amended since this action commenced in
    the district court. We cite to the version currently in effect, as do the parties.
    4
    In its first issue, Advocates contends that the Guideline is invalid because the Commission
    failed to follow the proper rule-making procedures set forth in the Administrative Procedure Act (the
    AAPA@). Tex. Gov=t Code Ann. ' 2001.002 (West 1996).5 Included in Advocates= argument that the
    Guideline fails to substantially comply with the procedural rule-making requirements are specific complaints
    that the Commission: (i) failed to provide a reasoned justification for the Guideline, 
    id. ' 2001.033(1);
    (ii)
    failed to republish the Guideline after altering it, 
    id. ' 2001.023(a);
    (iii) failed to make a copy of the
    proposed rule available, 
    id. ' 2002.014;
    and (iv) failed to provide a statement of reasons for adoption of
    the Guideline, 
    id. ' 2001.030.
    Because these complaints are interrelated, we will address them together.
    The APA requires that when an administrative agency adopts a rule, it must, at the same
    time, state a reasoned justification for the rule. 
    Id. ' 2001.033.
    Thus, the agency must explain how and
    why it reached its conclusions, and it must do so in a logical and unambiguous manner. See National Ass=n
    of Indep. Insurers v. Texas Dep=t of Ins., 
    925 S.W.2d 667
    , 669 (Tex. 1996) (ANAII@); Texas Hosp.
    Ass=n v. Texas Workers= Compensation Comm=n, 
    911 S.W.2d 884
    , 886-87 (Tex. App.CAustin 1995,
    writ denied). In addition to a reasoned justification, the order adopting the rule must include a summary of
    the comments the agency received from interested parties, a restatement of the rule=s factual basis, and the
    reasons why the agency disagrees with the comments. Tex. Gov=t Code Ann. ' 2001.033; 
    NAII, 925 S.W.2d at 669
    . The APA places an affirmative duty on an agency to summarize the evidence it considered,
    5
    We refer to the version of the APA in effect when the Commission adopted the Guideline.
    5
    state a justification for its decision based on that evidence, and demonstrate that its justification is reasoned.
    
    NAII, 925 S.W.2d at 669
    .
    If an order does not substantially comply with these requirements, the rule is invalid. Tex.
    Gov=t Code Ann. ' 2001.035(a) (West 1996). Although the Legislature has amended the APA with
    respect to the standard for a reasoned justification, we are required to examine this case under the standard
    in effect pre-amendment.6 Prior to the enactment of the amended APA, this Court further stated that
    substantial compliance requires a penetrating analysis of the alternatives to the proposed rule. See Hosp.
    
    Ass=n, 911 S.W.2d at 884
    . We have also held that an agency=s order substantially complies with the
    reasoned justification requirement if it accomplishes the legislative objectives underlying the requirement and
    comes fairly within the character and scope of each of the statute=s requirements in concise, specific and
    unambiguous terms. See Methodist Hosps. v. Industrial Accident Bd., 
    798 S.W.2d 651
    , 657-59 (Tex.
    App.CAustin 1990, writ dism=d w.o.j.). Thus, the APA was designed to compel an administrative agency
    to articulate its reasoning and, in the process, more thoroughly analyze its rules. See 
    NAII, 925 S.W.2d at 671-72
    . Requiring an agency to demonstrate a rational connection between the facts before it and the
    agency=s rule promotes public accountability and facilitates judicial review. See 
    id. at 669.
    6
    The 76th Legislature amended the APA=s reasoned justification requirements. See Act of Jan.
    18, 1999, 76th Leg., R.S., ch. 558, ' 2, 1999 Tex. Sess. Law Serv. 9, 3090 (West 1999) (current version
    at Tex. Gov=t Code Ann. ' 2001.039). This revised statute supercedes prior case law; however, it does
    not apply to the Guideline which was adopted before January 1, 1998. See 
    id. 6 The
    Commission adopted the Guideline by publishing a preamble to the rule in the March
    22, 1996 issue of the Texas Register. 21 Tex. Reg. 2361-2392 (1996) (codified at 28 Tex. Admin. Code
    ' 134.201). The Commission explained the contents of the preamble as follows:
    As required by the Government Code, ' 2001.033(1), the commission=s reasoned
    justification is set out in this preamble. The reasoned justification is contained throughout
    the preamble, including the following portions: the reasons why the new rule and repeal are
    necessary; the factual, policy, and legal basis for the rule; restatement of the factual basis of
    the rule; a summary of comments received; names of those who commented and whether
    the commenters were for or against adoption of the new rule and repeal; and the reasons
    why the agency disagrees with some of the comments, submissions, and proposals.
