References

• NHS England FHIR Genomics Implementation Guide - Current State vs Future State
• AU eRequesting Implementation Guide which represents HL7 FHIR pathology orders and reports for two ICS within the region (Magentus).

Laboratory Order Management

A single laboratory order may generate multiple reports. Throughout the process, the order placer needs to be informed of the order’s progress—particularly when the laboratory has fully completed it.

The overall status of the order is tracked using a Task, which is updated as work progresses.

graph TD
    LaboratoryOrder --> CreateTask[Create Task]
    CreateTask --> |"'Process Genomic Test Request'<br/> Task (accepted)"| AutomationMananger[Automation Mananger] 

    UpdateTask --> |"'Process Genomic Test Request'<br/>Task (in-progress)"| AutomationMananger
    LaboratoryReport --> IsOrderComplete{Is Order Complete?}
    IsOrderComplete --> |Yes| CompleteTask
    IsOrderComplete -->  |No| UpdateTask[Update Task]
    CompleteTask -->  |"'Process Genomic Test Request'<br/>Task (completed)"| AutomationMananger

• When the order is first received, a Task is created to represent it, and its status is set to accepted.
• As each report arrives, the Task is updated to reflect progress, moving to in-progress.
• The order is considered complete once all expected reports have been received, at which point the Task moves to completed.

Data Model

This model is based on a merge of NHS England Genomcis and AU eRequesting Task Diagnostic Request.

No SNOMED codes for genomic diagnostic testing found, codes are potentially children of 386053000 Evaluation procedure

Caveats

The logic for determining when an order is complete may not always be accurate. For example, the laboratory may decide to perform additional or follow-up tests on the same specimen.

For this reason, it is advisable that the laboratory emit explicit events indicating that:

• the order is complete,
• new tests have been initiated, or
• existing tests have been modified.

IHE Pathology and Laboratory Medicine (PaLM) Volume 2 - LAB-4 from the LIMS, offers a potential approach to handling this.

Specimen Collection

Testing cannot begin until a specimen has been collected. Activities such as biopsies or sample collection occur outside the core diagnostic workflow. Monitoring the progress of specimen collection is important for supporting timely diagnostic processing.

graph TD
    LaboratoryOrder[Laboratory Order] --> CreateTask[Create Task]
    CreateTask --> |"'Specimen Collection'<br/> Task (requested)"| AutomationMananger[Automation Mananger] 
    Facility[Specimen Collection/Laboratory Facility] --> UpdateTask
    UpdateTask[Update Task] --> |"'Specimen Collection'<br/>Task(as indicated by event)"| AutomationMananger
    LaboratoryReport[Laboratory Report] --> CompleteTask
    CompleteTask --> |"'Specimen Collection'<br/>Task (completed)"| AutomationMananger

• When an order is received with Specimen Collection, a Task is created to represent it.
• When a report is received, the Task is updated to reflect progress.

Data Model

This model is based on a merge of NHS England Genomcis and AU eRequesting.

SNOMED codes for specimen collection exist, e.g. 2620001000004108 Specimen collection procedure.

Caveats

Specimen-related information may be limited in both laboratory orders and reports. In some older HL7 implementations, the SPM segment may not be included at all.

To address these gaps, the following approaches can be used:

• IHE Pathology and Laboratory Medicine (PaLM) Volume 2 - LAB-4 from the LIMS, which can be issued whenever specimen details are updated.
• use IHE Specimen Event Tracking (SET), which allows the laboratory facility to send specimen-related event messages to the central automation management system and from the specimen collection facility—typically an Electronic Patient Record (EPR) system.

