Medicare and Medicaid Claims Data (CMS data dictionaries)

1. ResDAC data documentation

   ResDAC variable documentation for Medicare, Medicaid and Part D files.

2. Chronic Conditions Warehouse

   CCW data dictionaries, file layouts and chronic condition algorithms.

3. Research identifiable files

   CMS data products and data use agreements.

4. Medicaid T-MSIS

   T-MSIS file types (eligibility, claims, provider, managed care) and data dictionary.

5. Part D prescription drug event

   PDE record fields such as NDC, quantity, days supply and plan paid amounts.

6. Synthetic data

   Medicare Claims Synthetic Public Use Files and DE-SynPUF.

7. Public use files

   data.cms.gov datasets and APIs for provider utilization and payment.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.