Blue Button 2.0

1. Developer overview

   Medicare claims data API via FHIR R4 and OAuth2 for beneficiary-authorized apps.

2. Authorization

   OAuth2 authorization code flow, PKCE, scopes and beneficiary consent.

3. Resources

   Patient, Coverage and ExplanationOfBenefit endpoints for Part A, B, C and D.

4. EOB data

   Carrier, DME, inpatient, outpatient, SNF, HHA, hospice and PDE claim types in EOB.

5. Data dictionary

   CCW variable names mapped to FHIR elements.

6. Sandbox

   Synthetic beneficiaries for testing apps without real data.

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