Quality Measure Implementation Guide
2.0.0-ballot - STU 2 Ballot International flag

This page is part of the Quality Measure Implementation Guide (v2.0.0-ballot: STU 2 Ballot) based on FHIR (HL7® FHIR® Standard) R4. This version is a pre-release. The current official version is 1.0.0. For a full list of available versions, see the Directory of published versions

Extension: CQM Rate Aggregation

Official URL: http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-rateAggregation Version: 1.0.0
Standards status: Trial-use Active as of 2026-04-07 Maturity Level: 4 Computable Name: CQMRateAggregation
Other Identifiers: OID:2.16.840.1.113883.4.642.40.61.42.24

Describes how to combine the information calculated, based on logic in each of several populations, into one summarized result.

Context of Use

    This extension may be used on the following element(s)

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension How is rate aggregation performed for this measure
... url 1..1 uri "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-rateAggregation"
... value[x] 0..1 string Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension How is rate aggregation performed for this measure
... id 0..1 string Unique id for inter-element referencing
... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
... url 1..1 uri "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-rateAggregation"

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type string: Describes how to combine the information calculated, based on logic in each of several populations, into one summarized result.

Maturity: 4

Differential ViewDifferential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension How is rate aggregation performed for this measure
... url 1..1 uri "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-rateAggregation"
... value[x] 0..1 string Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension How is rate aggregation performed for this measure
... id 0..1 string Unique id for inter-element referencing
... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
... url 1..1 uri "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-rateAggregation"

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type string: Describes how to combine the information calculated, based on logic in each of several populations, into one summarized result.

Maturity: 4

 

Other representations of profile: CSV, Excel, Schematron