Name	Flags	Card.	Type	Description & Constraints
Task	I TU		DomainResource	A task to be performed + Rule: Last modified date must be greater than or equal to authored-on date. Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
identifier		0..*	Identifier	Task Instance Identifier
instantiatesCanonical	Σ	0..1	canonical( ActivityDefinition)	Formal definition of task
instantiatesUri	Σ	0..1	uri	Formal definition of task
basedOn	Σ	0..*	Reference( Any)	Request fulfilled by this task
groupIdentifier	Σ	0..1	Identifier	Requisition or grouper id
partOf	Σ	0..*	Reference( Task)	Composite task
status	?! Σ	1..1	code	draft | requested | received | accepted | + TaskStatus ( Required)
statusReason	Σ	0..1	CodeableConcept	Reason for current status
businessStatus	Σ	0..1	CodeableConcept	E.g. "Specimen collected", "IV prepped"
intent	Σ	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option TaskIntent ( Required)
priority		0..1	code	routine | urgent | asap | stat Request priority ( Required)
code	Σ	0..1	CodeableConcept	Task Type Task Codes ( Example)
description	Σ	0..1	string	Human-readable explanation of task
focus	Σ	0..1	Reference( Any)	What task is acting on
for	Σ	0..1	Reference( Any)	Beneficiary of the Task
encounter	Σ	0..1	Reference( Encounter)	Healthcare event during which this task originated
executionPeriod	Σ	0..1	Period	Start and end time of execution
authoredOn	I	0..1	dateTime	Task Creation Date
lastModified	Σ I	0..1	dateTime	Task Last Modified Date
requester	Σ	0..1	Reference( Device | Organization | Patient | Practitioner | PractitionerRole | RelatedPerson)	Who is asking for task to be done
performerType		0..*	CodeableConcept	Requested performer Procedure Performer Role Codes ( Preferred)
owner	Σ	0..1	Reference( Practitioner | PractitionerRole | Organization | CareTeam | HealthcareService | Patient | Device | RelatedPerson)	Responsible individual
location	Σ	0..1	Reference( Location)	Where task occurs
reasonCode		0..1	CodeableConcept	Why task is needed
reasonReference		0..1	Reference( Any)	Why task is needed
insurance		0..*	Reference( Coverage | ClaimResponse)	Associated insurance coverage
note		0..*	Annotation	Comments made about the task
relevantHistory		0..*	Reference( Provenance)	Key events in history of the Task
restriction		0..1	BackboneElement	Constraints on fulfillment tasks
repetitions		0..1	positiveInt	How many times to repeat
period		0..1	Period	When fulfillment sought
recipient		0..*	Reference( Patient | Practitioner | PractitionerRole | RelatedPerson | Group | Organization)	For whom is fulfillment sought?
input		0..*	BackboneElement	Information used to perform task
type		1..1	CodeableConcept	Label for the input
value[x]		1..1	*	Content to use in performing the task
output		0..*	BackboneElement	Information produced as part of task
type		1..1	CodeableConcept	Label for output
value[x]		1..1	*	Result of output
Documentation for this format