Back to top
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.

Https

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.

QDM - Quality Data Model

Receive updates on this topic

Current Version of the QDM in Use

The most recent version of the QDM is QDM v5.6. It was published January 2021 and lists all changes from QDM v5.5 Guidance Update in section 7.1 and highlights all data model changes throughout the document with red text.

Previous QDM Version Information

For reference, visit the Standards and Tools Versions Chart for more detail on versions used to create and/or support the implementation of the specific reporting/performance period specifications.

Visit the QDM FAQs page to review common questions and answers on QDM.

Find QDM Known Issues on the Clinical Quality Language (CQL) Formatting and Usage Wiki.

Last Updated: Jun 17, 2025

We want your feedback

For technical questions about eCQMs, please log in to the ONC Project Tracking System, specifically the eCQM Issue Tracker.

eCQI Resource Center Feedback pertains to:
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.