This table lists extensions for the Questionnaire 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 | Conf. | Type | Context | WG | Status | Δ v1.0.0 |
| Extensions defined for the Questionnaire resource |
| 11179-permitted-value-conceptmap | 0..1 | canonical | StructureDefinition.snapshot.element.binding.valueSet, StructureDefinition.differential.element.binding.valueSet,
Questionnaire.item.answerValueSet | oo | Trial-Use: FMM3 |  Changed: |
| 11179-permitted-value-valueset | 0..1 | canonical | StructureDefinition.snapshot.element.binding.valueSet, StructureDefinition.differential.element.binding.valueSet,
Questionnaire.item.answerValueSet | oo | Trial-Use: FMM3 | Changed: |
| cqf-targetInvariant | 0..* | (complex) | ActivityDefinition, ActivityDefinition.code, ActivityDefinition.intent,
ActivityDefinition.priority, ActivityDefinition.doNotPerform, ActivityDefinition.timing[x],
ActivityDefinition.asNeeded[x], ActivityDefinition.location, ActivityDefinition.participant,
ActivityDefinition.product[x], ActivityDefinition.quantity, ActivityDefinition.dosage,
ActivityDefinition.bodySite, ActivityDefinition.dynamicValue, Measure,
Measure.group, Measure.group.population, Measure.group.stratifier,
Measure.supplementalData, PlanDefinition, PlanDefinition.goal, PlanDefinition.goal.target,
PlanDefinition.actor, PlanDefinition.action, Questionnaire, Questionnaire.item | cds | Deprecated: FMM2 | Changed: |
| designNote | 0..1 | markdown | Questionnaire, Questionnaire.item, ElementDefinition | fhir | Trial-Use: FMM3 | n/c |
| elementdefinition-conceptmap | 0..* | canonical | StructureDefinition.snapshot.element.binding.valueSet, StructureDefinition.differential.element.binding.valueSet,
Questionnaire.item.answerValueSet | fhir | Trial-Use: FMM2 | n/c |
| entryFormat | 0..1 | string | Questionnaire.item, ElementDefinition | fhir | Trial-Use: FMM3 | n/c |
| itemWeight | 0..1 | decimal | Coding, Questionnaire.item.answerOption | fhir | Trial-Use: FMM2 | Changed: |
| 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 |
| maxValue | 0..1 | (Choice) | Questionnaire.item | 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 |
| minValue | 0..1 | (Choice) | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-baseType | 0..1 | code | Questionnaire.item, ElementDefinition | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-choiceOrientation | 0..1 | code | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-constraint | 0..* | (complex) | Questionnaire, Questionnaire.item, ElementDefinition | fhir | Deprecated: FMM3 | Changed: |
| questionnaire-definitionBased | 0..1 | boolean | Questionnaire | fhir | Trial-Use: FMM2 | n/c |
| questionnaire-derivationType | 0..1 | Coding | Questionnaire.derivation | fhir | Experimental
Draft: FMM1 | Changed: |
| questionnaire-displayCategory | 0..1 | CodeableConcept | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-fhirType | 0..1 | string | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| 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-maxOccurs | 0..1 | integer | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-minOccurs | 0..1 | integer | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-optionExclusive | 0..1 | boolean | Questionnaire.item.answerOption | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-optionPrefix | 0..1 | string | Questionnaire.item.answerOption | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-optionRestriction | 0..* | (Choice) | Questionnaire.item | fhir | Trial-Use: FMM2 | n/c |
| questionnaire-referenceFilter | 0..1 | string | Questionnaire.item | fhir | Deprecated: FMM3 | Changed: |
| questionnaire-referenceProfile | 0..* | canonical | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-referenceResource | 0..* | code | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-signatureRequired | 0..* | CodeableConcept | Questionnaire, Questionnaire.item, ElementDefinition | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-sliderStepValue | 0..1 | integer | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-supportLink | 0..* | uri | Questionnaire.item, ElementDefinition | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-unit | 0..1 | Coding | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-unitOption | 0..* | Coding | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-unitValueSet | 0..1 | canonical | Questionnaire.item | fhir | Trial-Use: FMM3 | n/c |
| questionnaire-usageMode | 0..1 | code | Questionnaire.item, ElementDefinition | fhir | Trial-Use: FMM3 | n/c |
| replaces | 0..* | canonical | ActivityDefinition, ActorDefinition, CapabilityStatement, ChargeItemDefinition,
Citation, CodeSystem, CompartmentDefinition, ConceptMap, ConditionDefinition,
EventDefinition, Evidence, EvidenceReport, EvidenceVariable, ExampleScenario,
GraphDefinition, ImplementationGuide, Library, Measure, MessageDefinition,
NamingSystem, ObservationDefinition, OperationDefinition, PlanDefinition,
