As set forth in 42 C.F.R. §§ 456.50 and 456.150, general hospitals and psychiatric hospitals must maintain medical records and other documentation sufficient to show that all requirements concerning certification of need for care, plan of care, and utilization review plans have been met. Psychiatric hospitals must also maintain medical records and other documentation sufficient to show that all requirements concerning medical evaluation and admission review have been met, in accordance with 42 C.F.R. § 456.150.
Okla. Admin. Code § 317:30-5-95.12