description: A task to be performed. package_name: hl7.fhir.r5.core derivation: specialization name: Task type: Task elements: restriction: isModifier: false short: Constraints on fulfillment tasks type: BackboneElement mustSupport: false isSummary: false index: 28 elements: repetitions: {isModifier: false, short: How many times to repeat, type: positiveInt, mustSupport: false, isSummary: false, index: 29} period: {isModifier: false, short: When fulfillment sought, type: Period, mustSupport: false, isSummary: false, index: 30} recipient: isModifier: false short: For whom is fulfillment sought? refers: ['http://hl7.org/fhir/StructureDefinition/Group', 'http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/PractitionerRole', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson'] type: Reference mustSupport: false array: true isSummary: false index: 31 description: {isModifier: false, short: Human-readable explanation of task, type: string, mustSupport: false, isSummary: true, index: 12} performerType: isModifier: false short: Requested performer type: CodeableConcept mustSupport: false array: true binding: {strength: preferred, valueSet: 'http://hl7.org/fhir/ValueSet/performer-role'} isSummary: false index: 20 executionPeriod: {isModifier: false, short: Start and end time of execution, type: Period, mustSupport: false, isSummary: true, index: 16} insurance: isModifier: false short: Associated insurance coverage refers: ['http://hl7.org/fhir/StructureDefinition/ClaimResponse', 'http://hl7.org/fhir/StructureDefinition/Coverage'] type: Reference mustSupport: false array: true isSummary: false index: 25 instantiatesCanonical: {isModifier: false, short: Formal definition of task, type: canonical, mustSupport: false, isSummary: true, index: 1} instantiatesUri: {isModifier: false, short: Formal definition of task, type: uri, mustSupport: false, isSummary: true, index: 2} relevantHistory: isModifier: false short: Key events in history of the Task refers: ['http://hl7.org/fhir/StructureDefinition/Provenance'] type: Reference mustSupport: false array: true isSummary: false index: 27 encounter: isModifier: false short: Healthcare event during which this task originated refers: ['http://hl7.org/fhir/StructureDefinition/Encounter'] type: Reference mustSupport: false isSummary: true index: 15 reasonCode: {isModifier: false, short: Why task is needed, type: CodeableConcept, mustSupport: false, isSummary: false, index: 23} statusReason: {isModifier: false, short: Reason for current status, type: CodeableConcept, mustSupport: false, isSummary: true, index: 7} authoredOn: {isModifier: false, short: Task Creation Date, type: dateTime, mustSupport: false, isSummary: false, index: 17} output: isModifier: false short: Information produced as part of task index: 87 type: BackboneElement mustSupport: false array: true elements: valueBase64Binary: {isModifier: false, short: Result of output, type: base64Binary, mustSupport: false, choiceOf: value, isSummary: false, index: 91} valueAge: {isModifier: false, short: Result of output, type: Age, mustSupport: false, choiceOf: value, isSummary: false, index: 112} valueParameterDefinition: {isModifier: false, short: Result of output, type: ParameterDefinition, mustSupport: false, choiceOf: value, isSummary: false, index: 136} valueTiming: {isModifier: false, short: Result of output, type: Timing, mustSupport: false, choiceOf: value, isSummary: false, index: 131} valueCode: {isModifier: false, short: Result of output, type: code, mustSupport: false, choiceOf: value, isSummary: false, index: 94} valueReference: {isModifier: false, short: Result of output, type: Reference, mustSupport: false, choiceOf: value, isSummary: false, index: 128} valueContributor: {isModifier: false, short: Result of output, type: Contributor, mustSupport: false, choiceOf: value, isSummary: false, index: 133} valueContactDetail: {isModifier: false, short: Result of output, type: ContactDetail, mustSupport: false, choiceOf: value, isSummary: false, index: 132} valueUri: {isModifier: false, short: Result of output, type: uri, mustSupport: false, choiceOf: value, isSummary: false, index: 108} valueUsageContext: {isModifier: false, short: Result of output, type: UsageContext, mustSupport: false, choiceOf: value, isSummary: false, index: 