NCPI FHIR Implementation Guide v2
0.2.0 - ci-build

NCPI FHIR Implementation Guide v2 - Local Development build (v0.2.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Extension: Research Population

Official URL: https://nih-ncpi.github.io/ncpi-fhir-ig-2/StructureDefinition/research-population Version: 0.2.0
Draft as of 2025-12-03 Computable Name: ResearchPopulation

Code describing the population (CDC)

Context of Use

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

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

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

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Research Population
... extension 0..0 Extension
... url 1..1 uri "https://nih-ncpi.github.io/ncpi-fhir-ig-2/StructureDefinition/research-population"
... value[x] 0..1 Value of extension
.... valueString string
.... valueCodeableConcept CodeableConcept

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Research Population
... id 0..1 string Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "https://nih-ncpi.github.io/ncpi-fhir-ig-2/StructureDefinition/research-population"
.... valueString string
.... valueCodeableConcept CodeableConcept

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type string, CodeableConcept: Code describing the population (CDC)

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Research Population
... extension 0..0 Extension
... url 1..1 uri "https://nih-ncpi.github.io/ncpi-fhir-ig-2/StructureDefinition/research-population"
... value[x] 0..1 Value of extension
.... valueString string
.... valueCodeableConcept CodeableConcept

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Research Population
... id 0..1 string Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "https://nih-ncpi.github.io/ncpi-fhir-ig-2/StructureDefinition/research-population"
.... valueString string
.... valueCodeableConcept CodeableConcept

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type string, CodeableConcept: Code describing the population (CDC)

 

Other representations of profile: CSV, Excel, Schematron

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()