• Key Elements Table
• Differential Table
• Snapshot Table
• Statistics/References
• All

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Task	C	0..*	Task	A task to be performed Constraints: inv-1
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	S	0..*	CorrelationIdentifier	Task Instance Identifier
groupIdentifier	SΣ	0..1	CorrelationIdentifier	Requisition or grouper id
status	?!SΣ	1..1	code	draft | requested | received | accepted | + Binding: TaskStatus (required): The current status of the task.
intent	SΣ	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option Binding: TaskIntent (required): Distinguishes whether the task is a proposal, plan or full order.
code	Σ	1..1	CodeableConcept	Task Type Binding: TaskCode (example): Codes to identify what the task involves. These will typically be specific to a particular workflow.
focus	SΣ	1..1	Reference(ServiceRequest | Specimen)	What task is acting on
for	SΣ	1..1	Reference(Patient)	Beneficiary of the Task
identifier	Σ	0..1	NHSNumber	Logical reference, when literal reference is not known
authoredOn	C	1..1	dateTime	Task Creation Date
requester	SΣ	1..1	Reference(PractitionerRole | Organization)	Who is asking for task to be done
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
owner	SΣ	1..1	Reference(PractitionerRole | Organization)	Responsible individual
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Task.status	Base	required	TaskStatus	📍4.0.1	FHIR Std.
Task.intent	Base	required	TaskIntent	📍4.0.1	FHIR Std.
Task.code	Base	example	Task Codes	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	Task	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	Task	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Task	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Task	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	Task	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
inv-1	error	Task	Last modified date must be greater than or equal to authored-on date.	lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn

