2026 US Quality Core Implementation Guide
0.5.0 - cibuild US

2026 US Quality Core Implementation Guide, published by Office of the National Coordinator for Health Information Technology (ONC). This guide is not an authorized publication; it is the continuous build for version 0.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/FHIR/us-quality-core/ and changes regularly. See the Directory of published versions

## US Quality Core Extensions

This page lists the Extensions defined as part of the US Quality 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.

- US Quality Core Do Not Perform Reason
- US Quality Core Diagnosis Present on Admission
- US Quality Core IsElective
- US Quality Core Not Done Reason
- US Quality Core Not Done Recorded
- US Quality Core USCDI+ Quality Extension
- USQualityCore Not Done ValueSet
- USQualityCore Appropriateness Score