139} valueTime: {isModifier: false, short: Result of output, type: time, mustSupport: false, choiceOf: value, isSummary: false, index: 106} valueDecimal: {isModifier: false, short: Result of output, type: decimal, mustSupport: false, choiceOf: value, isSummary: false, index: 97} valueCanonical: {isModifier: false, short: Result of output, type: canonical, mustSupport: false, choiceOf: value, isSummary: false, index: 93} valueMarkdown: {isModifier: false, short: Result of output, type: markdown, mustSupport: false, choiceOf: value, isSummary: false, index: 102} valueIdentifier: {isModifier: false, short: Result of output, type: Identifier, mustSupport: false, choiceOf: value, isSummary: false, index: 122} valueTriggerDefinition: {isModifier: false, short: Result of output, type: TriggerDefinition, mustSupport: false, choiceOf: value, isSummary: false, index: 138} valueQuantity: {isModifier: false, short: Result of output, type: Quantity, mustSupport: false, choiceOf: value, isSummary: false, index: 125} value: isModifier: false short: Result of output mustSupport: false choices: [valueBase64Binary, valueBoolean, valueCanonical, valueCode, valueDate, valueDateTime, valueDecimal, valueId, valueInstant, valueInteger, valueInteger64, valueMarkdown, valueOid, valuePositiveInt, valueString, valueTime, valueUnsignedInt, valueUri, valueUrl, valueUuid, valueAddress, valueAge, valueAnnotation, valueAttachment, valueCodeableConcept, valueCoding, valueContactPoint, valueCount, valueDistance, valueDuration, valueHumanName, valueIdentifier, valueMoney, valuePeriod, valueQuantity, valueRange, valueRatio, valueReference, valueSampledData, valueSignature, valueTiming, valueContactDetail, valueContributor, valueDataRequirement, valueExpression, valueParameterDefinition, valueRelatedArtifact, valueTriggerDefinition, valueUsageContext, valueDosage, valueMeta] isSummary: false index: 90 valueCount: {isModifier: false, short: Result of output, type: Count, mustSupport: false, choiceOf: value, isSummary: false, index: 118} valueString: {isModifier: false, short: Result of output, type: string, mustSupport: false, choiceOf: value, isSummary: false, index: 105} valueRatio: {isModifier: false, short: Result of output, type: Ratio, mustSupport: false, choiceOf: value, isSummary: false, index: 127} valueBoolean: {isModifier: false, short: Result of output, type: boolean, mustSupport: false, choiceOf: value, isSummary: false, index: 92} valueInstant: {isModifier: false, short: Result of output, type: instant, mustSupport: false, choiceOf: value, isSummary: false, index: 99} valueDateTime: {isModifier: false, short: Result of output, type: dateTime, mustSupport: false, choiceOf: value, isSummary: false, index: 96} valueDate: {isModifier: false, short: Result of output, type: date, mustSupport: false, choiceOf: value, isSummary: false, index: 95} type: {isModifier: false, short: Label for output, type: CodeableConcept, mustSupport: false, isSummary: false, index: 88} valueDuration: {isModifier: false, short: Result of output, type: Duration, mustSupport: false, choiceOf: value, isSummary: false, index: 120} valueDataRequirement: {isModifier: false, short: Result of output, type: DataRequirement, mustSupport: false, choiceOf: value, isSummary: false, index: 134} valueMeta: {isModifier: false, short: Result of output, type: Meta, mustSupport: false, choiceOf: value, isSummary: false, index: 141} valueMoney: {isModifier: false, short: Result of output, type: Money, mustSupport: false, choiceOf: value, isSummary: false, index: 123} valueCoding: {isModifier: false, short: Result of output, type: Coding, mustSupport: false, choiceOf: value, isSummary: false, index: 116} valueInteger64: {isModifier: false, short: Result of output, type: integer64, mustSupport: false, choiceOf: value, isSummary: false, index: 101} valueExpression: {isModifier: false, short: Result of output, type: Expression, mustSupport: false, choiceOf: value, isSummary: false, index: 135} valueSampledData: {isModifier: false, short: Result of output, type: SampledData, mustSupport: false, choiceOf: value, isSummary: false, index: 129} valueDosage: {isModifier: false, short: Result of output, type: Dosage, mustSupport: false, choiceOf: value, isSummary: false, index: 140} valueContactPoint: {isModifier: