Coverage and billing rules for ambulance services.
Ambulance services are covered when billed in accordance with the policy's coding and billing requirements; each ambulance trip requires an appropriate transportation HCPCS code and the appropriate two-character origin/destination modifier (first position = origin, second position = destination).
Mileage must be reported for each trip and billed with the appropriate mileage HCPCS code: ground mileage with A0425 and air mileage with A0435/A0436.
ALL of the following
For trips up to 100 covered miles, round total miles up to the nearest tenth and report with a decimal (e.g., 99.9).
For trips totaling 100 covered miles and greater, round total miles up to the next whole mile and report without a decimal (e.g., 998.5 -> 999).
Items included (bundled) in the ambulance transportation allowance and not separately reimbursed: waiting time; disposable and non-disposable supplies (including but not limited to oxygen, inflatable leg and arm splints, backboards, and neck boards/collars); EKGs; drugs; extra attendants; and similar services.
Round-trip transports for hospital inpatients are included in the facility fee paid to the admitting hospital and are not reimbursed separately.
ALL of the following
To report transport with more than one patient onboard, use modifier GM on each service line and include the total number of patients transported on the claim line. GM may be used for ground and air transports.
Do not report ambulance transportation if the member was legally pronounced dead before the ambulance was dispatched. If the member is pronounced dead after dispatch, report the transport and append modifier QL (Patient pronounced dead after ambulance called).
HCPCS codes to be used for ambulance services include A0425–A0436 (ground and air transport codes including mileage and service level codes). Use the appropriate code for the service provided (e.g., A0426/A0427 for ALS1, A0428/A0429 for BLS, A0430/A0431/A0433/A0434 for air and specialty transports).
Revenue code guidance: Ambulance-related revenue lines include codes such as 540 (Ambulance/General), 542 (Ambulance/Medical Transport), 543 (Ambulance Heart Mobile), 545 (Air Ambulance), 546 (Neonatal Ambulance), and 548 (Telephone Transmission EKG - AMBULANCE).
Claims may be submitted on the appropriate claim form (CMS-1500 or equivalent for suppliers, or UB-04 for facility billing) as applicable to the provider type.