Every health insurance plan which proposes to administer a health benefits program that provides for the coverage of hospital and/or medical benefits and the utilization review of those benefits shall:
The provisions of this section shall not apply to insurance companies and not-for-profit hospital services and medical indemnity plans, licensed by the Commissioner to transact insurance in this state, that perform in-house utilization review.
Okla. Stat. tit. 36, § 6556