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

## Extension: CQM Limitations

Official URL: http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-limitations | Version: 1.0.0 | Highlight text changes?
Standards status: Trial-use Active as of 2026-04-07 | Maturity Level: 4 | Computable Name: CQMLimitations
Other Identifiers: OID:2.16.840.1.113883.4.642.40.61.42.19

The CQM Limitations profile identifies what limitations should be noted, including potential selection biases and confounding factors when interpreting indicator results or comparing results across the country.

Context of Use

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

- Element ID: `Measure`
- Element ID: `MeasureReport`

Usage info

Usages:

- Use this Extension: CQM Publishable Measure
- Examples for this Extension: MeasureCQMPublishableExample

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..1 | Extension | Extension
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-limitations"
value[x] |  | 0..1 | markdown | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Extension
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-limitations"
value[x] |  | 0..1 | markdown | 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 markdown: The CQM Limitations profile identifies what limitations should be noted, including potential selection biases and confounding factors when interpreting indicator results or comparing results across the country.

Maturity: 4

Differential ViewDifferential View

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

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Extension
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-limitations"
value[x] |  | 0..1 | markdown | 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 markdown: The CQM Limitations profile identifies what limitations should be noted, including potential selection biases and confounding factors when interpreting indicator results or comparing results across the country.

Maturity: 4

Other representations of profile: CSV, Excel, Schematron