Our Medicare CBSA Codes database (Core-Based Statistical Areas) are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient’s ZIP Code, such as the Medicare Home Health Rural Add-on Incentive.
The Patient Protection and Affordable Care Act (PPACA) signed into law in early 2010 gives an additional 3% to payments made for home health services to patients in rural areas. To qualify for this incentive, a patient must live in a rural area indicated by Medicare CBSA Codes used by the Centers for Medicare & Medicaid Services (CMS). To help make that determination, this database lists Medicare CBSA Codes, by county, and ZIP Code.
Comma-Separated Values (CSV) Text File
Official U.S. Postal Service five digit ZIP Code
Official city name used by the U.S. Postal Service
Official U.S. Postal Service State Abbreviation
Official State Name
Federal Information Processing Standard (FIPS) 2‐digit state. FIPS codes are not available for all areas (APO, FPO, some U.S. Territories).
The state codes used in Medicare databases are Social Security Administration (SSA) codes, which differ from Federal Information Processing Standard codes (FIPS).
The name of the county in which the ZIP Code is found.
Federal Information Processing Standard (FIPS) 3‐digit county. FIPS codes are not available for all areas (APO, FPO, some U.S. Territories).
(aka CMS CBSA) Geographic location code as defined by the Office of Management and Budget. Note: if the OMB makes a change after CMS has defined their codes, it won't show up until the next fiscal year.
Geographic location name as defined by the Office of Management and Budget
A CBSA sub-classification:
Micro - 10,000 to 50,000 population
Metro - 50,000 + population