    In the preamble, the Commission explained that it had studied other states= reimbursement
    systems and the guidelines employed across the country. That study found that Texas=s reimbursement
    system exceeded the national average, and, thus, the Commission enacted the new Guideline Ato move
    Texas towards a market based system which reimburses based on values set by the market for procedures .
    . . .@ The Commission then explained in great detail the factual, policy, and legal rationale behind the
    Guideline.
    The Commission explained that the Guideline contains, as the primary vehicle for cost
    containment, a list of maximum allowable reimbursement codes. As a model for its list, the Commission
    relied on a list of similar codes, referred to as CPT codes, published by the American Medical Association.
    The Guideline requires that medical care providers use these codes when submitting reimbursement claims
    to the workers= compensation insurance carriers. The provider must select the code that most accurately
    identifies the services required by a particular patient and present a bill to the insurance carrier with both the
    7
    identifying code or codes and the provider=s usual charges for those services. The carrier will then
    reimburse the provider the lesser of either the usual charge as billed or the Guideline=s maximum allowable
    reimbursement. Following the nearly five-page explanation of the basis for the Guideline, the Commission
    listed the persons and groups that submitted comments concerning its proposed Guideline. The
    Commission then listed summaries of the comments received. Following each comment, the Commission
    provided its response.
    The legislative objective of the reasoned-justification requirement is to give notice of the
    factual, policy, and legal bases for the rule, as adopted or construed by the agency, in light of all the
    evidence gathered by the agency and submitted by interested parties during the comment period. Lower
    Laguna Madre Found., Inc. v. Texas Natural Res. Conservation Comm=n, 
    4 S.W.3d 419
    , 427-28
    (Tex. App.CAustin 1999, no pet.). In the preamble, the Commission did more than merely comply with the
    APA=s requirements. The preamble clearly and exhaustively explains the Commission=s reasons for enacting
    the Guideline. Additionally, the preamble demonstrates that the Commission considered the comments in
    full and provided adequate rationale for its decisions. We therefore conclude that the Commission
    substantially complied with the reasoned-justification requirement of the APA.
    Having determined that the Commission complied with the APA=s requirement that an
    agency provide a reasoned justification for a rule, we now turn to Advocates= remaining procedural
    challenges to the Guideline. The APA requires that an agency give at least thirty days= notice of its intention
    to adopt a rule before doing so. Tex. Gov=t Code Ann. ' 2001.023(a). Advocates claims that the
    Commission failed to comply with this provision because it amended the Guideline after its initial publication
    8
    and then failed to republish it.7 If, after initial publication, a proposed rule is amended so that it affects other
    persons than those originally put on notice, then the agency must commence a new notice and comment
    period. State Bd. of Ins. v. Deffebach, 
    631 S.W.2d 794
    , 801 (Tex. App.CAustin 1982, writ ref=d n.r.e).
    However, after proper notice and hearing, should the agency amend the proposed rule such that no one
    other than those previously given notice would be affected, no further purpose would be served by requiring
    republication of the proposed rule. 
    Id. 7 The
    Guideline was adopted by reference to an earlier published version of its text in the
    Texas Register pursuant to section 2002.014 of the Government Code. Tex. Gov=t Code Ann. ' 2002.014
    (West 1996). That section allows the Secretary of State to omit otherwise required information from the
    Texas Register if production of that information would be expensive or cumbersome and copies of the
    omitted information are made available at a specified place. 
