MI HB4685

Requires health insurers providing mental health and substance use disorder benefits to reimburse for services delivered through the psychiatric collaborative care model

Mandates coverage of specific Current Procedural Terminology (CPT) billing codes: 90844, 99492, 99493, 99494, and G2214

Authorizes the director to update the list of required billing codes if the American Medical Association alters or adds codes for the psychiatric collaborative care model

Permits insurers to deny reimbursement based on medical necessity determinations, provided they comply with the federal Mental Health Parity and Addiction Equity Act of 2008 and state utilization review requirements

Defines "psychiatric collaborative care model" as the evidence-based, integrated behavioral health service delivery method described in federal regulations (81 FR 80230)