Using CQL with FHIR
1.1.0-cibuild - CIBuild International flag

Using CQL with FHIR, published by HL7 International / Clinical Decision Support. This guide is not an authorized publication; it is the continuous build for version 1.1.0-cibuild built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/cql-ig/ and changes regularly. See the Directory of published versions

Library: CQL Example (Experimental)

Official URL: http://hl7.org/fhir/uv/cql/Library/CQLExample Version: 1.1.0-cibuild
Active as of 2024-06-10 Computable Name: CQLExample
Other Identifiers: OID:2.16.840.1.113883.4.642.40.37.28.2

Example CQL Library illustrating the CQL Profile (a Library with only text/cql content)

Related Artifacts

depends-onFHIR model informationhttp://fhir.org/guides/cqf/common/Library/FHIR-ModelInfo|4.0.1
depends-onLibrary FHIRHelpershttp://fhir.org/guides/cqf/common/Library/FHIRHelpers|4.0.1
depends-onCode system LOINCLogical Observation Identifiers, Names and Codes (LOINC)

Parameters

GlucoseThresholdin01Quantity
Patientout01Patient
Blood Glucose Observationsout0*Observation

Data Requirements

Type: Patient (Patient)
Type: Observation (Observation)
FilterValue
codeOne of these codes: Logical Observation Identifiers, Names and Codes (LOINC) 2339-0: Glucose Bld-mCnc

Contents

text/cql

library CQLExample

using FHIR version '4.0.1'

include FHIRHelpers version '4.0.1'

codesystem LOINC: 'http://loinc.org'
code "Blood Glucose": '2339-0' from LOINC display 'Glucose Bld-mCnc'

parameter GlucoseThreshold Quantity

context Patient

define "Blood Glucose Observations":
  [Observation: "Blood Glucose"] BG
    where BG.value > GlucoseThreshold