    Id. 9 In
    the present case, the Guideline, as originally published, did not contain the section
    concerning durable medical equipment that appears in the finalized version. The Commission took that
    section from a previously published proposed medical fee guideline applicable to hospitals.8 The crux of
    Advocates= complaint is that the Guideline was not republished after the durable medical equipment section
    was added. Applying Deffebach, we decline to hold that the Commission has violated the APA by failing
    to republish the Guideline. The publication of the durable medical equipment section in the earlier medical
    fee guideline applicable to hospitals placed the same persons on notice regarding the same subject matter as
    did the publication of the current Guideline. Furthermore, by amending the Guideline to include the durable
    medical equipment section after initial publication, the Commission did not ignore or substantially alter the
    proposed rule to an extent that a new or different group of persons were affected. Therefore, we hold that
    a new period of notice and comment was not required in this case, nor was it necessary to republish the
    Guideline.
    Advocates= final procedural challenge is that the Commission failed to make copies of the
    Guideline available. The APA allows the omission of otherwise required information from the Texas
    Register if production of that information would be expensive or cumbersome and copies of the omitted
    material are made available at a specified place. Tex. Gov=t Code Ann. ' 2002.014. The Guideline, which
    is acknowledged by both parties as being voluminous, was adopted by reference because the Commission
    did not republish it along with the preamble. That the voluminous Guideline was not published does not
    8
    The medical fee guideline applicable to hospitals was declared invalid by this Court in Texas
    Hosp. Ass=n v. Texas Workers= Compensation Comm=n, 
    911 S.W.2d 884
    , 886-87 (Tex. App.CAustin
    1995, writ denied) because the Commission failed to provide a reasoned justification for that rule.
    10
    violate the APA. See 
    id. Further, because
    the Commission specifically instructed interested parties that
    they could obtain copies at the Commission=s place of business, the Commission complied with the APA=s
    procedural directives. See 
    id. Accordingly, we
    overrule all of Advocates= procedural challenges to the
    Guideline.
    SUBSTANTIVE CHALLENGE
    Advocates asserts that the Commission exceeded its statutory authority by imposing a
    mandatory cap on medical fees. The Commission responds that promulgating the Guideline falls within the
    Commission=s general delegation of authority to adopt rules necessary for the implementation and
    enforcement of the workers= compensation system. See Tex. Lab. Code Ann. ' 402.061 (West 1996). In
    particular, the Commission must establish, by rule, guidelines for fees charged by physicians treating injured
    workers. 
    Id. ' 413.011(a)(1).
    In establishing those guidelines, the Commission must balance the inherently
    contradictory goals of ensuring participating physicians receive reasonable compensation while
    simultaneously maintaining effective cost control. See 
    id. ' 413.011(b).
    To determine whether an agency rule exceeds statutory authority, we ascertain whether the
    rule is in harmony with the general objectives of the statute. International Ins. Agency, Inc. v. Railroad
    Comm=n, 
    893 S.W.2d 204
    , 207 (Tex. App.CAustin 1995, writ denied). To make this determination, we
    must look not only to a particular provision of the Act, but to all applicable provisions. 
    Id. As in
    all
    questions of statutory interpretation, our goal is to determine and give effect to the Legislature=s intent.
    Albertson=s, Inc. v. Sinclair, 
    984 S.W.2d 958
    , 960 (Tex. 1999). We accomplish this task by first looking
    to the Act=s plain and common meaning. 
    Id. We liberally
    construe workers= compensation legislation to
    11
    carry out its evident purpose of compensating injured workers and their dependents. 
    Id. at 961;
    Fulton v.
    Associated Indem. Corp., 
    46 S.W.3d 364
    , 370 (Tex. App.CAustin 2001, no pet.).
    Agencies are creatures of statute. Sexton v. Mount Olivet Cemetery Assoc., 
    720 S.W.2d 129
    , 137 (Tex. App.CAustin 1986, writ ref=d n.r.e.). As such, agencies lack inherent authority and may
    only exercise those powers that are specifically granted to them by statute. Id.; McDaniel v. Texas
    Natural Res. Conservation Comm=n, 
    982 S.W.2d 650
    , 651 (Tex. App.CAustin 1998, pet. denied).
