MedicaidPrior AuthHigh impact
Upcoming Service Authorization Requirements for Designated Behavioral Health and Substance Use Disorder Services
Alaska Medicaid·AK · Psychiatry·Prior Authorization
Effective date
Jul 1, 2025
We identified it
Jun 21, 2026
Summary
Beginning July 1, 2025, Alaska Medicaid will require prior authorization through HMS Gainwell for behavioral health and substance use disorder residential services that exceed fiscal year limits (ranging from 7 to 180 days depending on service type). Providers must submit service authorization requests demonstrating medical necessity for continued treatment beyond these limits.
Action Required
By July 1, 2025: Billing and clinical staff must implement tracking system to monitor fiscal year limits for Alaska Medicaid BH/SUD residential services. Update billing workflows to submit prior authorization requests to HMS Gainwell when services approach limits (7 days for crisis residential, 90 days for most residential treatment, 180 days for Adult Level 2, 14 days for withdrawal management). Ensure medical necessity documentation is prepared for authorization requests. Services exceeding limits without authorization will be denied.