Questionnaire, Requirements, SearchParameter, SpecimenDefinition,
StructureDefinition, StructureMap, SubscriptionTopic, TerminologyCapabilities,
TestScript, ValueSet | fhir | Trial-Use: FMM3 | n/c |
| targetConstraint | 0..* | (complex) | ActivityDefinition, ActivityDefinition.participant, ActivityDefinition.dosage,
Measure, Measure.group, Measure.group.population, Measure.group.stratifier,
Measure.supplementalData, PlanDefinition, PlanDefinition.goal, PlanDefinition.goal.target,
PlanDefinition.actor, PlanDefinition.action, Questionnaire, Questionnaire.item | cds | Trial-Use: FMM2 |  Added: |
| variable | 0..* | Expression | Questionnaire, Questionnaire.item, PlanDefinition, PlanDefinition.action,
RequestOrchestration, RequestOrchestration.action, ActivityDefinition,
Measure, Measure.group, Measure.group.population | fhir | Trial-Use: FMM3 | n/c |
| Extensions defined for many resources including the Questionnaire resource |
| datatype | 0..1 | string | Base | fhir | Trial-Use: FMM2 | n/c |
| artifact-approvalDate | 0..1 | date | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-author | 0..* | ContactDetail | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-citeAs | 0..1 | (Choice) | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-contact | 0..* | ContactDetail | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-copyright | 0..1 | markdown | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-copyrightLabel | 0..1 | string | Resource | cds | Experimental
Draft: FMM1 | Changed: |
| artifact-date | 0..1 | dateTime | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-description | 0..1 | markdown | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-effectivePeriod | 0..1 | Period | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-experimental | 0..1 | boolean | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-identifier | 0..* | Identifier | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-isOwned | 0..1 | boolean | RelatedArtifact, ActivityDefinition.library, PlanDefinition.library,
Measure.library, DomainResource.extension, type.exists() and type = 'composed-of' | cds | Trial-Use: FMM1 | Added: |
| artifact-jurisdiction | 0..* | CodeableConcept | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-lastReviewDate | 0..1 | date | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-name | 0..1 | string | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-publisher | 0..1 | string | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-purpose | 0..1 | markdown | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-relatedArtifact | 0..* | RelatedArtifact | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-releaseDescription | 0..1 | markdown | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-releaseLabel | 0..1 | string | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-status | 0..1M | code | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-title | 0..1 | string | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-topic | 0..* | CodeableConcept | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-url | 0..1 | uri | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-usage | 0..1 | markdown | Resource | cds | Trial-Use: FMM1 | Added: |
| artifact-useContext | 0..* | UsageContext | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-version | 0..1 | string | Resource | cds | Trial-Use: FMM2 | Changed: |
| artifact-versionAlgorithm | 0..1 | (Choice) | Resource | cds | Draft: FMM1 | Changed: |
| artifact-versionPolicy | 0..1 | CodeableConcept | Resource | cds | Trial-Use: FMM1 | Added: |
| artifactassessment-disposition | 0..1 | code | Resource | cds | Draft: FMM1 | Added: |
| artifactassessment-workflowStatus | 0..1 | code | Resource | cds | Draft: FMM1 | Added: |
| cqf-artifactComment | 0..* | (complex) | Resource | cds | Trial-Use: FMM3 | Changed: |
| cqf-definitionTerm | 0..1 | (complex) | Resource | cds | Trial-Use: FMM3 | Added: |
| cqf-directReferenceCode | 0..* | Coding | Resource | cds | Trial-Use: FMM2 | Changed: |
| cqf-knowledgeCapability | 0..* | code | DomainResource | cds | Trial-Use: FMM2 | Changed: |
| cqf-knowledgeRepresentationLevel | 0..* | code | DomainResource | cds | Trial-Use: FMM2 | Changed: |
| cqf-library | 0..* | canonical | DomainResource | cds | Trial-Use: FMM3 | Changed: |
| cqf-logicDefinition | 0..* | (complex) | DomainResource | cds | Trial-Use: FMM2 | Changed: |
| cqf-measureInfo | 0..* | (complex) | Resource, Reference | cds | Trial-Use: FMM3 | Changed: |
| cqf-messages | 0..* | Reference | Resource | cds | Trial-Use: FMM3 | Added: |
| cqf-scope | 0..1 | string | Resource | cds | Trial-Use: FMM1 | Added: |
| derivation-reference | 0..* | (complex) | Resource, Element | fhir | Trial-Use: FMM2 | n/c |
| feature-assertion | 0..* | Coding | Provenance.target, Resource.meta | fhir | Experimental
Draft: FMM0 | Added: |
