MedicaidBilling CodesMedium impact
Clarification of Ambulance Mileage Procedure Codes
Connecticut Medicaid (HUSKY Health)·CT · Emergency Medicine·Provider Bulletin
Effective date
Jan 1, 2016
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid is consolidating ambulance mileage billing codes effective January 1, 2016. Emergency ambulance providers must use A0425 for all mileage instead of A0380/A0390, while non-emergency providers must use S0215 which requires prior authorization from LogistiCare.
Action Required
Before January 1, 2016: Billing team must update ambulance billing to use A0425 for emergency mileage (replacing A0380 and A0390) and S0215 for non-emergency mileage. Ensure prior authorization process with LogistiCare is established for non-emergency claims using S0215. Update billing software rules to prevent use of discontinued mileage codes A0380 and A0390.