FHIR Extensions Pack v5.3.0-ballot-tc1 (2025-08-03)

This page is part of the FHIR Core Extensions Registry (v5.3.0-ballot-tc1: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This version is a pre-release. The current official version is 5.2.0. For a full list of available versions, see the Directory of published versions

ElementDefinition Detail - Extensions

FHIR Infrastructure Work GroupMaturity Level: N/AStandards Status: InformativeSecurity Category: N/A Compartments: N/A

This table lists extensions for the ElementDefinition data type defined in association with the core specification. For background information, see Extensibility. Additional extensions may be found in published Implementation Guides and in the Conformance resource registry .

Identity Card. Type Context WG Status Δ v5.2.0
Extensions defined for the ElementDefinition data type
11179-objectClass 0..1 Coding ElementDefinition.mapping fhir Trial-Use : FMM3 n/c
11179-objectClassProperty 0..1 Coding ElementDefinition.mapping fhir Trial-Use : FMM3 n/c
cqf-shouldTraceDependency 0..1 boolean StructureDefinition , ElementDefinition cds Trial-Use : FMM1 n/c
designNote 0..1 markdown Questionnaire , Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 n/c
elementdefinition-allowedUnits 0..1 (Choice) ElementDefinition fhir Trial-Use : FMM3 n/c
elementdefinition-bestpractice 0..1 (Choice) ElementDefinition.constraint , http://hl7.org/fhir/StructureDefinition/targetConstraint fhir Trial-Use : FMM3 n/c
elementdefinition-bestpractice-explanation 0..1 markdown ElementDefinition.constraint , http://hl7.org/fhir/StructureDefinition/targetConstraint fhir Trial-Use : FMM3 n/c
elementdefinition-bindingName 0..1 string ElementDefinition.binding , OperationDefinition.parameter.binding fhir Trial-Use : FMM3 n/c
elementdefinition-defaulttype 0..1 canonical ElementDefinition fhir Trial-Use : FMM2 icon Changed:
elementdefinition-equivalence 0..1 code ElementDefinition.mapping fhir Trial-Use : FMM3 n/c
elementdefinition-graphConstraint 0..1 canonical ElementDefinition.type.targetProfile fhir Trial-Use : FMM2 icon Changed:
elementdefinition-identifier 0..* Identifier ElementDefinition fhir Deprecated : FMM3 n/c
elementdefinition-inheritedExtensibleValueSet 0..* (Choice) ElementDefinition.binding fhir Trial-Use : FMM3 n/c
elementdefinition-isCommonBinding 0..1 boolean ElementDefinition.binding fhir Trial-Use : FMM3 n/c
elementdefinition-maxValueSet 0..1 (Choice) ElementDefinition.binding fhir Deprecated : FMM3 n/c
elementdefinition-minValueSet 0..1 (Choice) ElementDefinition.binding fhir Deprecated : FMM3 n/c
elementdefinition-namespace 0..1 uri ElementDefinition , StructureDefinition fhir Deprecated : FMM1 n/c
elementdefinition-pattern 0..1 canonical ElementDefinition.type fhir Trial-Use : FMM2 icon Changed:
elementdefinition-profile-element 0..1 string ElementDefinition.type.profile fhir Trial-Use : FMM3 icon Changed:
elementdefinition-question 0..* string ElementDefinition fhir Trial-Use : FMM3 n/c
elementdefinition-selector 0..1 string ElementDefinition fhir Deprecated : FMM3 n/c
elementdefinition-suppress 0..1 boolean ElementDefinition.comment , ElementDefinition.requirements , ElementDefinition.alias ,
ElementDefinition.example , ElementDefinition.mapping , ElementDefinition.label ,
ElementDefinition.code 		fhir Experimental
Draft : FMM1 		n/c
elementdefinition-translatable 0..1 boolean ElementDefinition fhir Trial-Use : FMM3 n/c
elementdefinition-type-must-support 0..1 boolean ElementDefinition.type , ElementDefinition.type.profile , ElementDefinition.type.targetProfile fhir Trial-Use : FMM2 icon Changed:
entryFormat 0..1 string Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
maxDecimalPlaces 0..1 (Choice) Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
maxSize 0..1 decimal Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
mimeType 0..* code Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
minLength 0..1 integer Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
narrative-source-control 0..1 code ElementDefinition fhir Trial-Use : FMM2 icon Added:
obligation 0..* (complex) ElementDefinition , StructureDefinition , ElementDefinition.type fhir Trial-Use : FMM1 icon Changed:
preferredTerminologyServer 0..* url Questionnaire , Questionnaire.item , ElementDefinition fhir Trial-Use : FMM4 n/c
preferredValueAlternatives 0..1 canonical ElementDefinition fhir Trial-Use : FMM1 icon Added:
questionnaire-baseType 0..1 code Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 n/c
questionnaire-choiceOrientation 0..1 code Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-constraint 0..* (complex) Questionnaire , Questionnaire.item , ElementDefinition fhir Deprecated : FMM3 icon Changed:
questionnaire-displayCategory 0..1 CodeableConcept Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-hidden 0..1 boolean Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-itemControl 0..1 CodeableConcept Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-optionRestriction 0..* (Choice) Questionnaire.item , ElementDefinition fhir Trial-Use : FMM2 icon Changed:
questionnaire-referenceFilter 0..1 string Questionnaire.item , ElementDefinition fhir Deprecated : FMM3 n/c
questionnaire-referenceProfile 0..* canonical Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-referenceResource 0..* code Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-signatureRequired 0..* CodeableConcept Questionnaire , Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-sliderStepValue 0..1 integer Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-supportLink 0..* uri Questionnaire.item , ElementDefinition fhir Deprecated : FMM3 icon Changed:
questionnaire-unit 0..1 Coding Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 n/c
questionnaire-unitOption 0..* Coding Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-unitValueSet 0..1 canonical Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
questionnaire-usageMode 0..1 code Questionnaire.item , ElementDefinition fhir Trial-Use : FMM3 icon Changed:
regex 0..1 string Questionnaire.item , ElementDefinition fhir Deprecated : FMM1 n/c
structuredefinition-display-hint 0..1 string ElementDefinition fhir Trial-Use : FMM3 n/c
structuredefinition-explicit-type-name 0..1 string ElementDefinition fhir Trial-Use : FMM3 n/c
structuredefinition-fhir-type 0..1 url ElementDefinition.type fhir Trial-Use : FMM3 n/c
structuredefinition-hierarchy 0..1 boolean ElementDefinition.type fhir Trial-Use : FMM3 n/c
structuredefinition-normative-version 0..1 code CanonicalResource , ElementDefinition fhir Trial-Use : FMM3 n/c
structuredefinition-standards-status 0..1 code CanonicalResource , CodeSystem.concept , StructureDefinition.context ,
SearchParameter.base , ElementDefinition , ElementDefinition.type ,
ElementDefinition.type.targetProfile , OperationDefinition.parameter ,
OperationDefinition.parameter.type , OperationDefinition.parameter.allowedType ,
OperationDefinition.parameter.targetProfile , ImplementationGuide.definition.page 		fhir Trial-Use : FMM3 n/c

(See also Extensions defined on BackboneType )

60 Extensions