| note | 0..* | Annotation | Resource, Composition.section | fhir | Trial-Use: FMM1 | Added: |
| obligations-profile | 0..* | (complex) | Provenance.target, Resource.meta | fhir | Experimental
Draft: FMM0 | Added: |
| patient-sexParameterForClinicalUse | 0..* | (complex) | Resource | pa | Experimental
Draft: FMM1 | Changed: |
| resource-instance-description | 0..1 | markdown | Resource | fhir | Trial-Use: FMM2 | n/c |
| resource-instance-name | 0..1 | string | Resource | fhir | Trial-Use: FMM2 | n/c |
| resource-pertainsToGoal | 0..* | Reference | Resource | fhir | Trial-Use: FMM3 | n/c |
| satisfies-requirement | 0..* | (complex) | Resource, Element | fhir | Trial-Use: FMM2 | Changed: |
| structuredefinition-fmm | 0..1 | integer | DomainResource, Resource | fhir | Trial-Use: FMM3 | n/c |
| structuredefinition-fmm-support | 0..1 | markdown | DomainResource | fhir | Trial-Use: FMM2 | n/c |
| structuredefinition-standards-status-reason | 0..1 | markdown | DomainResource, http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status | fhir | Experimental
Draft: FMM1 | n/c |
| structuredefinition-wg | 0..1 | code | DomainResource | fhir | Trial-Use: FMM3 | n/c |
| version-specific-use | 0..* | (complex) | Element, Resource | fhir | Trial-Use: FMM1 | Added: |
| version-specific-value | 0..* | (complex) | Element, Resource | fhir | Trial-Use: FMM1 | Added: |
| Extensions that refer to the Questionnaire resource |
| servicerequest-questionnaireRequest | 0..1 | Reference | ServiceRequest | oo | Trial-Use: FMM3 | Changed: |
| workflow-adheresTo | 0..* | (Choice) | Condition, Communication, DiagnosticReport, DocumentReference, Encounter,
FamilyMemberHistory, Immunization, ImmunizationEvaluation, Observation,
QuestionnaireResponse, SupplyDelivery | fhir | Trial-Use: FMM2 | n/c |
| workflow-compliesWith | 0..* | (Choice) | CarePlan, CarePlan.activity.plannedActivityDetail, CommunicationRequest,
DeviceRequest, ImmunizationRecommendation, NutritionOrder, RequestOrchestration,
SupplyRequest, ServiceRequest, Task | fhir | Trial-Use: FMM2 | n/c |
| workflow-generatedFrom | 0..1 | canonical | CarePlan, CarePlan.activity.plannedActivityDetail, CommunicationRequest,
DeviceRequest, ImmunizationEvaluation, ImmunizationRecommendation,
NutritionOrder, RequestOrchestration, SupplyRequest, ServiceRequest,
Task | fhir | Trial-Use: FMM2 | n/c |
| workflow-shallComplyWith | 0..* | (Choice) | ActivityDefinition, Measure, OperationDefinition, PlanDefinition,
Observation, DiagnosticReport, DocumentReference, Condition, SupplyDelivery,
CommunicationRequest, SupplyRequest | fhir | Trial-Use: FMM2 | n/c |
| workflow-triggeredBy | 0..1 | (Choice) | CarePlan, CarePlan.activity.plannedActivityDetail, CommunicationRequest,
DeviceRequest, Encounter, ImmunizationRecommendation, NutritionOrder,
RequestOrchestration, SupplyRequest, ServiceRequest, Task, Condition,
Communication, DiagnosticReport, DocumentReference, FamilyMemberHistory,
Immunization, Observation, QuestionnaireResponse, SupplyDelivery | fhir | Trial-Use: FMM2 | n/c |
| Extensions that refer to many resources including the Questionnaire resource |
| alternate-reference | 0..1 | Reference | Reference | fhir | Trial-Use: FMM2 | n/c |
| artifact-reference | 0..1 | (Choice) | Element | cds | Trial-Use: FMM1 | Added: |
| cqf-relativeDateTime | 0..1 | (complex) | Element | cds | Deprecated: FMM3 | Changed: |
| diagnosticReport-focus | 0..* | Reference | DiagnosticReport | oo | Experimental
Draft: FMM0 | Changed: |
| event-basedOn | 0..* | Reference | Condition, ChargeItem, ClinicalImpression, Composition, Consent, Coverage,
DetectedIssue, 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 | pc | Trial-Use: FMM3 | Changed: |
| patient-sexParameterForClinicalUse | 0..* | (complex) | Resource | pa | Experimental
Draft: FMM1 | Changed: |
| replaces | 0..* | canonical | ActivityDefinition, ActorDefinition, CapabilityStatement, ChargeItemDefinition,
Citation, CodeSystem, CompartmentDefinition, ConceptMap, ConditionDefinition,
EventDefinition, Evidence, EvidenceReport, EvidenceVariable, ExampleScenario,
GraphDefinition, ImplementationGuide, Library, Measure, MessageDefinition,
NamingSystem, ObservationDefinition, OperationDefinition, PlanDefinition,
Questionnaire, Requirements, SearchParameter, SpecimenDefinition,
StructureDefinition, StructureMap, SubscriptionTopic, TerminologyCapabilities,
TestScript, ValueSet | 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 | n/c |
| workflow-protectiveFactor | 0..* | CodeableReference | Goal, CommunicationRequest, CarePlan.activity | fhir | Trial-Use: FMM2 | n/c |
| workflow-supportingInfo | 0..* | Reference | DiagnosticReport, DocumentReference, Encounter, Observation, CommunicationRequest | fhir | Trial-Use: FMM3 | n/c |
This table lists search parameters defined for any of the extensions listed above in association with the core specification.
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