423 P.3d 1119
Okla.2018Background
- Robert Hill, a paramedic, injured his right shoulder at work in 2014 and underwent surgery; he reached maximum medical improvement and sought permanent partial disability (PPD) benefits under the AWCA.
- Employer submitted a PPD rating via Dr. Gillock using the AMA Guides, Sixth Edition (4.2% whole person); Hill submitted Dr. Wilson's report showing 8% (Sixth Edition) and 31.8% (Fifth Edition).
- At the ALJ hearing Hill moved to exclude Employer's report under Daubert and challenged the constitutionality of statutory provisions mandating use of the AMA Guides, Sixth Edition for non‑scheduled body parts; ALJ admitted the report and awarded 7% PPD ($7,913.50).
- The Workers' Compensation Commission affirmed; Hill appealed to the Oklahoma Supreme Court, raising admissibility and multiple constitutional challenges to the AWCA provisions requiring the AMA Guides.
- The Oklahoma Supreme Court affirmed: (1) ALJ did not err in admitting Dr. Gillock’s report; (2) mandatory use of the AMA Guides, Sixth Edition (as enacted) for non‑scheduled members is constitutional; (3) the Court construed "current/most current edition" to mean the edition current when the statutory language was enacted (the Sixth Edition) to avoid unconstitutional delegation.
Issues
| Issue | Plaintiff's Argument (Hill) | Defendant's Argument (Employer / Commission) | Held |
|---|---|---|---|
| Admissibility of employer physician's report under Daubert/FRE 702 | Dr. Gillock’s opinion is irrelevant because the AMA Guides address "impairment," while the AWCA awards "disability," so the report fails Daubert reliability/relevance | AWCA defines "permanent disability" by reference to the AMA Guides; expert testimony complying with Rule 702/AWCA §72(D) is admissible | Admitted: AWCA expressly ties permanent disability to AMA Guides; vocational/wage data not required for PPD under AWCA, so Daubert challenge fails |
| Statutory mandate to use the AMA Guides violates separation of powers / predetermines adjudicative facts | Legislature's requirement forces the trier of fact to accept a legislative/medical standard, usurping fact‑finding | Legislature may set evidentiary rules and require conformity to a stated standard without dictating weight or outcome; ALJs still adjudicate within range of competent reports | Rejected: statute defines admissible evidence but does not predetermine adjudicative facts or compel weight; ALJs retain fact‑finding discretion |
| Reference to "current/most current edition" = unconstitutional delegation to AMA | Allowing the statute to incorporate future editions delegates legislative authority to a private body that can change standards | Statute can be reasonably construed to adopt the edition current when enacted (Sixth Edition), avoiding delegation | Rejected: Court adopts the construction that "current/most current" refers to the edition current at enactment (Sixth Edition) to avoid non‑delegation problem |
| Due process / access to courts / substantive due process / grand bargain | Mandatory AMA Guides use denies procedural rights (e.g., cross‑examine AMA authors), substantive fairness, and violates the grand bargain protecting workers | Hill had notice, hearing, opportunity to present/rebut evidence; uniform guides further legitimate state interest (uniformity, prevent disparity); policy complaints are for Legislature | Rejected: procedural and substantive due process not violated; access to courts not denied; policy/grand‑bargain concerns are legislative issues |
Key Cases Cited
- Daubert v. Merrell Dow Pharm., 509 U.S. 579 (1993) (establishes federal reliability/relevance standard for expert testimony)
- Maxwell v. Sprint PCS, 369 P.3d 1079 (Okla. 2016) (discusses PPD framework and limits on deferral provisions; guidance on date/version issues)
- Torres v. Seaboard Foods, 373 P.3d 1057 (Okla. 2016) (analysis of substantive due process and reviewing workers' compensation statutory policy)
- Lee v. Bueno, 381 P.3d 736 (Okla. 2016) (legislative rules of evidence are within legislative prerogative; separation‑of‑powers limits explained)
- Conaghan v. Riverfield Country Day Sch., 163 P.3d 557 (Okla. 2007) (invalidates statutory provisions that give determinative effect to certain medical opinions)
- Yocum v. Greenbriar Nursing Home, 130 P.3d 213 (Okla. 2005) (legislature may not predetermine adjudicative facts or assign elevated probative value)
- Cline (Oklahoma Coalition for Reprod. Justice v. Cline), 368 P.3d 1278 (Okla. 2016) (construe statutes to avoid unconstitutional delegation where possible)
- Protz v. Workers' Comp. Appeal Bd., 161 A.3d 827 (Pa. 2017) (discusses non‑delegation and incorporation of later editions of AMA Guides)
- McCabe v. North Dakota Workers Comp. Bureau, 567 N.W.2d 201 (N.D. 1997) (upheld interpreting "current edition" as the edition current at enactment to avoid delegation)