FHIR Extensions Pack v5.3.0 (2026-05-16)

This page is part of the FHIR Core Extensions Registry (v5.3.0: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

12.18.39 Resource ServiceRequest - Extensions

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

This table lists extensions for the ServiceRequest resource 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 ServiceRequest resource
businessEvent 0..* (complex) DiagnosticReport , ServiceRequest oo Draft : FMM1 n/c
external-communication 0..* Reference Appointment , CarePlan , CommunicationRequest , DeviceRequest , MedicationRequest ,
NutritionOrder , RequestOrchestration , ServiceRequest , VisionPrescription ,
Task 		oo Trial-Use : FMM1 icon Added:
patient-interpreterRequired 0..1 boolean Patient , RelatedPerson , Encounter , Practitioner , Appointment , ServiceRequest pa Trial-Use : FMM3 icon Changed:
perform-condition 0..1 M Expression ServiceRequest oo Draft : FMM1 icon Added:
procedure-approachBodyStructure 0..* Reference Procedure , ServiceRequest , DeviceRequest , DeviceUsage , DeviceUseStatement,
Specimen.collection 		pc Trial-Use : FMM3 n/c
procedure-directedBy 0..1 (Choice) Procedure , ServiceRequest pc Trial-Use : FMM3 n/c
procedure-targetBodyStructure 0..* Reference Procedure , ServiceRequest pc Trial-Use : FMM3 n/c
request-performerOrder 0..1 integer ServiceRequest.performer , Task.requestedPerformer fhir Trial-Use : FMM3 n/c
request-statusReason 0..1 CodeableConcept DeviceRequest , ServiceRequest , NutritionOrder , SupplyRequest fhir Trial-Use : FMM3 n/c
servicerequest-order-callback-phone-number 0..* ContactPoint ServiceRequest oo Trial-Use : FMM0 n/c
servicerequest-precondition 0..* CodeableConcept ServiceRequest oo Deprecated : FMM3 icon Changed:
servicerequest-questionnaireRequest 0..1 Reference ServiceRequest oo Trial-Use : FMM3 n/c
servicerequest-specimenSuggestion 0..* (complex) ServiceRequest oo Trial-Use : FMM1 icon Added:
workflow-compliesWith 0..* (Choice) CarePlan , CarePlan.activity.plannedActivityReference , CommunicationRequest ,
DeviceRequest , ImmunizationRecommendation , MedicationRequest , NutritionOrder ,
RequestOrchestration , RequestGroup, SupplyRequest , ServiceRequest ,
Task , VisionPrescription , ObservationDefinition , DeviceDefinition ,
SpecimenDefinition 		fhir Trial-Use : FMM2 icon Changed:
workflow-episodeOfCare 0..* Reference AdverseEvent , Appointment , Basic , CarePlan , ClinicalImpression , Communication ,
CommunicationRequest , Composition , Condition , Consent , DetectedIssue ,
DeviceRequest , DeviceUsage , DeviceUseStatement, DiagnosticReport ,
DocumentReference , EnrollmentRequest , EnrollmentResponse , FamilyMemberHistory ,
Flag , Goal , ImagingStudy , Immunization , ImmunizationEvaluation , ImmunizationRecommendation ,
Invoice , List , MeasureReport , MedicationAdministration , MedicationDispense ,
MedicationRequest , MedicationStatement , MolecularSequence , NutritionIntake ,
NutritionOrder , Observation , Procedure , QuestionnaireResponse , RequestOrchestration ,
RequestGroup, ResearchSubject , RiskAssessment , SupplyDelivery , SupplyRequest ,
VisionPrescription , ServiceRequest , ChargeItem 		fhir Trial-Use : FMM3 n/c
workflow-followOnOf 0..* Reference Task , DeviceRequest , ServiceRequest , Procedure , Encounter fhir Trial-Use : FMM2 icon Changed:
workflow-generatedFrom 0..1 canonical CarePlan , CarePlan.activity.plannedActivityReference , Communication ,
CommunicationRequest , DeviceRequest , FamilyMemberHistory , ImmunizationEvaluation ,
ImmunizationRecommendation , MedicationRequest , NutritionOrder , Procedure ,
RequestOrchestration , RequestGroup, SupplyRequest , ServiceRequest ,
