Okla. Stat. tit. 63, § 5023

Adjustment of per diem rate - Medicaid savings. Effective January 1, 2000, and every January thereafter, the Oklahoma Health Care Authority will adjust the nursing facility per diem rate in an amount equal to the total amount of the savings to the Medicaid program as a result of the automatic cost-of-living adjustment on Social Security benefits received by nursing home recipients, as published in the Federal Register.