The Secretary adopts the following application programming interface (API) standards and associated implementation specifications:

(a)

(1) Standard. HL7® Fast Healthcare Interoperability Resources (FHIR ®) Release 4.0.1 (incorporated by reference in §170.299).

(2) Implementation specification. HL7 FHIR® US Core Implementation Guide STU 3.1.1 (incorporated by reference in §170.299).

(3) Implementation specification. HL7 SMART Application Launch Framework Implementation Guide Release 1.0.0, including mandatory support for the “SMART Core Capabilities” (incorporated by reference in §170.299).

(4) Implementation specification. FHIR Bulk Data Access (Flat FHIR) (v1.0.0: STU 1), including mandatory support for the “group-export” “OperationDefinition” (incorporated by reference in §170.299).

(b) Standard. OpenID Connect Core 1.0, incorporating errata set 1 (incorporated by reference in §170.299).

[85 FR 25941, May 1, 2020, as amended at 85 FR 70082, Nov. 4, 2020]