Medicare Fee-for-Service Comprehensive Error Rate Testing
The Medicare Fee-for-Service (FFS) Comprehensive Error Rate Testing (CERT) dataset provides information on a random sample of FFS claims to determine if they were paid properly under Medicare coverage, coding, and...
Freshness
- Last posted
- Period covered
- Jan 1, 2025 to Dec 31, 2025
- Update frequency
- Annually
Dates as CMS lists them in its catalog.
Columns 8
| Column | What it means | Type |
|---|---|---|
claim_control_numberclaim_control_number | number | |
PartPart | Type of Medicare Fee-for-Service claim | string |
DRGDRG | The Diagnosis Related Group code | string |
HCPCS Procedure CodeHCPCS Procedure Code | string | |
Provider TypeProvider Type | string | |
Type of BillType of Bill | number | |
Review DecisionReview Decision | string | |
Error CodeError Code | string |
No column matches that filter.
At a glance
- Catalog
- data.cms.gov
- Publisher
- Office of Enterprise Data and Analytics (OEDA)
- Rows
- 163,940
- Columns
- 8
- State column
- None found
- Contact
- CERT@cms.hhs.gov
API
Free, no key needed. This request returns the first 10 rows as JSON:
https://data.cms.gov/data-api/v1/dataset/6395b458-2f89-4828-8c1a-e1e16b723d48/data?size=10
Versions 15
The newest version is the one linked above. Older releases stay on the official site.
- 2025-01-01posted Feb 3, 2026
- 2024-01-01posted Oct 28, 2025
- 2023-01-01posted Jan 4, 2024
- 2022-12-31posted Mar 6, 2023
- 2021-12-31posted Jan 13, 2022
- 2020-12-31posted May 20, 2021
- 2019-12-31posted May 20, 2021
- 2018-02-13posted May 20, 2021
Show 7 older versions
- 2017-11-13posted May 20, 2021
- 2016-02-13posted May 20, 2021
- 2015-02-13posted May 20, 2021
- 2014-02-13posted May 20, 2021
- 2013-02-13posted May 20, 2021
- 2012-02-13posted May 20, 2021
- 2011-02-13posted May 20, 2021
CMS's description
The Medicare Fee-for-Service (FFS) Comprehensive Error Rate Testing (CERT) dataset provides information on a random sample of FFS claims to determine if they were paid properly under Medicare coverage, coding, and payment rules. The dataset contains information on type of FFS claim, Diagnosis Related Group (DRG) and Healthcare Common Procedure Coding System (HCPCS) codes, provider type, type of bill, review decision, and error code. Please note, each reporting year (RY) contains claims submitted July 1 two years before the report through June 30 one year before the report. For example, the 2025 data contains claims submitted July 1, 2023 through June 30, 2024.
Methodology and other documents from CMS:
The summary at the top is the first sentence of this description. Record id cms:6395b458-2f89-4828-8c1a-e1e16b723d48. This record as JSON.