Task , VisionPrescription 		fhir Trial-Use : FMM2 icon Changed:
workflow-releaseDate 0..1 dateTime Account , Appointment , ArtifactAssessment , CarePlan , CarePlan.activity ,
ClinicalImpression , Communication , CommunicationRequest , Contract ,
DeviceDispense , DeviceRequest , DeviceUsage , DeviceUseStatement, Encounter ,
Endpoint , EpisodeOfCare , Goal , MedicationAdministration , MedicationDispense ,
MedicationRequest , NutritionIntake , NutritionOrder , Procedure , RequestOrchestration ,
RequestGroup, ServiceRequest , SupplyRequest , Task 		fhir Trial-Use : FMM2 icon Changed:
workflow-researchStudy 0..* Reference Composition , Consent , DeviceUsage , DeviceUseStatement, DiagnosticReport ,
Encounter , FamilyMemberHistory , Immunization , DocumentReference , MedicationAdministration ,
MedicationDispense , MedicationStatement , Observation , Procedure , QuestionnaireResponse ,
RiskAssessment , ServiceRequest , SupplyDelivery , Task , ObservationDefinition 		fhir Trial-Use : FMM3 n/c
workflow-shallComplyWith 0..* (Choice) ActivityDefinition , Appointment , CarePlan , CommunicationRequest , DeviceRequest ,
ImmunizationRecommendation , Measure , MedicationRequest , NutritionOrder ,
OperationDefinition , PlanDefinition , RequestOrchestration , RequestGroup,
ServiceRequest , SupplyRequest , ObservationDefinition , DeviceDefinition ,
SpecimenDefinition , Task , VisionPrescription 		fhir Trial-Use : FMM2 icon Changed:
workflow-triggeredBy 0..1 (Choice) CarePlan , CarePlan.activity.plannedActivityReference , CommunicationRequest ,
DeviceRequest , Encounter , ImmunizationRecommendation , NutritionOrder ,
Procedure , RequestOrchestration , RequestGroup, SupplyRequest , ServiceRequest ,
Task , Condition , Communication , DiagnosticReport , DocumentReference ,
FamilyMemberHistory , Immunization , Observation , QuestionnaireResponse ,
SupplyDelivery , VisionPrescription , BiologicallyDerivedProductDispense ,
DeviceDispense , DeviceUsage , DeviceUseStatement, NutritionIntake ,
Transport 		fhir Trial-Use : FMM2 icon Changed:
Extensions defined for many resources including the ServiceRequest resource
datatype 0..1 string Base fhir Trial-Use : FMM2 icon Changed:
additionalImplicitRules 0..* uri DomainResource fhir Trial-Use : FMM4 icon Added:
artifact-authoritativeSource 0..1 uri DomainResource cds Trial-Use : FMM1 icon Added:
artifact-extended-contact-detail 0..* ExtendedContactDetail Resource cds Trial-Use : FMM2 icon Added:
artifact-isOwned 0..1 boolean RelatedArtifact , ActivityDefinition.library , PlanDefinition.library ,
Measure.library , DomainResource.extension , type.exists() and type = 'composed-of' 		cds Trial-Use : FMM1 n/c
artifact-jurisdiction 0..* CodeableConcept Resource cds Trial-Use : FMM2 icon Changed:
artifactassessment-disposition 0..1 code Resource cds Draft : FMM1 n/c
artifactassessment-workflowStatus 0..1 code Resource cds Draft : FMM1 n/c
cqf-artifactComment 0..* (complex) Resource cds Trial-Use : FMM3 n/c
cqf-citation 0..1 string Resource cds Trial-Use : FMM3 n/c
cqf-definitionTerm 0..1 (complex) Resource cds Trial-Use : FMM3 n/c
cqf-directReferenceCode 0..* Coding Resource cds Trial-Use : FMM2 n/c
cqf-knowledgeCapability 0..* code DomainResource cds Trial-Use : FMM2 n/c
cqf-knowledgeRepresentationLevel 0..* code DomainResource cds Trial-Use : FMM2 n/c
cqf-library 0..* canonical DomainResource cds Trial-Use : FMM3 icon Changed:
cqf-logicDefinition 0..* (complex) DomainResource cds Trial-Use : FMM2 n/c
cqf-measureInfo 0..* (complex) Resource , Reference cds Trial-Use : FMM3 n/c
cqf-messages 0..* Reference Resource cds Trial-Use : FMM3 n/c