This structure is derived from Task

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Task		0..*	Task	A task to be performed
identifier	S	0..*	CorrelationIdentifier	Task Instance Identifier
groupIdentifier	S	0..1	CorrelationIdentifier	Requisition or grouper id
status	S	1..1	code	draft | requested | received | accepted | +
intent	S	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
code		1..1	CodeableConcept	Task Type
focus	S	1..1	Reference(ServiceRequest | Specimen)	What task is acting on
for	S	1..1	Reference(Patient)	Beneficiary of the Task
identifier		0..1	NHSNumber	Logical reference, when literal reference is not known
authoredOn		1..1	dateTime	Task Creation Date
requester	S	1..1	Reference(PractitionerRole | Organization)	Who is asking for task to be done
identifier		0..1	OrganisationCode	Logical reference, when literal reference is not known
owner	S	1..1	Reference(PractitionerRole | Organization)	Responsible individual
identifier		0..1	OrganisationCode	Logical reference, when literal reference is not known
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Task	C	0..*	Task	A task to be performed Constraints: inv-1
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	S	0..*	CorrelationIdentifier	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(Resource)	Request fulfilled by this task
groupIdentifier	SΣ	0..1	CorrelationIdentifier	Requisition or grouper id
partOf	Σ	0..*	Reference(Task)	Composite task
status	?!SΣ	1..1	code	draft | requested | received | accepted | + Binding: TaskStatus (required): The current status of the task.
statusReason	Σ	0..1	CodeableConcept	Reason for current status Binding Description: (example): Codes to identify the reason for current status. These will typically be specific to a particular workflow.
businessStatus	Σ	0..1	CodeableConcept	E.g. "Specimen collected", "IV prepped" Binding Description: (example): The domain-specific business-contextual sub-state of the task. For example: "Blood drawn", "IV inserted", "Awaiting physician signature", etc.
intent	SΣ	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option Binding: TaskIntent (required): Distinguishes whether the task is a proposal, plan or full order.
priority		0..1	code	routine | urgent | asap | stat Binding: RequestPriority (required): The task's priority.
code	Σ	1..1	CodeableConcept	Task Type Binding: TaskCode (example): Codes to identify what the task involves. These will typically be specific to a particular workflow.
description	Σ	0..1	string	Human-readable explanation of task
focus	SΣ	1..1	Reference(ServiceRequest | Specimen)	What task is acting on
for	SΣ	1..1	Reference(Patient)	Beneficiary of the Task
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	ΣC	0..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	NHSNumber	Logical reference, when literal reference is not known
display	Σ	0..1	string	Text alternative for the resource
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	C	1..1	dateTime	Task Creation Date
lastModified	ΣC	0..1	dateTime	Task Last Modified Date
requester	SΣ	1..1	Reference(PractitionerRole | Organization)	Who is asking for task to be done
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	ΣC	0..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
display	Σ	0..1	string	Text alternative for the resource
performerType		0..*	CodeableConcept	Requested performer Binding: ProcedurePerformerRoleCodes (preferred): The type(s) of task performers allowed.
owner	SΣ	1..1	Reference(PractitionerRole | Organization)	Responsible individual
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	ΣC	0..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
display	Σ	0..1	string	Text alternative for the resource
location	Σ	0..1	Reference(Location)	Where task occurs
reasonCode		0..1	CodeableConcept	Why task is needed Binding Description: (example): Indicates why the task is needed. E.g. Suspended because patient admitted to hospital.
reasonReference		0..1	Reference(Resource)	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
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
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
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type		1..1	CodeableConcept	Label for the input Binding Description: (example): Codes to identify types of input parameters. These will typically be specific to a particular workflow. E.g. "Comparison source", "Applicable consent", "Concomitent Medications", etc.
value[x]		1..1		Content to use in performing the task
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical(Any)
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
valueMarkdown			markdown
valueOid			oid
valuePositiveInt			positiveInt
valueString			string
valueTime			time
valueUnsignedInt			unsignedInt
valueUri			uri
valueUrl			url
valueUuid			uuid
valueAddress			Address
valueAge			Age
valueAnnotation			Annotation
valueAttachment			Attachment
valueCodeableConcept			CodeableConcept
valueCoding			Coding
valueContactPoint			ContactPoint
valueCount			Count
valueDistance			Distance
valueDuration			Duration
valueHumanName			HumanName
valueIdentifier			Identifier
valueMoney			Money
valuePeriod			Period
valueQuantity			Quantity
valueRange			Range
valueRatio			Ratio
valueReference			Reference(Any)
valueSampledData			SampledData
valueSignature			Signature
valueTiming			Timing
valueContactDetail			ContactDetail
valueContributor			Contributor
valueDataRequirement			DataRequirement
valueExpression			Expression
valueParameterDefinition			ParameterDefinition
valueRelatedArtifact			RelatedArtifact
valueTriggerDefinition			TriggerDefinition
valueUsageContext			UsageContext
valueDosage			Dosage
valueMeta			Meta
output		0..*	BackboneElement	Information produced as part of task
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type		1..1	CodeableConcept	Label for output Binding Description: (example): Codes to identify types of input parameters. These will typically be specific to a particular workflow. E.g. "Identified issues", "Preliminary results", "Filler order", "Final results", etc.
value[x]		1..1		Result of output
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical(Any)
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
valueMarkdown			markdown
valueOid			oid
valuePositiveInt			positiveInt
valueString			string
valueTime			time
valueUnsignedInt			unsignedInt
valueUri			uri
valueUrl			url
valueUuid			uuid
valueAddress			Address
valueAge			Age
valueAnnotation			Annotation
valueAttachment			Attachment
valueCodeableConcept			CodeableConcept
valueCoding			Coding
valueContactPoint			ContactPoint
valueCount			Count
valueDistance			Distance
valueDuration			Duration
valueHumanName			HumanName
valueIdentifier			Identifier
valueMoney			Money
valuePeriod			Period
valueQuantity			Quantity
valueRange			Range
valueRatio			Ratio
valueReference			Reference(Any)
valueSampledData			SampledData
valueSignature			Signature
valueTiming			Timing
valueContactDetail			ContactDetail
valueContributor			Contributor
valueDataRequirement			DataRequirement
valueExpression			Expression
valueParameterDefinition			ParameterDefinition
valueRelatedArtifact			RelatedArtifact
valueTriggerDefinition			TriggerDefinition
valueUsageContext			UsageContext
valueDosage			Dosage
valueMeta			Meta
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Task.language	Base	preferred	Common Languages	📍4.0.1	FHIR Std.
Task.status	Base	required	TaskStatus	📍4.0.1	FHIR Std.
Task.statusReason	Base	example		Not State	Unknown
Task.businessStatus	Base	example		Not State	Unknown
Task.intent	Base	required	TaskIntent	📍4.0.1	FHIR Std.
Task.priority	Base	required	Request priority	📍4.0.1	FHIR Std.
Task.code	Base	example	Task Codes	📍4.0.1	FHIR Std.
Task.for.type	Base	extensible	ResourceType	📍4.0.1	FHIR Std.
Task.requester.type	Base	extensible	ResourceType	📍4.0.1	FHIR Std.
Task.performerType	Base	preferred	Procedure Performer Role Codes	📍4.0.1	FHIR Std.
Task.owner.type	Base	extensible	ResourceType	📍4.0.1	FHIR Std.
Task.reasonCode	Base	example		Not State	Unknown
Task.input.type	Base	example		Not State	Unknown
Task.output.type	Base	example		Not State	Unknown

