Back to top
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


The Health Level Seven International® (HL7®) Quality Improvement Core (QI-Core) Implementation Guide (IG) defines a set of Fast Healthcare Interoperability Resources® (FHIR®) profiles with extensions and bindings needed to create interoperable, quality-focused applications. The profiles in this IG derive from and extend the US Core profiles to provide a common foundation for building, sharing, and evaluating knowledge artifacts across quality improvement efforts in the US Realm.

The sponsoring HL7 workgroup, Clinical Quality Information (CQI), manages changes to this FHIR IG, which are incorporated as part of the standard balloting process. The current roadmap follows closely behind the base FHIR roadmap and the US Core IG.

To assist measure developers and implementers in the transition from QDM-based eCQMs to FHIR-based eCQMs, CQI developed the QDM to QI-Core Mapping. Each version of the QI-Core publication updates details related to applicable specifications.

Who Uses Tool
CDS Developer/Steward
Eligible Hospital / Critical Access Hospital
Eligible Clinician
Health IT Developer/Vendor
Measure Developer/Steward
Last Updated: Feb 12, 2024