Clinical Quality Language Release 1

This page is part of the Clinical Quality Language Specification (v1.5.2: Normative - Normative) based on FHIR R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Clinical Decision Support Work GroupMaturity Level: NStandards Status: Normative

Expression Logical Model (ELM)

Expression Logical Model Schema Files are available here:

expression.xsd - Base expression schema

clinicalexpression.xsd - Clinical extensions to the base schema

cqlannotations.xsd - Cql annotations schema for including CQL source in ELM libraries

library.xsd - Library container schema

XML Types schema that defines CQL system types in an XML schema:

Model Info schema is available here:

modelinfo.xsd - Model info schema used by translation tooling to define model structures

Model info is an implementation detail included here for convenience, it is not a normative part of the CQL specification.