Medicare AdvantageCoverageMedium impact
Substance Use Disorder Inpatient Services - Medicare Advantage (Revised)
Humana·Psychiatry, Internal Medicine, Family Medicine·Pharmacy
Effective date
Jul 1, 2026
We identified it
Jul 2, 2026
Summary
Humana Medicare Advantage revised its Substance Use Disorder (SUD) inpatient coverage policy effective 07/01/2026, establishing specific medical necessity criteria for detoxification and rehabilitation services. Billing teams must now ensure all SUD inpatient admissions meet documented criteria including the two-midnight benchmark, complex medical factors, physician orders with comorbid diagnoses, and individualized treatment plans with specific components.
Action Required
By June 30, 2026: Billing and utilization review teams must update prior authorization processes and claim review procedures for all SUD inpatient admissions on Humana Medicare Advantage plans. Require providers to document: (1) complex medical factors indicating high probability of medical complications during detox OR documentation that less intensive rehab settings have failed; (2) physician orders including provisional/admitting diagnosis of comorbid conditions and psychiatric diagnosis; (3) individualized treatment plans addressing psychiatric management, abstinence strategy, relapse prevention, and treatment of co-occurring conditions; (4) physician supervision and evaluation. Update encounter templates and utilization management workflows to verify all criteria are met before authorization. Claims lacking this documentation will be denied as not medically necessary. Communicate requirements to all participating providers, addiction medicine specialists, and psychiatric facilities.