    However, agencies also have implied powers to do that which is necessary to carry out the specific powers
    delegated, for the Legislature intended a workable and effective exercise of the powers expressly and
    specifically granted the agency. See 
    Sexton, 720 S.W.2d at 137-39
    (full extent of power specifically
    granted to agency must be ascertained with due regard for rule that Legislature intends agency should have,
    by implication, such authority as may be necessary to carry out specific powers delegated).
    In this case, Advocates complains that the Commission exceeded its statutory authority by
    establishing a mandatory ceiling on medical fees when the plain meaning and intent of the term Aguideline@
    suggests a voluntary rather than a mandatory ceiling on medical fees. According to Advocates, the
    Guideline should do nothing more than provide a suggestive range of fees that the Commission considers to
    be fair and reasonable. In support of this argument, Advocates notes that the Act does not contain an
    express provision authorizing the Commission to impose a cap on fees. Advocates further contends that by
    establishing a ceiling, the Guideline deprives medical care providers of their statutory right to receive fair and
    reasonable value for their services.
    12
    The Commission, on the other hand, insists that there is nothing in the Act that prohibits a
    rule that imposes a mandatory cap on medical fees. Indeed, the Commission points to its mandate of
    controlling medical costs as strong evidence that the Legislature implicitly delegated to it the authority to set
    a ceiling on medical costs. Our review of the entire structure of the Act leads us to the conclusion that the
    Commission has this delegated power by implication, if not expressly.
    The Legislature has mandated that the Commission reevaluate its guidelines every two
    years.
    ' 413.012 Medical Policy and Guideline Updates Required
    The medical policies and fee guidelines shall be reviewed and revised at least every
    two years to reflect fair and reasonable fees and to reflect medical treatment or ranges of
    treatment that are reasonable or necessary at the time the review and revision is conducted.
    Tex. Lab. Code Ann. ' 413.012. This provision suggests that the Guideline may impose mandatory caps
    on fees. Recognizing that the Commission might limit the maximum amount of reimbursements, the
    Legislature mandated that the Commission regularly review and revise the Guideline to ensure that the caps
    do not arbitrarily depress medical fees to an unreasonable level. The two-year adjustment mandate ensures
    that, as costs rise, the workers= compensation health care delivery system does not suffer as a result of
    inadequate medical fee reimbursement. In ascertaining whether the Guideline complies with the general
    objectives of the Act, we must look to all applicable provisions of the Act. See International Ins. 
    Agency, 893 S.W.2d at 207
    . The inclusion of the two-year review provision in the Act provides support for the
    Commission=s position. The Legislature anticipated that the Commission might cap fees as a way to achieve
    13
    effective cost control. By including this provision in the Act, the Legislature ensured that those caps would
    be periodically evaluated to ensure that the Commission complied with its other mandate of maintaining fair
    and reasonable fees.
    We note, however, that since the Act=s enactment in 1989 and the Commission=s
    promulgation of the initial medical fee guideline in 1991, the Commission has revised the guideline only once,
    that being the 1996 Guideline under review. In over a decade since the Legislature enacted the new
    workers= compensation statute, the Commission has yet to conduct biennial reviews. While this Court is
    concerned by the fact that the Commission has not yet complied with this section, that issue is not before us.
    Advocates presents this case as a facial challenge to the rule. Consequently, we are not presented with a
    record that demonstrates that health care providers are being unfairly compensated due to the Commission=s
    failure to conduct biennial reviews or that the quality of medical care within the workers= compensation
    system has suffered for that reason. In considering Advocates= substantive challenge, we are asked to
    answer a narrow question: Does the Commission have the power to authorize and impose mandatory
    ceilings on medical care costs in enacting the 1996 Guideline? After reviewing the statute and the arguments
    of the parties, we conclude in the affirmative and accordingly overrule Advocates= substantive challenge.
    ENFORCEMENT CHALLENGE
    In its third issue, Advocates challenges the Commission=s rules concerning medical dispute
    resolution. Advocates complains that the Commission exceeded its statutory authority by promulgating the
    Dispute and Audit Rules that delegate auditing powers to private insurance carriers and impose a statute of
    14
    limitations on requests for dispute resolution filed with the Commission=s division of medical review.9 The
    Commission rejoins that the Act authorizes it to establish a program for the systematic monitoring of the
    necessity of treatments and fees charged by physicians, and that the Dispute and Audit Rules provide the
    framework for that program. See Tex. Lab. Code Ann. ' 413.013.