cqf-scope 0..1 string Resource cds Trial-Use : FMM1 n/c
derivation-reference 0..* (complex) Resource , Element fhir Trial-Use : FMM2 icon Changed:
feature-assertion 0..* (complex) Resource fhir Draft : FMM2 icon Changed:
note 0..* Annotation Resource , Composition.section , Observation.component fhir Trial-Use : FMM1 n/c
obligations-profile 0..* (complex) Provenance.target , Resource.meta fhir Draft : FMM0 icon Changed:
package-source 0..* (complex) Resource , Meta fhir Trial-Use : FMM1 n/c
patient-sexParameterForClinicalUse 0..* (complex) Resource pa Draft : FMM1 icon Changed:
resource-instance-description 0..1 markdown Resource fhir Trial-Use : FMM2 icon Changed:
resource-instance-name 0..1 string Resource fhir Trial-Use : FMM2 icon Changed:
resource-pertainsToGoal 0..* Reference Resource fhir Trial-Use : FMM3 n/c
satisfies-requirement 0..* (complex) Resource , Element fhir Trial-Use : FMM2 icon Changed:
structuredefinition-fmm 0..1 integer DomainResource , Element fhir Trial-Use : FMM3 icon Changed:
structuredefinition-fmm-support 0..1 markdown DomainResource fhir Trial-Use : FMM2 icon Changed:
structuredefinition-wg 0..1 code DomainResource fhir Trial-Use : FMM3 n/c
version-specific-use 0..* (complex) Element , Resource fhir Trial-Use : FMM1 n/c
version-specific-value 0..* (complex) Element , Resource fhir Trial-Use : FMM1 n/c
workflow-statusReason 0..* CodeableConcept DomainResource fhir Trial-Use : FMM2 icon Added:
Extensions that refer to the ServiceRequest resource
servicerequest-specimenSuggestion 0..* (complex) ServiceRequest oo Trial-Use : FMM1 icon Added:
Extensions that refer to many resources including the ServiceRequest resource
alternate-reference 0..1 Reference Reference fhir Trial-Use : FMM2 icon Changed:
artifact-reference 0..1 (Choice) Element cds Deprecated : FMM1 icon Changed:
cqf-relativeDateTime 0..1 (complex) Element cds Deprecated : FMM3 n/c
diagnosticReport-focus 0..* Reference DiagnosticReport oo Draft : FMM0 icon Changed:
event-basedOn 0..* Reference Condition , ChargeItem , ClinicalImpression , Composition , Consent , Coverage ,
EpisodeOfCare , ExplanationOfBenefit , FamilyMemberHistory , ImmunizationEvaluation ,
InventoryReport , MedicationStatement , PaymentNotice , PaymentReconciliation 		fhir Trial-Use : FMM3 n/c
event-partOf 0..* Reference DiagnosticReport , Condition fhir Trial-Use : FMM3 n/c
flag-detail 0..* Reference Flag , Media pc Trial-Use : FMM3 n/c
patient-sexParameterForClinicalUse 0..* (complex) Resource pa Draft : FMM1 icon Changed:
replaces 0..* canonical ActorDefinition , CapabilityStatement , ChargeItemDefinition , CompartmentDefinition ,
ConditionDefinition , ExampleScenario , GraphDefinition , ImplementationGuide ,
MessageDefinition , ObservationDefinition , OperationDefinition , Questionnaire ,
Requirements , SearchParameter , SpecimenDefinition , StructureDefinition ,
StructureMap , SubscriptionTopic , TerminologyCapabilities , TestScript 		fhir Trial-Use : FMM3 n/c
request-replaces 0..* Reference NutritionOrder , SupplyRequest , Task fhir Trial-Use : FMM3 n/c
workflow-barrier 0..* CodeableReference Goal , CommunicationRequest , CarePlan.activity fhir Trial-Use : FMM2 icon Changed:
workflow-protectiveFactor 0..* CodeableReference Goal , CommunicationRequest , CarePlan.activity fhir Trial-Use : FMM2 icon Changed:
workflow-supportingInfo 0..* Reference DiagnosticReport , DocumentReference , Encounter , Observation , CommunicationRequest fhir Trial-Use : FMM3 n/c

75 Extensions

Extension Search Parameters

This table lists search parameters defined for any of the extensions listed above in association with the core specification.