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	Task	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	Task	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Task	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Task	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	Task	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
inv-1	error	Task	Last modified date must be greater than or equal to authored-on date.	lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Task	C	0..*	Task	A task to be performed Constraints: inv-1
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	S	0..*	CorrelationIdentifier	Task Instance Identifier
groupIdentifier	SΣ	0..1	CorrelationIdentifier	Requisition or grouper id
status	?!SΣ	1..1	code	draft | requested | received | accepted | + Binding: TaskStatus (required): The current status of the task.
intent	SΣ	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option Binding: TaskIntent (required): Distinguishes whether the task is a proposal, plan or full order.
code	Σ	1..1	CodeableConcept	Task Type Binding: TaskCode (example): Codes to identify what the task involves. These will typically be specific to a particular workflow.
focus	SΣ	1..1	Reference(ServiceRequest | Specimen)	What task is acting on
for	SΣ	1..1	Reference(Patient)	Beneficiary of the Task
identifier	Σ	0..1	NHSNumber	Logical reference, when literal reference is not known
authoredOn	C	1..1	dateTime	Task Creation Date
requester	SΣ	1..1	Reference(PractitionerRole | Organization)	Who is asking for task to be done
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
owner	SΣ	1..1	Reference(PractitionerRole | Organization)	Responsible individual
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Task.status	Base	required	TaskStatus	📍4.0.1	FHIR Std.
Task.intent	Base	required	TaskIntent	📍4.0.1	FHIR Std.
Task.code	Base	example	Task Codes	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	Task	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	Task	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Task	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Task	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	Task	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
inv-1	error	Task	Last modified date must be greater than or equal to authored-on date.	lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn

Differential View

This structure is derived from Task

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Task		0..*	Task	A task to be performed
identifier	S	0..*	CorrelationIdentifier	Task Instance Identifier
groupIdentifier	S	0..1	CorrelationIdentifier	Requisition or grouper id
status	S	1..1	code	draft | requested | received | accepted | +
intent	S	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
code		1..1	CodeableConcept	Task Type
focus	S	1..1	Reference(ServiceRequest | Specimen)	What task is acting on
for	S	1..1	Reference(Patient)	Beneficiary of the Task
identifier		0..1	NHSNumber	Logical reference, when literal reference is not known
authoredOn		1..1	dateTime	Task Creation Date
requester	S	1..1	Reference(PractitionerRole | Organization)	Who is asking for task to be done
identifier		0..1	OrganisationCode	Logical reference, when literal reference is not known
owner	S	1..1	Reference(PractitionerRole | Organization)	Responsible individual
identifier		0..1	OrganisationCode	Logical reference, when literal reference is not known
Documentation for this format

