MedicaidBilling CodesMedium impact
Updated Guidance - Intracity-Intown Mileage
Connecticut Medicaid (HUSKY Health)·Emergency Medicine·Provider Bulletin
Effective date
Feb 1, 2026
We identified it
Jun 20, 2026
Summary
Effective February 1, 2026, ambulance providers must use different billing codes for emergency vs. non-emergency intracity mileage. Code 4701Y should only be used for non-emergency Medicaid transportation mileage, while A0425 must be used for all emergency transport mileage.
Action Required
Before February 1, 2026: Billing team must update ambulance billing protocols to separate emergency and non-emergency mileage coding. Configure billing system to use code 4701Y only for non-emergency Medicaid transport mileage and A0425 for all emergency transport mileage. Train staff on the distinction between emergency and non-emergency services for proper code selection.