Ambulance Fee Schedule
Guidance for AFS including proposed payment rule, geographic area definitions by zip code, and related links.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: August 01, 2012
The Medicare Part B Ambulance Fee Schedule (AFS) is a national fee schedule for ambulance services:
- Find Public Use Files (PUFs) with payment amounts for each calendar year and ZIP Code Geographic Designations Files
- Learn about the Medicare Ground Ambulance Data Collection System (GADCS)
- Read Code of Federal Regulations (CFR)
This webpage is for ambulance services providers and suppliers. If you're a person with Medicare, learn more about your coverage for ambulance services.
Payment under the AFS
The fee schedule applies to all ambulance services provided by:
- Volunteer, municipal, private, and independent ambulance suppliers
- Institutional providers, including hospitals and skilled nursing facilities
- Critical access hospitals, except when they’re the only ambulance service within 35 miles
Ambulance providers and suppliers must:
- Accept Medicare allowed charges as payment in full
- Only bill beneficiaries for Part B coinsurance and deductible
National Breakout of Geographic Area Definitions by ZIP Code
- ZIP Code to Carrier Locality File (ZIP) - Revised 11/15/2024
- ZIP Codes requiring 4 extension (ZIP) - Revised 11/15/2024
- Changes to ZIP Code File (ZIP) - Revised 11/15/2024
- 2024 End of Year Zip Code File (ZIP)
- 2023 End of Year Zip Code File (ZIP)
- 2022 End of Year ZIP Code File (ZIP)
- 2021 End of Year ZIP Code File (ZIP) - Revised 05/27/2022
- 2020 End of Year ZIP Code File (ZIP)
- 2019 End of Year ZIP Code File (ZIP)
- 2018 End of Year ZIP Code File (ZIP)
- Claim Adjustment Reason and Remittance Advice Remark Codes
- Electronic Billing & EDI Transactions
View archive & legacy files.
AFS Medical Conditions List & Coding for the Emergency Triage, Treat, and Transport (ET3) Model
- Ambulance Fee Schedule - Medical Conditions List (PDF)
- Ambulance Fee Schedule - Medical Conditions List & Transportation Indicators (PDF)
- ICD-10-CM Cross Walk for Medical Conditions List (ZIP)
- Origin and Destination Codes Specific to Ambulance Service Claims and Emergency Triage, Treat, and Transport (ET3) Model claims (PDF)
Report
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DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.