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Task	C	0..*	Task	A task to be performed Constraints: inv-1
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	S	0..*	CorrelationIdentifier	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(Resource)	Request fulfilled by this task
groupIdentifier	SΣ	0..1	CorrelationIdentifier	Requisition or grouper id
partOf	Σ	0..*	Reference(Task)	Composite task
status	?!SΣ	1..1	code	draft | requested | received | accepted | + Binding: TaskStatus (required): The current status of the task.
statusReason	Σ	0..1	CodeableConcept	Reason for current status Binding Description: (example): Codes to identify the reason for current status. These will typically be specific to a particular workflow.
businessStatus	Σ	0..1	CodeableConcept	E.g. "Specimen collected", "IV prepped" Binding Description: (example): The domain-specific business-contextual sub-state of the task. For example: "Blood drawn", "IV inserted", "Awaiting physician signature", etc.
intent	SΣ	1..1	code	unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option Binding: TaskIntent (required): Distinguishes whether the task is a proposal, plan or full order.
priority		0..1	code	routine | urgent | asap | stat Binding: RequestPriority (required): The task's priority.
code	Σ	1..1	CodeableConcept	Task Type Binding: TaskCode (example): Codes to identify what the task involves. These will typically be specific to a particular workflow.
description	Σ	0..1	string	Human-readable explanation of task
focus	SΣ	1..1	Reference(ServiceRequest | Specimen)	What task is acting on
for	SΣ	1..1	Reference(Patient)	Beneficiary of the Task
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	ΣC	0..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	NHSNumber	Logical reference, when literal reference is not known
display	Σ	0..1	string	Text alternative for the resource
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	C	1..1	dateTime	Task Creation Date
lastModified	ΣC	0..1	dateTime	Task Last Modified Date
requester	SΣ	1..1	Reference(PractitionerRole | Organization)	Who is asking for task to be done
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	ΣC	0..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
display	Σ	0..1	string	Text alternative for the resource
performerType		0..*	CodeableConcept	Requested performer Binding: ProcedurePerformerRoleCodes (preferred): The type(s) of task performers allowed.
owner	SΣ	1..1	Reference(PractitionerRole | Organization)	Responsible individual
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
reference	ΣC	0..1	string	Literal reference, Relative, internal or absolute URL
type	Σ	0..1	uri	Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier	Σ	0..1	OrganisationCode	Logical reference, when literal reference is not known
display	Σ	0..1	string	Text alternative for the resource
location	Σ	0..1	Reference(Location)	Where task occurs
reasonCode		0..1	CodeableConcept	Why task is needed Binding Description: (example): Indicates why the task is needed. E.g. Suspended because patient admitted to hospital.
reasonReference		0..1	Reference(Resource)	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
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
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
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type		1..1	CodeableConcept	Label for the input Binding Description: (example): Codes to identify types of input parameters. These will typically be specific to a particular workflow. E.g. "Comparison source", "Applicable consent", "Concomitent Medications", etc.
value[x]		1..1		Content to use in performing the task
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical(Any)
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
valueMarkdown			markdown
valueOid			oid
valuePositiveInt			positiveInt
valueString			string
valueTime			time
valueUnsignedInt			unsignedInt
valueUri			uri
valueUrl			url
valueUuid			uuid
valueAddress			Address
valueAge			Age
valueAnnotation			Annotation
valueAttachment			Attachment
valueCodeableConcept			CodeableConcept
valueCoding			Coding
valueContactPoint			ContactPoint
valueCount			Count
valueDistance			Distance
valueDuration			Duration
valueHumanName			HumanName
valueIdentifier			Identifier
valueMoney			Money
