Bill > HB4685

This bill requires health insurers in Michigan to provide reimbursement for mental health and substance use disorder services delivered through the Psychiatric Collaborative Care Model (CoCM), a specific evidence-based integrated behavioral health service approach. The bill mandates that insurers cover specific Current Procedural Terminology (CPT) billing codes related to this model: 90844, 99492, 99493, 99494, and G2214. The state's insurance director is authorized to update the list of these codes if changes occur. Insurers can deny reimbursement for these services based on medical necessity, but such determinations must comply with the Mental Health Parity and Addiction Equity Act and be made according to existing utilization review requirements. The Psychiatric Collaborative Care Model, as defined in a federal register document, is an integrated behavioral health service delivery method designed to improve mental health treatment by coordinating care between primary care providers, mental health specialists, and care managers.

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https://legislature.mi.gov/Bills/Bill?ObjectName=2025-HB-4685