    Advocates contends that the Commission=s delegation of auditing powers violates the Act=s
    provisions and case law concerning the delegation of governmental powers to private entities. See 
    id. ' 413.015(b);
    Texas Boll Weevil Eradication Found., Inc. v. Lewellen, 
    952 S.W.2d 454
    (Tex. 1997).
    The Legislature has mandated that the Commission provide for the review and audit of payments by
    insurance carriers to ensure that health care providers and the insurance carriers comply with the
    Guideline. Tex. Lab. Code Ann. ' 413.015(b). Advocates argues that, while the Act provides the
    authority for the Commission to conduct audits of insurance carriers, the Legislature did not expressly or
    implicitly grant the Commission the power to delegate any audit powers to insurance carriers. Because of
    this purported delegation by the Commission, Advocates contends that the Commission has violated health
    care providers= rights to a contested-case proceeding and due process because the rules improperly permit
    insurance carriers to exercise governmental regulatory powers and impose an affirmative duty on health care
    providers to comply with all of the carrier=s demands during an audit.
    9
    The Act requires that the Commission maintain a division of medical review to ensure compliance
    with the Commission=s rules and to implement the provisions of the Act under the Commission=s policies.
    Tex. Lab. Code Ann. ' 413.002. The division of medical review must also monitor health care providers,
    insurance carriers, and workers= compensation claimants. 
    Id. 15 Advocates
    asserts that by delegating unfettered auditing powers to private insurance
    carriers, the Commission has violated the standards established by the Texas Supreme Court in Boll
    Weevil. In that case, the supreme court held that a state function may be delegated to a private entity, but
    that delegation must be subject to certain standards. Boll 
    Weevil, 952 S.W.2d at 472
    . In order to
    ascertain whether the delegation is proper, the court listed the following eight factors:
    1.   Are the private delegate=s actions subject to meaningful review by a state agency or
    other branch of state government?
    2.   Are the persons affected by the private delegate=s actions adequately represented in
    the decision-making process?
    3.   Is the private delegate=s power limited to making rules, or does the delegate also
    apply the law to particular individuals?
    4.   Does the private delegate have a pecuniary or other personal interest that may conflict
    with his or her public function?
    5.   Is the private delegate empowered to define criminal acts or impose criminal
    sanctions?
    6.   Is the delegation narrow in duration, extent, and subject matter?
    7.   Does the private delegate possess special qualifications or training for the task
    delegated to it?
    8.   Has the Legislature provided sufficient standards to guide the private delegate in its
    work?
    
    Id. The validity
    of a delegation does not hinge on any one factor. 
    Id. at 475.
    Boll Weevil mandates that
    we view the Commission=s delegation to private insurance carriers narrowly to determine whether that
    delegation conforms to the essence of the eight factors. See 
    id. 16 The
    Dispute and Audit Rules permit insurance carriers to retrospectively review all medical
    bills submitted. In conducting this review, the carriers may conduct an onsite audit of the health care
    provider. The retrospective review and audit allows the insurance carrier to audit the health care provider
    for (a) compliance with the Guideline, (b) duplicate billing, (c) billing for treatment or services unrelated to
    the compensable injury, (d) accuracy of coding in relation to medical records and reports, (e) accuracy of
    medical charges, and (f) unnecessary or unreasonable treatment or services. The Dispute and Audit Rules
    also require that, during an onsite audit, the health care provider must provide the carrier with all notes,
    reports, test results, narratives, and other documentation the provider has relating to the claims identified as
    being the subject of the audit.
    The Commission argues that this delegation complies with the Boll Weevil standards. The
    first Boll Weevil factor requires that the insurance carriers= actions in conducting the audits are subject to
    meaningful review by the Commission or another branch of state government. The Commission emphasizes
    that because parties may obtain final review of a payment decision at a hearing conducted by the State
    Office of Administrative Hearings, the delegation complies with the first Boll Weevil factor. See Tex. Lab.
