MedicaidPrior AuthMedium impact
Physician Administered Drug PA Requirement: J0174 – Leqembi requires prior authorization
Mississippi Medicaid (DOM)·MS · Neurology·Prior Authorization
Effective date
Jul 6, 2023
We identified it
Jun 21, 2026
Summary
Effective July 6, 2023, Mississippi Medicaid now requires prior authorization for J0174 (Leqembi injection, lecanemab-irmb). All authorization requests for fee-for-service Medicaid beneficiaries must go through Alliant Health Solutions.
Action Required
Immediately: Billing team must update system to require prior authorization for HCPCS code J0174 (Leqembi injection) for Mississippi Medicaid fee-for-service patients. Register with Alliant Health Solutions provider portal at https://ms.allianthealth.org/ or call 1-888-224-3067 for authorization requests. Update encounter forms to alert providers. Claims will be denied without prior authorization.