HCPCS Level II code A0380 designates basic life support (BLS) mileage billed on a per-mile basis for ground ambulance transport. This code captures the distance component of BLS transport and is commonly used by emergency medical services and ambulance providers to bill mileage separately from on-scene care or transport-level services. Nationally, accurate reporting of mileage codes like A0380 matters for appropriate payment for non-hospital transportation, program integrity, and consistent claims processing across payers.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an explanation of the code’s clinical and billing context, typical sites of service, the common modifiers associated with ambulance claims, and how mileage reporting integrates with service-line billing. The publication provides benchmarks and comparison points where available, summarizes relevant policy considerations affecting mileage reimbursement, and highlights common billing situations and documentation expectations. Data not available in the input will be noted where applicable.