    Code Ann. ' 413.031(d). The availability of this review hearing, however, does not demonstrate that the
    insurance carriers are subject to a review of the manner in which audits are conducted, how carriers
    determine which health care providers to audit, the scope of an audit, or the demands placed on health care
    providers subject to an audit.
    The second Boll Weevil factor requires that persons affected by the private delegate=s
    actions are adequately represented in the decision-making process. The Commission asserts that it has
    17
    complied with this factor because health care providers may challenge an insurance carrier=s reimbursement
    decision. However, health care providers must submit to the audit prior to a challenge before the
    Commission=s medical review division or a hearing by the State Office of Administrative Hearings. While
    the provider may have a representative present at the audit and may attempt to negotiate with the auditor,
    the provider=s representative has no authority to challenge the scope of the audit or the auditor=s decision
    concerning the disputed claims. The Commission argues that it provides the affected parties an early
    opportunity to settle their differences by requiring an exit interview where the auditor and the provider=s
    representative must discuss and attempt to resolve the dispute. However, this dispute resolution process
    appears to be illusory. As a practical matter, the health care provider has no authority to effect a resolution
    of the claim. Indeed, the entire audit process seems to grant all of the power to one of the parties involved,
    specifically the insurance carrier.
    The fourth Boll Weevil factor asks whether the private delegate has a pecuniary or other
    personal interest that may conflict with its public function. The Commission recognizes that its delegation of
    auditing powers to insurance carriers creates a conflict of interest. But the Commission maintains that since
    the Commission is the final arbiter of the dispute resolution process, the conflict does not pose a problem.
    The Commission acknowledges that private insurance carriers and health care providers occupy adversarial
    positions in the workers= compensation system. While health care providers are entitled to reasonable
    reimbursement for treating injured workers, the insurance carriers= goal is to minimize the amount it pays to
    providers. This direct conflict of interest interferes with the insurance carriers= public function which, as
    18
    espoused by the Commission, is to establish a program that ensures compliance with the Guideline and
    furthers the policies of the workers= compensation system.
    The final Boll Weevil factor clearly applicable to the private delegation is the sixth factor,
    which requires that the delegation be narrow in duration, extent, and subject matter. The Commission
    asserts that the many requirements it imposes on insurance carriers in conducting audits sufficiently limits the
    delegation, thereby complying with the sixth factor. For example, the carrier must pay half of the disputed
    claim and provide detailed notice of its choice to conduct an onsite audit, which includes the name and date
    of injury of the worker who received treatment, when those services were rendered, the name of the
    carrier=s representative, and the date of the audit. Certainly, these requirements provide the health care
    provider with sufficient notice as to when and where an audit will occur. But these notice and
    reimbursement requirements fall far short of any limitation on the duration of the audit, the extent of the
    audit, or the subject matter of the audit. These notice and reimbursement requirements merely affect an
    individual audit; they fail to address the essence of the fourth Boll Weevil requirement that the delegation
    be limited. Aside from these fairly stringent notice requirements, insurance carriers enjoy broad power to
    audit health care providers.
    We conclude that the Commission has delegated audit powers to private insurance carriers
    without providing sufficient standards to guide carriers in the performance of their delegated public function.
    While the Commission has provided for a review of a decision made after an audit has occurred, it has not
    established procedures that enable a meaningful review of the insurance carriers= auditing practices.
    Additionally, the Commission has granted sweeping power to insurance carriers and has provided only
    19
    illusory representation to health care providers. Therefore, because the Commission has failed to
    demonstrate that it has complied with the Boll Weevil standards, we conclude that this is an improper
    delegation. Accordingly, we hold that the provisions of the Dispute and Audit Rules delegating auditing
    powers to private insurance carriers are invalid. We now turn to Advocates= complaint regarding the
    imposition of a one-year statute of limitations on dispute resolution.