false, short: Result of output, type: ContactPoint, mustSupport: false, choiceOf: value, isSummary: false, index: 117} valueCodeableConcept: {isModifier: false, short: Result of output, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: false, index: 115} valueAnnotation: {isModifier: false, short: Result of output, type: Annotation, mustSupport: false, choiceOf: value, isSummary: false, index: 113} valuePeriod: {isModifier: false, short: Result of output, type: Period, mustSupport: false, choiceOf: value, isSummary: false, index: 124} valueDistance: {isModifier: false, short: Result of output, type: Distance, mustSupport: false, choiceOf: value, isSummary: false, index: 119} valueRange: {isModifier: false, short: Result of output, type: Range, mustSupport: false, choiceOf: value, isSummary: false, index: 126} valueSignature: {isModifier: false, short: Result of output, type: Signature, mustSupport: false, choiceOf: value, isSummary: false, index: 130} valueUuid: {isModifier: false, short: Result of output, type: uuid, mustSupport: false, choiceOf: value, isSummary: false, index: 110} valueInteger: {isModifier: false, short: Result of output, type: integer, mustSupport: false, choiceOf: value, isSummary: false, index: 100} valueHumanName: {isModifier: false, short: Result of output, type: HumanName, mustSupport: false, choiceOf: value, isSummary: false, index: 121} valueUnsignedInt: {isModifier: false, short: Result of output, type: unsignedInt, mustSupport: false, choiceOf: value, isSummary: false, index: 107} valueAttachment: {isModifier: false, short: Result of output, type: Attachment, mustSupport: false, choiceOf: value, isSummary: false, index: 114} valueOid: {isModifier: false, short: Result of output, type: oid, mustSupport: false, choiceOf: value, isSummary: false, index: 103} valueAddress: {isModifier: false, short: Result of output, type: Address, mustSupport: false, choiceOf: value, isSummary: false, index: 111} valueRelatedArtifact: {isModifier: false, short: Result of output, type: RelatedArtifact, mustSupport: false, choiceOf: value, isSummary: false, index: 137} valuePositiveInt: {isModifier: false, short: Result of output, type: positiveInt, mustSupport: false, choiceOf: value, isSummary: false, index: 104} valueId: {isModifier: false, short: Result of output, type: id, mustSupport: false, choiceOf: value, isSummary: false, index: 98} valueUrl: {isModifier: false, short: Result of output, type: url, mustSupport: false, choiceOf: value, isSummary: false, index: 109} required: [valueCoding, valueBase64Binary, valuePeriod, valueSampledData, valueMarkdown, valueUri, valueSignature, valueString, valueReference, valueRatio, valueContributor, valueMoney, valueContactPoint, valueAnnotation, valueCode, valueHumanName, valueRange, valuePositiveInt, valueAddress, valueTriggerDefinition, valueContactDetail, valueAge, valueDataRequirement, valueRelatedArtifact, valueCanonical, valueDecimal, valueAttachment, valueTiming, valueIdentifier, valueExpression, valueDateTime, valueInstant, value, valueDosage, valueBoolean, valueDate, valueMeta, valueParameterDefinition, valueInteger64, valueUnsignedInt, type, valueUuid, valueCodeableConcept, valueTime, valueCount, valueId, valueDistance, valueUsageContext, valueQuantity, valueUrl, valueDuration, valueOid, valueInteger] isSummary: false businessStatus: {isModifier: false, short: 'E.g. "Specimen collected", "IV prepped"', type: CodeableConcept, mustSupport: false, isSummary: true, index: 8} note: {isModifier: false, short: Comments made about the task, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 26} for: isModifier: false short: Beneficiary of the Task refers: ['http://hl7.org/fhir/StructureDefinition/Resource'] type: Reference mustSupport: false isSummary: true index: 14 requester: isModifier: false short: Who is asking for task to be done refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/PractitionerRole', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson'] type: Reference mustSupport: false isSummary: true index: 19 lastModified: {isModifier: false, short: Task Last Modified Date, type: dateTime, mustSupport: false, isSummary: true, index: 18} priority: isModifier: false short: routine | urgent | asap | stat type: code mustSupport: false meaningWhenMissing: If