Okla. Stat. tit. 85A, § 85A-16: Official Disability Guidelines - Treatment in Workers

Compensation.

A. The Official Disability Guidelines - Treatment in Workers

Compensation (ODG), published by the Work Loss Data Institute, is to

be recognized as the primary standard of reference, at the time of

treatment, in determining the frequency and extent of services

presumed to be medically necessary and appropriate for compensable

injuries under this act, or in resolving such matters in the event a

dispute arises. The medical treatment guidelines are not

requirements, nor are they mandates or standards; they provide

advice by identifying the care most likely to benefit injured

workers. The guidelines shall be evidence-based, scientifically

valid, outcome-focused, and designed to reduce excessive or

inappropriate medical care while safeguarding necessary medical

care.

B. Physicians providing care to an employee shall prescribe for

the employee any necessary prescription drugs and over-the-counter

alternatives to prescription medicine as clinically appropriate and

as recommended under the Official Disability Guidelines.

Prescriptions and nonprescription drugs that are not preferred,

exceed or are not addressed by ODG require preauthorization and the

preauthorization request shall include the prescribing doctor's drug

regimen plan of care and the anticipated dosage or range of dosages.