Quality Measure Implementation Guide
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Quality Measure Implementation Guide - Downloaded Version null See the Directory of published versions

## Extension: CQM Component

Official URL: http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-component | Version: 1.0.0 | Highlight text changes?
Standards status: Trial-use Active as of 2026-04-07 | Maturity Level: 4 | Computable Name: CQMComponent
Other Identifiers: OID:2.16.840.1.113883.4.642.40.61.42.5

Specifies an artifact this is a component of a composite artifact.

Context of Use

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

- Element ID: `Measure.group`

Usage info

Usages:

- Use this Extension: CQM Composite Measure and CQM Computable Measure
- Examples for this Extension: MultiRateExample

You can also check for usages in the FHIR IG Statistics

### Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | What artifact
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-component"
value[x] |  | 0..1 | RelatedArtifact | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | What artifact
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-component"
value[x] |  | 0..1 | RelatedArtifact | Value of extension
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 RelatedArtifact: Specifies an artifact this is a component of a composite artifact.

Maturity: 4

Differential ViewDifferential View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | What artifact
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-component"
value[x] |  | 0..1 | RelatedArtifact | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | What artifact
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-component"
value[x] |  | 0..1 | RelatedArtifact | Value of extension
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 RelatedArtifact: Specifies an artifact this is a component of a composite artifact.

Maturity: 4

Other representations of profile: CSV, Excel, Schematron