missing, this task should be performed with normal priority binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/request-priority|4.6.0'} isSummary: false index: 10 status: isModifier: true short: draft | requested | received | accepted | + index: 6 type: code mustSupport: false binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/task-status|4.6.0'} isModifierReason: This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid isSummary: true groupIdentifier: {isModifier: false, short: Requisition or grouper id, type: Identifier, mustSupport: false, isSummary: true, index: 4} code: isModifier: false short: Task Type type: CodeableConcept mustSupport: false binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/task-code'} isSummary: true index: 11 identifier: {isModifier: false, short: Task Instance Identifier, type: Identifier, mustSupport: false, array: true, isSummary: false, index: 0} intent: isModifier: false short: unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option type: code mustSupport: false binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/task-intent|4.6.0'} isSummary: true index: 9 focus: isModifier: false short: What task is acting on refers: ['http://hl7.org/fhir/StructureDefinition/Resource'] type: Reference mustSupport: false isSummary: true index: 13 input: isModifier: false short: Information used to perform task index: 32 type: BackboneElement mustSupport: false array: true elements: valueBase64Binary: {isModifier: false, short: Content to use in performing the task, type: base64Binary, mustSupport: false, choiceOf: value, isSummary: false, index: 36} valueAge: {isModifier: false, short: Content to use in performing the task, type: Age, mustSupport: false, choiceOf: value, isSummary: false, index: 57} valueParameterDefinition: {isModifier: false, short: Content to use in performing the task, type: ParameterDefinition, mustSupport: false, choiceOf: value, isSummary: false, index: 81} valueTiming: {isModifier: false, short: Content to use in performing the task, type: Timing, mustSupport: false, choiceOf: value, isSummary: false, index: 76} valueCode: {isModifier: false, short: Content to use in performing the task, type: code, mustSupport: false, choiceOf: value, isSummary: false, index: 39} valueReference: {isModifier: false, short: Content to use in performing the task, type: Reference, mustSupport: false, choiceOf: value, isSummary: false, index: 73} valueContributor: {isModifier: false, short: Content to use in performing the task, type: Contributor, mustSupport: false, choiceOf: value, isSummary: false, index: 78} valueContactDetail: {isModifier: false, short: Content to use in performing the task, type: ContactDetail, mustSupport: false, choiceOf: value, isSummary: false, index: 77} valueUri: {isModifier: false, short: Content to use in performing the task, type: uri, mustSupport: false, choiceOf: value, isSummary: false, index: 53} valueUsageContext: {isModifier: false, short: Content to use in performing the task, type: UsageContext, mustSupport: false, choiceOf: value, isSummary: false, index: 84} valueTime: {isModifier: false, short: Content to use in performing the task, type: time, mustSupport: false, choiceOf: value, isSummary: false, index: 51} valueDecimal: {isModifier: false, short: Content to use in performing the task, type: decimal, mustSupport: false, choiceOf: value, isSummary: false, index: 42} valueCanonical: {isModifier: false, short: Content to use in performing the task, type: canonical, mustSupport: false, choiceOf: value, isSummary: false, index: 38} valueMarkdown: {isModifier: false, short: Content to use in performing the task, type: markdown, mustSupport: false, choiceOf: value, isSummary: false, index: 47} valueIdentifier: {isModifier: false, short: Content to use in performing the task, type: Identifier, mustSupport: false, choiceOf: value, isSummary: false, index: 67} valueTriggerDefinition: {isModifier: false, short: Content to use in performing the task, type: TriggerDefinition, mustSupport: false, choiceOf: value, isSummary: false, index: 83} valueQuantity: {isModifier: false, short: Content to use in performing the task, type: Quantity, mustSupport: false, choiceOf: value, isSummary: false, index: 70} value: isModifier: false short: Content to use in performing