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StructureDefinition: ehealth-task

Introduction

A task resource describes an activity that can be performed and tracks the state of completion of that activity. It is a representation that an activity should be or has been initiated, and eventually, represents the successful or unsuccessful completion of that activity.

Scope and Usage

In scope of the eHealth Infrastructure, the Task resource is used for:

• tracking an activity to be performed by a Practitioner, CareTeam or Organization. The entity responsible for performing the Task is identified through the extension ehealth-task-responsible.
• coordinating which Practitioner has assigned or been assigned a Task. This is identified through owner.

Task resources are produced by eHealth Infrastructure as reaction to measurements being submitted or expected measurements not being submitted. Measurements in the form of Observation, QuestionnaireResponse or other resources are expected to be submitted by a Patient according to a measurement regime specified in a CarePlan and referenced CarePlan/ProcedureRequest.

The context in which the Task is created is identified through context. In the eHealth Infrastructure, this is currently a reference to an EpisodeOfCare, but in future use, it could be a reference to an Encounter. The focus element describes what resource the Task responsible should be acting on and can reference any resource.

Use of Task for coordinating assessment of submitted measurement

The eHealth Infrastructure supports triaging based on comparison of submitted measurements against reference ranges specified in CarePlan/ProcedureRequest. The result of triaging is captured in a ClinicalImpression which is referenced as Task focus in a Task created by the eHealth Infrastructure. The Task has:

• Task owner that references a selected CareTeam of the CarePlan
• Task category is a coding that states need to assess a triaging result
• Task restriction category is a coding that can be used to restrict access to the task, for instance restricting a task so only monitoring responsibles can access it
• Task priority reflecting the triaging result

Use of Task for resolving missing or unexpected measurement

In case the eHealth Infrastructure detects that measurement submissions are missing, it creates a Communication to the Patient reminding to follow measurement regime. It also creates a Task:

• Task owner references the CareTeam of the CarePlan
• Task category is coding that states need to resolve why measurement submission is missing
• Task focus references the Communication

An unexpected measurement can be in terms of unexpected measurement type, for instance observation code or questionnaire not specified in the CarePlan/ProcedureRequest, or in terms of measurement with odd timing compared to the measurement regime.

In case the eHealth Infrastructure detects an unexpected measurement submission, it creates a ClinicalImpression resource stating this. It also creates a Task where:

• Task owner references the CareTeam of the CarePlan
• Task category is coding that states need to resolve unexpected measurement submission
• Task focus references the ClinicalImpression

No use of Task for coordinating measuring to be performed by Patient

No Task resources are created to assist in adhering to a measurement regime.

Use of Task in coordinating activities across multiple patients

The Task has been extended with support for CareTeam as Task owner. It is expected that each CareTeam will provide support/monitoring of multiple patients. The Task resources owned by a CareTeam can form a list sorted by priority to support triaging.

The Task has also been extended with support for multiple Task owner. This way, CareTeam members can coordinate Task assignments (by adding Practitioner as Task owner and setting Task status) while preserving the CareTeam as fallback in case the Practitioner is unable to process the Task, for instance due to absence.

Formal Views of Profile Content

The official URL for this profile is:

http://ehealth.sundhed.dk/fhir/StructureDefinition/ehealth-task

This profile builds on Task.

This profile was published on Fri Nov 08 13:01:00 UTC 2019 as a draft by ehealth.sundhed.dk.

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

 

Terminology Bindings

Path	Conformance	ValueSet
Task.language	extensible	Common Languages Max Binding: All Languages
Task.groupIdentifier.use	required	IdentifierUse
Task.groupIdentifier.type	extensible	Identifier Type Codes
Task.status	required	TaskStatus
Task.statusReason	example
Task.businessStatus	example
Task.intent	required	RequestIntent
Task.priority	required	RequestPriority
Task.code	example
Task.performerType	preferred	TaskPerformerType
Task.reason	example
Task.input.type	example
Task.output.type	example

Constraints

Id	Path	Details	Requirements
dom-2	Task	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-1	Task	If the resource is contained in another resource, it SHALL NOT contain any narrative : contained.text.empty()
dom-4	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-3	Task	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource : contained.where(('#'+id in %resource.descendants().reference).not()).empty()
inv-1	Task	Last modified date must be greater than or equal to authored-on date. : lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn
ele-1	Task.extension	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ext-1	Task.extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	Task.extension	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ext-1	Task.extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	Task.extension	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ext-1	Task.extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	Task.extension	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ext-1	Task.extension	Must have either extensions or value[x], not both : extension.exists() != value.exists()
ele-1	Task.requester	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ele-1	Task.restriction	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ele-1	Task.input	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())
ele-1	Task.output	All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count())

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