Clinical Quality Language Release 1 STU 3 (1.3)

This is the current officially released version of Clinical Quality Language, 1.3.
For a full list of available versions, see the Directory of published versions .

Clinical Decision Support Work GroupMaturity Level: 4Ballot Status: STU 3

Appendix C – Reference Implementations

As part of the Clinical Quality Framework effort, reference implementations of a CQL-ELM translator, a native ELM execution engine, and other CQL-related tools are in progress. This appendix provides a brief overview of where to find more information on these reference implementations.

1. CQL-ELM Translator Reference Implementation

The CQL-ELM Translator is a reference implementation for the translation of text-based CQL library documents into an XML or JSON representation using the ELM. The implementation was used in CQF pilots and has been integrated into production authoring environments for both Clinical Decision Support and Clinical Quality Measurement. The implementation can also be used as the first step in a process to enable distribution, translation, execution, and integration of CQL-based quality artifacts.

The CQL-ELM Translator is licensed under the open source Apache Version 2.0 license, and available as part of the clinical_quality_language project on GitHub: https://github.com/cqframework/clinical_quality_language.

For an overview of the project, along with current status, refer to the following document:

2. CQL Execution Framework Reference Implementation

A reference implementation for executing CQL is currently under development. This reference implementation was used in CQF pilots and has been integrated into production eCQM testing tools.

The CQL execution framework is licensed under the open source Apache Version 2.0 license, and available as part of the clinical_quality_language project on GitHub: https://github.com/cqframework/cql-execution.

For an overview of the project along with current status, refer to the following document:

Other CQL-related tools such as a graphical CQL grammar parsetree viewer, a ModelInfo generator, and a CQL syntax highlighting plugin for Atom are also available.

These tools are licensed under the open source Apache Version 2.0 license and available on GitHub: