HL7.FHIR.US.CQFMEASURES\AggregateMethod

This page is part of the Quality Measure STU2 for FHIR R4 Implementation Guide (v2.1.0: STU3 Ballot 1) based on FHIR R4. The current version which supercedes this version is 3.0.0. For a full list of available versions, see the Directory of published versions

Extension: AggregateMethod

Specifies which method to be used to aggregate the measure observation values.

The official URL for this extension is:

http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod

Status: active
Extension maintained by: Clinical Quality Information WG

Context of Use

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

Measure.group.population

Usage info

Usage:

Use this Extension: CQFMContinuousVariableMeasure, CQFMRatioMeasure

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

Text Summary
Differential Table
Snapshot Table
All

This structure is derived from Extension

Summary

Fixed Value: 1 element

This structure is derived from Extension

Name	Card.	Type	Description & Constraints
Extension	0..1	Extension	Aggregate with
url	1..1	uri	"http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod"
value[x]	0..1	code	Value of extension Binding: Measure Aggregate Method (required): Aggregation method for a measure (e.g. sum, average, median, minimum, maximum, count)
Documentation for this format

Name	Card.	Type	Description & Constraints
Extension	0..1	Extension	Aggregate with
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/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod"
value[x]	0..1	code	Value of extension Binding: Measure Aggregate Method (required): Aggregation method for a measure (e.g. sum, average, median, minimum, maximum, count)
Documentation for this format

This structure is derived from Extension

Summary

Fixed Value: 1 element

Differential View

This structure is derived from Extension

Name	Card.	Type	Description & Constraints
Extension	0..1	Extension	Aggregate with
url	1..1	uri	"http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod"
value[x]	0..1	code	Value of extension Binding: Measure Aggregate Method (required): Aggregation method for a measure (e.g. sum, average, median, minimum, maximum, count)
Documentation for this format

Snapshot View

Name	Card.	Type	Description & Constraints
Extension	0..1	Extension	Aggregate with
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/us/cqfmeasures/StructureDefinition/cqfm-aggregateMethod"
value[x]	0..1	code	Value of extension Binding: Measure Aggregate Method (required): Aggregation method for a measure (e.g. sum, average, median, minimum, maximum, count)
Documentation for this format

Other representations of extension: Schematron

Terminology Bindings

Path	Conformance	ValueSet
Extension.value[x]	required	MeasureAggregateMethod

Constraints

Id	Path	Details	Requirements
ele-1	Extension	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	Extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	Extension.extension	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	Extension.extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	Extension.value[x]	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())