    The Dispute and Audit Rules contain the following statute of limitations on parties seeking
    medical dispute resolution, AA party shall file a request for medical fee, medical necessity, or injured
    employee medical reimbursement dispute resolution with the Division not later than one year after the
    date(s) of service in dispute.@ The primary purpose of a statute of limitations is to ensure that claims are
    asserted within a reasonable time, giving the opposing party a fair opportunity to prepare a defense while
    evidence is still available. Matthews Constr. Co. v. Rosen, 
    796 S.W.2d 692
    , 694 (Tex. 1990). A statute
    of limitations also ensures that notice of claims is given to adverse parties in order to prevent fraudulent and
    stale claims from springing up at great distances of time and surprising the other party. Hallaway v.
    Thompson, 
    226 S.W.2d 816
    , 820 (Tex. 1950). The Commission=s imposition of time limits for presenting
    claims complies with the general purpose of a statue of limitations. Accordingly, we overrule Advocates=
    issue regarding the imposition of a statute of limitations.
    CONSTITUTIONAL CHALLENGE
    Advocates also brings constitutional challenges to the Commission=s rules. Advocates
    contends that the Guideline is constitutionally defective because the manner in which the Commission
    established the maximum allowable reimbursement codes is arbitrary and lacks a rational basis. As we have
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    previously discussed, the Commission promulgated the Guideline as the means to achieve cost containment
    because the fee limits established by the 1991 guideline far exceeded the national average for fair and
    reasonable fees in a workers= compensation system. The Guideline reflects the Commission=s effort to meet
    the Act=s stated goal of ensuring quality medical care while achieving cost control. Advocates asserts that
    any variances of twenty-five percent below the fee levels established in 1991 demonstrate that the Guideline
    is arbitrary on its face because the Commission stated in the preamble that such variances are Astatistical
    outliers.@ Advocates refers us to a single code that varies by seventy percent. This code provides an
    example of a Astatistical outlier.@ However, one anomaly does not render the entire Guideline invalid due to
    arbitrariness.
    Advocates also seeks a determination that the Guideline lacks a rational basis because it
    attempts to reduce rather than control costs. Advocates contends that the Act requires cost control and
    that any attempt to reduce costs exceeds the Commission=s authority, thus rendering its actions
    unconstitutional. We disagree. The Act grants the authority to achieve cost control. If the Commission
    deems a particular fee excessive, it may act to reduce that fee in order to achieve its goal. We overrule
    Advocates= first constitutional challenge.
    Advocates claims that the Guideline violates the principle of equal protection because it
    treats anesthesiologists differently than other physicians. The test for impermissible discrimination is whether
    the classification causes similarly situated persons to be treated differently without rational justification.
    Bullock v. Regular Veterans Ass=n of U.S. Post No. 76, 
    806 S.W.2d 311
    , 313 (Tex. App.CAustin
    1991, no writ). In this case, the preamble includes a detailed discussion about the differences between fee
    21
    calculation for anesthesiologists as opposed to physicians in other specialties. Due to these differences, the
    Commission employed a specific data calculation model designed solely for anesthesiologists. Because the
    Commission had a rational basis for its decision and because the Guideline does not impermissibly
    discriminate between individual anesthesiologists, we overrule Advocates= equal protection issue.
    Finally, Advocates attacks certain provisions within the Dispute and Audit Rules as violating
    constitutional rights to due process and open courts. Because we have declared these provisions invalid as
    an improper delegation of authority to private insurance carriers, we need not address Advocates= final
    issue. See Tex. R. App. P. 47.1.
    CONCLUSION
    For the reasons discussed above, we hold that the Guideline=s imposition of caps on
    medical fees complies with the Act. We overrule Advocates= challenges to the imposition of a one-year
    statute of limitations on medical dispute resolution as well as Advocates= constitutional challenges to the
    Guideline. However, we hold that the Commission=s delegation of sweeping auditing powers to private
    insurance carriers is inval
    id. Accordingly, we
    reverse the judgment of the trial court and render judgment
    that the portions of the Dispute and Audit Rules delegating audit power to private insurance carriers are
    void. On all other points, the judgment of the trial court is affirmed.
    Mack Kidd, Justice
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    Before Justices Kidd, Yeakel and Patterson
    Affirmed in Part; Reversed and Rendered in Part
    Filed: April 25, 2002
    Publish
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