The Public Comment is now open through March 25, 2026 on the Draft 2027 CMS QRDA I Implementation Guide, Schematron, and Sample File for Hospital Quality Reporting
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CQL Overview
- CQL 1.5 and Quality Data Model (QDM) v5.6 Overview Slides - September 2, 2021
Teach Me CQL Video Series (Video shorts can be viewed in any order)
CQL is data-model agnostic. As a result, the videos below may demonstrate CQL examples using either the QDM model or the FHIR QI-Core model.
- Day of versus Date From and Timing Comparisons - YouTube Video Short - August 2024
- Fluent Functions - YouTube Video Short - July 2024
- Hospitalization with Observation - YouTube Video Short - July 2024
- AND OR Precedence - YouTube Video Short - July 2023
- Open and Closed Parentheses - YouTube Video Short - July 2023
- Choice Types - YouTube Video Short - June 2023
- Birth Date - YouTube Video Short - June 2023
- Latest, LatestOf, Earliest, EarliestOf, HasStart, HasEnd - YouTube Video Short - August 2022
- Coalesce - YouTube Video Short - August 2022
- Normalize Interval - YouTube Video Short - July 2022
- Time Zone Considerations - YouTube Video Short - July 2022
Cooking with CQL Sessions
- Cooking with CQL, QDM, and FHIR® Monthly Webinar Slides - Updated January 2026
- Visit the Cooking with CQL Examples GitHub page to review agendas, examples, and recordings from the most recent Cooking with CQL sessions.
- Visit the Cooking with CQL Q&A All Categories GitHub page to review all the questions and answers from the past Cooking with CQL sessions.
To review common questions and answers about CQL, visit the eCQI Center's FAQs page and expand the Clinical Quality Language topic.