This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions icon ValueSet http://hl7.org/fhir/ValueSet/measure-population

Clinical Quality Information icon Work Group Maturity Level: 4Trial Use Use Context: Country: World
Official URL: http://hl7.org/fhir/ValueSet/measure-population Version: 6.0.0-cibuild
draft as of 2020-12-28 Computable Name: MeasurePopulationType
Flags: Immutable OID: 2.16.840.1.113883.4.642.3.765

This value set is used in the following places:

The type of population.


This expansion generated 22 Apr 2024

Expansion based on codesystem MeasurePopulationType v1.0.0 (CodeSystem) icon

This value set contains 9 concepts.

  initial-population iconhttp://terminology.hl7.org/CodeSystem/measure-populationInitial Population

The initial population criteria refers to all patients, subjects, or events to be evaluated by a quality measure involving patients or subjects who share a common set of specified characterstics. All patients, subjects, or events counted (for example, as numerator, as denominator) are drawn from the initial population.

  numerator iconhttp://terminology.hl7.org/CodeSystem/measure-populationNumerator

The numerator statement describes the process, condition, event, or outcome that satisfies the measure’s focus or intent. The numerator statement includes parameters such as: *the Event or events that will satisfy the numerator inclusion criteria *the Performance period or time interval in which the numerator event must occur, if it is different from that used for identifying the denominator.

Source: https://mmshub.cms.gov/measure-lifecycle/measure-specification/develop-specification/numerator

  numerator-exclusion iconhttp://terminology.hl7.org/CodeSystem/measure-populationNumerator Exclusion

Numerator exclusion criteria define patients, subjects, or events to be excluded from the numerator. Numerator exclusions are used in proportion and ratio measures to help narrow the numerator (for inverted measures).

  denominator iconhttp://terminology.hl7.org/CodeSystem/measure-populationDenominator

Denominator criteria define the patients, subjects, or events that should be included in the lower portion of a fraction used to calculate a rate, proportion, or ratio. The denominator can be the same as the initial population, or a subset of the initial population to further constrain the population for the purpose of the measure.

  denominator-exclusion iconhttp://terminology.hl7.org/CodeSystem/measure-populationDenominator Exclusion

Denominator exclusion criteria define patients, subjects, or events that should be excluded from the denominator. Denominator exclusions are used in proportion and ratio measures to help narrow the denominator. For example, patients with bilateral lower extremity amputations would be listed as a denominator exclusion for a measure requiring foot exams.

  denominator-exception iconhttp://terminology.hl7.org/CodeSystem/measure-populationDenominator Exception

Denominator exceptions are conditions that should remove a patient, subject, or event from the denominator of a measure only if the numerator criteria are not met. Denominator exception allows for adjustment of the calculated score for those providers with higher risk populations. Denominator exception criteria are only used in proportion measures.

  measure-population iconhttp://terminology.hl7.org/CodeSystem/measure-populationMeasure Population

Measure population criteria define the patients, subjects, or events for which the individual observation for the measure should be taken. Measure populations are used for continuous variable measures rather than numerator and denominator criteria.

  measure-population-exclusion iconhttp://terminology.hl7.org/CodeSystem/measure-populationMeasure Population Exclusion

Measure population exclusion criteria define the patients or events that should be excluded from the measure population before determining the outcome of one or more continuous variables defined for the measure observation. Measure population exclusion criteria are used within continuous variable measures to help narrow the measure population.

  measure-observation iconhttp://terminology.hl7.org/CodeSystem/measure-populationMeasure Observation

Measure observation criteria are used to define an individual observation to be performed for each patient, subject, or event in the measure population. Measure observations for each case in the population are aggregated to determine the overall measure score for the population.


See the full registry of value sets defined as part of FHIR.

Explanation of the columns that may appear on this page:

LvlA few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code