the task mustSupport: false choices: [valueBase64Binary, valueBoolean, valueCanonical, valueCode, valueDate, valueDateTime, valueDecimal, valueId, valueInstant, valueInteger, valueInteger64, valueMarkdown, valueOid, valuePositiveInt, valueString, valueTime, valueUnsignedInt, valueUri, valueUrl, valueUuid, valueAddress, valueAge, valueAnnotation, valueAttachment, valueCodeableConcept, valueCoding, valueContactPoint, valueCount, valueDistance, valueDuration, valueHumanName, valueIdentifier, valueMoney, valuePeriod, valueQuantity, valueRange, valueRatio, valueReference, valueSampledData, valueSignature, valueTiming, valueContactDetail, valueContributor, valueDataRequirement, valueExpression, valueParameterDefinition, valueRelatedArtifact, valueTriggerDefinition, valueUsageContext, valueDosage, valueMeta] isSummary: false index: 35 valueCount: {isModifier: false, short: Content to use in performing the task, type: Count, mustSupport: false, choiceOf: value, isSummary: false, index: 63} valueString: {isModifier: false, short: Content to use in performing the task, type: string, mustSupport: false, choiceOf: value, isSummary: false, index: 50} valueRatio: {isModifier: false, short: Content to use in performing the task, type: Ratio, mustSupport: false, choiceOf: value, isSummary: false, index: 72} valueBoolean: {isModifier: false, short: Content to use in performing the task, type: boolean, mustSupport: false, choiceOf: value, isSummary: false, index: 37} valueInstant: {isModifier: false, short: Content to use in performing the task, type: instant, mustSupport: false, choiceOf: value, isSummary: false, index: 44} valueDateTime: {isModifier: false, short: Content to use in performing the task, type: dateTime, mustSupport: false, choiceOf: value, isSummary: false, index: 41} valueDate: {isModifier: false, short: Content to use in performing the task, type: date, mustSupport: false, choiceOf: value, isSummary: false, index: 40} type: {isModifier: false, short: Label for the input, type: CodeableConcept, mustSupport: false, isSummary: false, index: 33} valueDuration: {isModifier: false, short: Content to use in performing the task, type: Duration, mustSupport: false, choiceOf: value, isSummary: false, index: 65} valueDataRequirement: {isModifier: false, short: Content to use in performing the task, type: DataRequirement, mustSupport: false, choiceOf: value, isSummary: false, index: 79} valueMeta: {isModifier: false, short: Content to use in performing the task, type: Meta, mustSupport: false, choiceOf: value, isSummary: false, index: 86} valueMoney: {isModifier: false, short: Content to use in performing the task, type: Money, mustSupport: false, choiceOf: value, isSummary: false, index: 68} valueCoding: {isModifier: false, short: Content to use in performing the task, type: Coding, mustSupport: false, choiceOf: value, isSummary: false, index: 61} valueInteger64: {isModifier: false, short: Content to use in performing the task, type: integer64, mustSupport: false, choiceOf: value, isSummary: false, index: 46} valueExpression: {isModifier: false, short: Content to use in performing the task, type: Expression, mustSupport: false, choiceOf: value, isSummary: false, index: 80} valueSampledData: {isModifier: false, short: Content to use in performing the task, type: SampledData, mustSupport: false, choiceOf: value, isSummary: false, index: 74} valueDosage: {isModifier: false, short: Content to use in performing the task, type: Dosage, mustSupport: false, choiceOf: value, isSummary: false, index: 85} valueContactPoint: {isModifier: false, short: Content to use in performing the task, type: ContactPoint, mustSupport: false, choiceOf: value, isSummary: false, index: 62} valueCodeableConcept: {isModifier: false, short: Content to use in performing the task, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: false, index: 60} valueAnnotation: {isModifier: false, short: Content to use in performing the task, type: Annotation, mustSupport: false, choiceOf: value, isSummary: false, index: 58} valuePeriod: {isModifier: false, short: Content to use in performing the task, type: Period, mustSupport: false, choiceOf: value, isSummary: false, index: 69} valueDistance: {isModifier: false, short: Content to use in performing the task, type: Distance, mustSupport: