California Code, Health and Safety Code - HSC § 1367.015

In addition to complying with subdivision (h) of Section 1367.01, in determining whether to approve, modify, or deny requests by providers prior to, retrospectively, or concurrent with the provision of health care services to enrollees, based in whole or in part on medical necessity, a health care service plan subject to Section 1367.01 shall not base decisions to deny requests by providers for authorization for mental health services or to deny claim reimbursement for mental health services on either of the following: