Community Projects - cqframework/clinical_quality_language GitHub Wiki

This page lists known community projects related to Clinical Quality Language. If you have a community project, feel free to add it here!

The projects are divided into two broad categories, tooling and content development:

Tooling: Projects related to implementation of CQF projects (such as translators, engines, publication tooling, etc)
Content: Projects that are using CQF-related standards to build content

Tooling

Java CQL-to-ELM Translator, Formatter, and Engine

https://github.com/cqframework/clinical_quality_language: CQL-to-ELM Translator, Java CQL Engine

JavaScript Execution Engine

https://github.com/cqframework/cql-execution: Java-Script Execution Engine
https://github.com/cqframework/cql-exec-fhir: A FHIR data source provider for the CQL Execution framework
https://github.com/cqframework/cql-exec-vsac: A VSAC-enabled value set provider for the CQL Execution framework
https://github.com/cqframework/cql-exec-examples: Simple examples demonstrating how to use cql-execution, cql-exec-fhir, and cql-exec-vsac

Microsoft .NET CQL Support

https://github.com/FirelyTeam/firely-cql-sdk: This is NCQA's and Firely's official support SDK for working with CQL on the Microsoft .NET (dotnet) platform. It contains an engine for executing ELM, and/or turning the contents of an ELM file into a .NET assembly so it can be called statically.

Go CQL Support

https://github.com/google/cql: An experimental CQL execution engine for analyzing FHIR healthcare data at scale
https://github.com/google/cql/blob/main/cmd/cqlplay/README.md: An experimental web playground for CQL

CQL Translation Service

https://github.com/cqframework/cql-translation-service: RESTful service for translating CQL to ELM

CQL-based Capabilities

https://www.npmjs.com/package/encender: JS implementation of $apply
https://github.com/dbcg/cql-evaluator: Java implementation of $cql, $evaluate, $evaluate-measure, and $apply
https://github.com/google/android-fhir#workflow-library: Android FHIR SDK support for $evaluate-measure and $apply

CQL Execution Service

https://github.com/dbcg/cql_execution_service
https://github.com/AHRQ-CDS/AHRQ-CDS-Connect-CQL-SERVICES: Expose CQL via Custom-API or CDS Hooks interface (built on JavaScript CQL Execution Engine)

CQL Authoring

https://github.com/Path-Check/cql-editor-app: Android CQL compiler
https://github.com/DBCG/cql_runner: Web-based CQL Authoring
https://github.com/cqframework/atom-cql-support: Atom IDE plugin (deprecated, use the VS Code plugin instead)
https://github.com/cqframework/vscode-cql: VS Code IDE plugin
https://sandbox.cqlab.io/: Web-based CQL and clinical reasoning artifact authoring environment
https://thespark.dev: Web-based CQL and clinical reasoning artifact authoring environment (Documentation
https://reason.health/articles/introducing-rh-skills: Agentic framework for computable knowledge from Reason Health

CDS Connect Authoring Tool: Community Edition

https://cqlstudio.com/: Integrated Development Environment for CQL-based knowledge artifact development
https://studio.quality.hl7.org/: HL7 Foundry entry for CQL Studio

CDS Connect (AHRQ)

Note that the current state of this project is closed. The CDS Connect Authoring Tool has been forked as CDS Connect Authoring Tool: Community Edition. The artifacts that were available as part of CDS Connect repository have been archived.

https://cds.ahrq.gov/: Repository of CDS including CQL-based artifacts
https://cds.ahrq.gov/authoring/: CDS Authoring Tool capable of exporting FHIR-based CQL logic
https://github.com/AHRQ-CDS/AHRQ-CDS-Connect-Authoring-Tool: CDS Authoring Tool Source Code

CQL Testing

https://github.com/AHRQ-CDS/CQL-Testing-Framework Java-script CQL Testing Framework
https://github.com/cqframework/cql-tests Specification test cases to establish and demonstrate engine capability and conformance
https://github.com/cqframework/cql-tests-runner Simple JavaScript runner for the cql-tests
https://github.com/cqframework/cql-tests-results Repository for engines to report testing results
https://github.com/carreraGroup/cqf-bench CQFramework Benchmarking suite from Carrera Group

CQL Server-side Functionality

https://om.rs/productdashboard: OpenMRS Product Roadmap
https://github.com/samply/blaze: A FHIR® server with internal, fast CQL Evaluation Engine
https://github.com/dbcg/cqf-ruler: HAPI FHIR server plugin to enable CQL evaluation and Clinical Reasoning functionality
https://github.com/PheMA/cql-on-omop: Translates CQL (ELM) to OMOP for evaluation against an OHDSI repository
https://github.com/DBCG/spark-cql-fhir: Demonstration of a Spark-CQL pipeline
https://github.com/IBM/FHIR: An open source FHIR server implementation that includes CQL and Clinical Reasoning functionality
https://github.com/google/cql-on-beam: Using Apache Beam to evaluate CQL libraries

CQL Tooling

https://github.com/cqframework/cqf-tooling: Tooling to support CQL library tooling and other handy utilities related to CQL-based FHIR content
https://github.com/projecttacoma/fhir-patient-generator: Tooling to generate FHIR patients for eCQM testing

Content

The projects listed here provide a catalog of known CQF-related content development projects. The projects listed here are all independently funded and managed.

CQF Common

CQF Common - Common CQF Assets (FHIRHelpers, FHIR-ModelInfo, etc) (published)
Using CQL With FHIR - Latest version of FHIRHelpers, FHIR-ModelInfo, and FHIRCommon and FHIR-based authoring guidance
CQL US Common - USCoreCommon, USCoreElements, and US-based authoring patterns

Digital Quality Measures

dQM CMS 2026 - Latest Digital Quality Measure draft content for testing and connectathon support of advanced quality reporting features (CI Build)
dQM CMS 2025 - Draft CMS 2025AU content refactored to use the USQualityCore 0.1.0-cibuild, and US Core 6.1.0-derived models (CI Build)
dQM CMS QICore 2025 - Draft CMS 2025AU content as exported from MADiE using QICore 6.0.0 (CI Build)
dQM Content - Full index of FHIR-based Quality Measure draft, testing, and connectathon content