This page is part of the FHIR Core Extensions Registry (v5.1.0: Release 5.1) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions

• ElementDefinition Detail
• Examples
• Detailed Descriptions
• Mappings
• Profiles
• Extensions
• R4 Conversions

ElementDefinition Detail - Extensions

FHIR Infrastructure Work Group

Maturity Level: N/A

Standards Status: Informative

Security 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	Conf.	Type	Context	WG	Status	Δ v1.0.0	(See also Extensions defined on BackboneType
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	Added
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	n/c
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	n/c
elementdefinition-identifier	0..*	Identifier	ElementDefinition	fhir	Trial-Use: 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	Trial-Use: FMM3	n/c
elementdefinition-minValueSet	0..1	(Choice)	ElementDefinition.binding	fhir	Trial-Use: FMM3	n/c
elementdefinition-pattern	0..1	canonical	ElementDefinition.type	fhir	Trial-Use: FMM2	n/c
elementdefinition-profile-element	0..1	string	ElementDefinition.type.profile	fhir	Trial-Use: FMM3	n/c
elementdefinition-question	0..*	string	ElementDefinition	fhir	Trial-Use: FMM3	n/c
elementdefinition-selector	0..1	string	ElementDefinition	fhir	Trial-Use: FMM3	n/c
elementdefinition-suppress	0..1	boolean	ElementDefinition.comment, ElementDefinition.requirements, ElementDefinition.alias, ElementDefinition.example, ElementDefinition.mapping, ElementDefinition.label, ElementDefinition.code	fhir	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	n/c
entryFormat	0..1	string	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
maxDecimalPlaces	0..1	integer	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
maxSize	0..1	decimal	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
mimeType	0..*	code	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
minLength	0..1	integer	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
obligation	0..*	(complex)	ElementDefinition, StructureDefinition, ElementDefinition.type	fhir	Draft: FMM1	Changed
questionnaire-baseType	0..1	code	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
questionnaire-constraint	0..*	(complex)	Questionnaire, Questionnaire.item, ElementDefinition	fhir	Deprecated: FMM3	Changed
questionnaire-hidden	0..1	boolean	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
questionnaire-itemControl	0..1	CodeableConcept	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
questionnaire-signatureRequired	0..*	CodeableConcept	Questionnaire, Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
questionnaire-supportLink	0..*	uri	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	n/c
questionnaire-usageMode	0..1	code	Questionnaire.item, ElementDefinition	fhir	Trial-Use: FMM3	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.targetProfile, OperationDefinition.parameter, OperationDefinition.parameter.type, OperationDefinition.parameter.allowedType, OperationDefinition.parameter.targetProfile, ImplementationGuide.definition.page	fhir	Trial-Use: FMM3	n/c