(a) The commission may:
(1) evaluate and implement, as appropriate, procedures, policies, and methodologies to require prior authorization for high-cost medical services and procedures; and
(2) contract with qualified service providers or organizations to perform those functions.
(b) A procedure, policy, or methodology implemented under this section must comply with any prohibitions in state or federal law on limits in the amount, duration, or scope of medically necessary services for Medicaid recipients who are children.