Profile Comparison between http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-populationBasis vs http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-populationBasis

Messages

Metadata

Name	Value		Comments
abstract	false
baseDefinition	http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
copyright
date	2026-09-16T06:16:00+10:00	2026-10-25T18:19:23+00:00	Values Differ
description	The population basis specifies the type of elements in the population. For a subject-based measure, this is boolean (because the subject and the population basis are the same, and the population criteria define yes/no values for each individual in the population). For measures that have a population basis that is different than the subject, this element specifies the type of the population basis. For example, an encounter-based measure has a subject of Patient and a population basis of Encounter, and the population criteria all return lists of Encounters. Note that the subject of a measure can be found in the element [subject[x].](https://hl7.org/fhir/uv/cqm/StructureDefinition-cqm-computablemeasure-definitions.html#Measure.subject[x])
experimental	false
fhirVersion	4.0.1
jurisdiction
jurisdiction / jurisdiction[0]	http://unstats.un.org/unsd/methods/m49/m49.htm#001
kind	complex-type
name	CQMPopulationBasis
publisher	HL7 International / Clinical Quality Information
purpose	A measure specification needs to be able to specify the expected result type of each population criteria. This value SHALL be consistent with the result type of all population-level criteria in the measure.
status	active
title	CQM Population Basis
type	Extension
url	http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-populationBasis
version	2.0.0	3.0.0-ballot	Values Differ

Structure

Name	L Flags	L Card.	L Type	L Description & Constraints	R Flags	R Card.	R Type	R Description & Constraints	Comments
Extension	C	0..*	Extension(4.0.1)	What type of population Constraints: popBasis-1	C	0..*	Extension(4.0.1)	What type of population Constraints: popBasis-1
Extension.id		0..1	string	Unique id for inter-element referencing		0..1	string	Unique id for inter-element referencing
Extension.Slices for extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
Extension.url		1..1	uri	"http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-populationBasis"		1..1	uri	"http://hl7.org/fhir/uv/cqm/StructureDefinition/cqm-populationBasis"
Extension.value[x]		0..1	code, DataRequirement	Value of extension Binding: ?? (required): The type of elements in the population		0..1	code, DataRequirement	Value of extension Binding: ?? (required): The type of elements in the population
Documentation for this format