Quality Improvement Core Framework (v3.3.0: STU 4 Ballot 1). The current version is 3.2.0 based on FHIR R4. See the Directory of published versions
This page lists the Extensions defined as part of the QI Core Implementation Guide. A registry of standard extensions can be found in the FHIR specification and additional extensions may be registered on the HL7 FHIR registry at http://hl7.org/fhir/registry.