HCPCS Level II · Transportation, medical and surgical supplies
A0021Ambulance service, outside state per mile, transport (medicaid only)
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About A0021
A0021 is an HCPCS Level II code in the A series (transportation, medical and surgical supplies), describing ambulance service, outside state per mile, transport (medicaid only).
It was added to HCPCS effective 01/01/1985, and its current record took effect 09/10/1996.
Its Medicare coverage code is "I", meaning it is not payable by Medicare (another code or method is used).
Details
- Short description
- Outside state ambulance serv
- Date added
- 01/01/1985
- Action effective
- 09/10/1996
- BETOS
- O1A
Related A00xx codes
Common questions about A0021
Is HCPCS A0021 still valid?
- Yes. A0021 is active in the CMS October 2026 HCPCS file.
Does Medicare cover A0021?
- Its coverage code is "I": it is not payable by Medicare (another code or method is used). Check the local coverage determination for your region.