Prior authorization for health care services.

Amends the law on health care service prior authorizations: (1) to establish a standard by which to determine whether a health care service is "medically necessary"; (2) to require that the medical review or utilization review practices of a health plan be governed by this standard of medical necessity; (3) to require a health plan to employ a medical director who is responsible for reviewing and approving the health plan's policies on responses to requests for prior authorization; (4) to require a health plan to establish clear written policies and procedures for prior authorization for health care services; (5) to restrict a health plan's prior authorization requirements applying to: (A)…