valuePeriod			Period
valueQuantity			Quantity
valueRange			Range
valueRatio			Ratio
valueReference			Reference(Any)
valueSampledData			SampledData
valueSignature			Signature
valueTiming			Timing
valueContactDetail			ContactDetail
valueContributor			Contributor
valueDataRequirement			DataRequirement
valueExpression			Expression
valueParameterDefinition			ParameterDefinition
valueRelatedArtifact			RelatedArtifact
valueTriggerDefinition			TriggerDefinition
valueUsageContext			UsageContext
valueDosage			Dosage
valueMeta			Meta
output		0..*	BackboneElement	Information produced as part of task
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type		1..1	CodeableConcept	Label for output Binding Description: (example): Codes to identify types of input parameters. These will typically be specific to a particular workflow. E.g. "Identified issues", "Preliminary results", "Filler order", "Final results", etc.
value[x]		1..1		Result of output
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical(Any)
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
valueMarkdown			markdown
valueOid			oid
valuePositiveInt			positiveInt
valueString			string
valueTime			time
valueUnsignedInt			unsignedInt
valueUri			uri
valueUrl			url
valueUuid			uuid
valueAddress			Address
valueAge			Age
valueAnnotation			Annotation
valueAttachment			Attachment
valueCodeableConcept			CodeableConcept
valueCoding			Coding
valueContactPoint			ContactPoint
valueCount			Count
valueDistance			Distance
valueDuration			Duration
valueHumanName			HumanName
valueIdentifier			Identifier
valueMoney			Money
valuePeriod			Period
valueQuantity			Quantity
valueRange			Range
valueRatio			Ratio
valueReference			Reference(Any)
valueSampledData			SampledData
valueSignature			Signature
valueTiming			Timing
valueContactDetail			ContactDetail
valueContributor			Contributor
valueDataRequirement			DataRequirement
valueExpression			Expression
valueParameterDefinition			ParameterDefinition
valueRelatedArtifact			RelatedArtifact
valueTriggerDefinition			TriggerDefinition
valueUsageContext			UsageContext
valueDosage			Dosage
valueMeta			Meta
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
Task.language	Base	preferred	Common Languages	📍4.0.1	FHIR Std.
Task.status	Base	required	TaskStatus	📍4.0.1	FHIR Std.
Task.statusReason	Base	example		Not State	Unknown
Task.businessStatus	Base	example		Not State	Unknown
Task.intent	Base	required	TaskIntent	📍4.0.1	FHIR Std.
Task.priority	Base	required	Request priority	📍4.0.1	FHIR Std.
Task.code	Base	example	Task Codes	📍4.0.1	FHIR Std.
Task.for.type	Base	extensible	ResourceType	📍4.0.1	FHIR Std.
Task.requester.type	Base	extensible	ResourceType	📍4.0.1	FHIR Std.
Task.performerType	Base	preferred	Procedure Performer Role Codes	📍4.0.1	FHIR Std.
Task.owner.type	Base	extensible	ResourceType	📍4.0.1	FHIR Std.
Task.reasonCode	Base	example		Not State	Unknown
Task.input.type	Base	example		Not State	Unknown
Task.output.type	Base	example		Not State	Unknown

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	Task	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	Task	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Task	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Task	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	Task	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
inv-1	error	Task	Last modified date must be greater than or equal to authored-on date.	lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn

This structure is derived from Task

Summary

Mandatory: 6 elements
Must-Support: 8 elements

Structures

This structure refers to these other structures:

• Correlation Identifier (https://fhir.nwgenomics.nhs.uk/StructureDefinition/CorrelationIdentifier)
• ServiceRequest (https://fhir.nwgenomics.nhs.uk/StructureDefinition/ServiceRequest)
• Specimen (https://fhir.nwgenomics.nhs.uk/StructureDefinition/Specimen)
• Patient (https://fhir.nwgenomics.nhs.uk/StructureDefinition/Patient)
• NHS Number (https://fhir.nwgenomics.nhs.uk/StructureDefinition/NHSNumber)
• PractitionerRole (https://fhir.nwgenomics.nhs.uk/StructureDefinition/PractitionerRole)
• Organization (https://fhir.nwgenomics.nhs.uk/StructureDefinition/Organization)
• Organisation Code (https://fhir.nwgenomics.nhs.uk/StructureDefinition/OrganisationCode)