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Air Ambulance
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Medical necessity criteria and coverage guidance for fixed-wing and rotary-wing air ambulance transport for Ambetter Georgia members; governs when air transport is considered medically necessary or not and lists relevant billing codes.
No material clinical or coverage changes in this revision.
Coverage Criteria for Air Ambulance Transport
Medically necessary air ambulance
Covered when ALL of the following are met
Examples include intracranial bleeding requiring neurosurgical intervention; cardiogenic shock; burns requiring treatment in a burn center; conditions requiring hyperbaric oxygen; multiple severe injuries; life‑threatening trauma; cerebrovascular infarction needing tPA at a certified stroke center.
Inaccessibility examples include Hawaii, Alaska, and other remote or sparsely populated areas.
Not medically necessary
Not medically necessary when ANY of the following apply
Transportation to non-acute care destinations is excluded from coverage. Specifically, air ambulance transport is not covered when the destination is a facility that is not an acute care hospital, such as a nursing facility, physician's office, or the member's home.
Air ambulance transport is considered not medically necessary in several scenarios. Coverage is not provided when the member was legally pronounced dead before the ambulance was called, when transport is provided primarily for the convenience of the member, family, or physician, when the transport is to a non-acute care destination (see exclusions), or when the purpose of transport is to receive a service that itself is not medically necessary even if the receiving facility is appropriate.
Billing Codes and Transport Thresholds
| A0430 | Ambulance service, conventional air services, transport, one way (fixed wing) |
| A0431 | Ambulance service, conventional air services, transport, one way (rotary wing) |
| A0435 | Fixed wing air mileage, per statute mile |
| A0436 | Rotary wing air mileage, per statute mile |
| S9960 | Ambulance service, conventional air services, nonemergency transport, one way (fixed wing) |
| S9961 | Ambulance service, conventional air service, nonemergency transport, one way (rotary wing) |
| No codes listed |
Provider Requirements, Prior Authorization, and Documentation
Coding and prior authorization — include listed HCPCS and obtain prior auth
Include the following HCPCS codes on air ambulance claim submissions and verify prior authorization per Health Plan procedures where applicable.
- A0430 — Ambulance service, conventional air services, transport, one way (fixed wing)
- A0431 — Ambulance service, conventional air services, transport, one way (rotary wing)
- A0435 — Fixed wing air mileage, per statute mile
- A0436 — Rotary wing air mileage, per statute mile
- S9960 — Ambulance service, conventional air services, nonemergency transport, one way (fixed wing)
- S9961 — Ambulance service, conventional air service, nonemergency transport, one way (rotary wing)
Provider billing note — verify prior auth and code accuracy
Confirm medical necessity before arranging air transport; obtain any required prior authorization and ensure submitted codes match the transport type (fixed‑ or rotary‑wing).
- Verify payer-specific prior authorization requirements before transport.
- Ensure billing codes correspond to type of service and mileage billed.
Required documentation to support medical necessity
Document clinical evidence that ground or water transport (BLS/ALS) would endanger the member’s health or threaten survival, and justify why ground transfer is not feasible.
- Include clinical examples when applicable (e.g., intracranial bleeding needing neurosurgery; cardiogenic shock; severe burns; need for hyperbaric oxygen; multiple severe injuries; life‑threatening trauma; cerebrovascular infarction needing tPA).
- State why the pickup location is inaccessible or why great distance/obstacles or travel time (exceeding 30–60 minutes) preclude ground transport, or document that the transferring facility lacks required specialty services.
Common denial triggers — primary risk factors for claim denial
Claims may be denied if transport is for convenience, the member was legally pronounced dead before the ambulance was called, the destination is non‑acute, or the transport is to receive a service that is not medically necessary.
- Transportation provided primarily for convenience of member/family/physician.
- Member legally pronounced dead before ambulance was called.
- Transport to non‑acute destinations (e.g., nursing facility, physician’s office, home).
- Transport to receive services deemed not medically necessary.
Background
Air ambulance services — both rotary wing (helicopter) and fixed wing (airplane) — are used to rapidly move critically ill or injured patients when ground or water transport would be unsafe, inaccessible, or would cause clinically significant delays. Rotary wing aircraft are typically optimal for scene responses and shorter-range transfers, while fixed wing aircraft are generally used for longer distances and can better support intensive in-flight care. Use of air transport is intended to improve the chance of survival and recovery, particularly where advanced care is not available locally.
Definitions
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