false, choiceOf: value, isSummary: false, index: 64} valueRange: {isModifier: false, short: Content to use in performing the task, type: Range, mustSupport: false, choiceOf: value, isSummary: false, index: 71} valueSignature: {isModifier: false, short: Content to use in performing the task, type: Signature, mustSupport: false, choiceOf: value, isSummary: false, index: 75} valueUuid: {isModifier: false, short: Content to use in performing the task, type: uuid, mustSupport: false, choiceOf: value, isSummary: false, index: 55} valueInteger: {isModifier: false, short: Content to use in performing the task, type: integer, mustSupport: false, choiceOf: value, isSummary: false, index: 45} valueHumanName: {isModifier: false, short: Content to use in performing the task, type: HumanName, mustSupport: false, choiceOf: value, isSummary: false, index: 66} valueUnsignedInt: {isModifier: false, short: Content to use in performing the task, type: unsignedInt, mustSupport: false, choiceOf: value, isSummary: false, index: 52} valueAttachment: {isModifier: false, short: Content to use in performing the task, type: Attachment, mustSupport: false, choiceOf: value, isSummary: false, index: 59} valueOid: {isModifier: false, short: Content to use in performing the task, type: oid, mustSupport: false, choiceOf: value, isSummary: false, index: 48} valueAddress: {isModifier: false, short: Content to use in performing the task, type: Address, mustSupport: false, choiceOf: value, isSummary: false, index: 56} valueRelatedArtifact: {isModifier: false, short: Content to use in performing the task, type: RelatedArtifact, mustSupport: false, choiceOf: value, isSummary: false, index: 82} valuePositiveInt: {isModifier: false, short: Content to use in performing the task, type: positiveInt, mustSupport: false, choiceOf: value, isSummary: false, index: 49} valueId: {isModifier: false, short: Content to use in performing the task, type: id, mustSupport: false, choiceOf: value, isSummary: false, index: 43} valueUrl: {isModifier: false, short: Content to use in performing the task, type: url, mustSupport: false, choiceOf: value, isSummary: false, index: 54} required: [valueCoding, valueBase64Binary, valuePeriod, valueSampledData, valueMarkdown, valueUri, valueSignature, valueString, valueReference, valueRatio, valueContributor, valueMoney, valueContactPoint, valueAnnotation, valueCode, valueHumanName, valueRange, valuePositiveInt, valueAddress, valueTriggerDefinition, valueContactDetail, valueAge, valueDataRequirement, valueRelatedArtifact, valueCanonical, valueDecimal, valueAttachment, valueTiming, valueIdentifier, valueExpression, valueDateTime, valueInstant, value, valueDosage, valueBoolean, valueDate, valueMeta, valueParameterDefinition, valueInteger64, valueUnsignedInt, type, valueUuid, valueCodeableConcept, valueTime, valueCount, valueId, valueDistance, valueUsageContext, valueQuantity, valueUrl, valueDuration, valueOid, valueInteger] isSummary: false basedOn: isModifier: false short: Request fulfilled by this task refers: ['http://hl7.org/fhir/StructureDefinition/Resource'] type: Reference mustSupport: false array: true isSummary: true index: 3 partOf: isModifier: false short: Composite task refers: ['http://hl7.org/fhir/StructureDefinition/Task'] type: Reference mustSupport: false array: true isSummary: true index: 5 location: isModifier: false short: Where task occurs refers: ['http://hl7.org/fhir/StructureDefinition/Location'] type: Reference mustSupport: false isSummary: true index: 22 owner: isModifier: false short: Responsible individual refers: ['http://hl7.org/fhir/StructureDefinition/CareTeam', 'http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/HealthcareService', 'http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/PractitionerRole', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson'] type: Reference mustSupport: false isSummary: true index: 21 reasonReference: isModifier: false short: Why task is needed refers: ['http://hl7.org/fhir/StructureDefinition/Resource'] type: Reference mustSupport: false isSummary: false index: 24 package_version: 4.6.0 class: resource kind: resource url: http://hl7.org/fhir/StructureDefinition/Task base: http://hl7.org/fhir/StructureDefinition/DomainResource version: 4.6.0 required: [status, intent]