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The Clinical Quality Language Specification defines a representation for the expression of clinical knowledge that can be used within both the Clinical Decision Support (CDS) and Clinical Quality Measurement (CQM) domains.

Clinical Quality Language is co-sponsored by the Clinical Quality Information Home.

Project Information

Project Insight 1108

CQL Specification Repository:

CQL Tooling Repository:

CQL Page on the eCQI Resource Center:

Getting Started with CQL

Meeting Information

Clinical Quality Language comments and issues are discussed on a regular basis in the Clinical Decision Support Work Group weekly meeting.


Clinical Quality Language Published Product Brief:

Clinical Quality Language Published Specification:

CQL was successfully balloted as STU 4 in the May 2019 cycle and has been published.

STU comments can be submitted here:

The CDS Work Group reviews STU comments on the weekly CDS WG call, Wednesdays at 12:00ET.

The CDS Work Group will ballot the CQL Specification Normative in the May 2020 cycle. See the CQL Ballot Plan for more details.

Projects Related to Clinical Quality Language


Reference Implementations and Community Projects:

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