Quality Measure Implementation Guide
1.0.0 - STU 1 International flag

This page is part of the Quality Measure Implementation Guide (v1.0.0: STU 1) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Library: EXM Aggregate (Experimental)

Official URL: http://hl7.org/fhir/uv/cqm/Library/EXMAggregate Version: 1.0.0
Standards status: Informative Computable Name: EXMAggregate
Other Identifiers: OID:2.16.840.1.113883.4.642.40.61.28.14

This library provides an example of logic for computing aggregates based on the results of measure calculations (i.e. aggregate calculation using MeasureReport resources).

Metadata
Title EXM Aggregate
Version 1.0.0
Identifier urn:oid:2.16.840.1.113883.4.642.40.61.28.14
Experimental true
Jurisdiction Global (Whole world)
Steward (Publisher) HL7 International / Clinical Quality Information
Description

This library provides an example of logic for computing aggregates based on the results of measure calculations (i.e. aggregate calculation using MeasureReport resources).
Type Logic Library
Parameter Name: Measurement Period
Use: In
Min Cardinality: 0
Max Cardinality: 1
Type: Period
Parameter Name: Location
Use: Out
Min Cardinality: 0
Max Cardinality: 1
Type: Location
Parameter Name: Initial Population
Use: Out
Min Cardinality: 0
Max Cardinality: *
Type: MeasureReport
Parameter Name: Measure Population
Use: Out
Min Cardinality: 0
Max Cardinality: *
Type: MeasureReport
Data Requirement Type: Location
Profile(s): Location
Data Requirement Type: MeasureReport
Profile(s): MeasureReport
Must Support Elements: measure, measure.value, status, status.value, date, date.value
Library Content
CQL Content 
library EXMAggregate

using FHIR version '4.0.1'

include hl7.fhir.uv.cql.FHIRHelpers version '4.0.1' called FHIRHelpers

parameter "Measurement Period" Interval<DateTime>

context Location

define "Initial Population":
  [MeasureReport] MR
    where MR.measure.value = 'http://example.org/fhir/Measure/malnutrition-assessment'
      and MR.status.value = 'complete'
      and MR.date.value during "Measurement Period"

define "Measure Population":
  "Initial Population"

/* Continuous variable measure with Sum as the aggregate method */
define function "Measure Observation"(measureReport MeasureReport):
  measureReport.group[0].measureScore.value.value
ELM XML Content 
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ELM JSON Content 
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