SGHI FHIR Profile Implementation Guide
0.1.0 - ci-build

SGHI FHIR Profile Implementation Guide, published by Kathurima Kimathi. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/savannahghi/sil_fhir_profile_ig/ and changes regularly. See the Directory of published versions

Resource Profile: SGHITask - Detailed Descriptions

Draft as of 2025-09-04

Definitions for the sghi-task resource profile.

Guidance on how to interpret the contents of this table can be foundhere

0. Task
Definition

A task to be performed.

ShortA task to be performed
Control0..*
Is Modifierfalse
Must Supportfalse
Summaryfalse
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: 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().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: 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: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
inv-1: Last modified date must be greater than or equal to authored-on date. (lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn)
tsk-1: Task.restriction is only allowed if the Task is seeking fulfillment and a focus is specified. (restriction.exists() implies code.coding.where(code='fulfill' and system='http://hl7.org/fhir/CodeSystem/task-code').exists() and focus.exists())
task-lastModified: Last modified date must be greater than or equal to authored-on date (lastModified.empty() or authoredOn.empty() or lastModified >= authoredOn)
2. Task.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of its narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies its meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Task.contained
Definition

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

ShortContained, inline Resources
Comments

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags in their meta elements, but SHALL NOT have security labels.

Control0..*
This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
TypeResource
Is Modifierfalse
Must Supportfalse
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
6. Task.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Must Supportfalse
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
8. Task.identifier
Definition

The business identifier for this task.

ShortTask Instance Identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control10..*
TypeIdentifier
Is Modifierfalse
Must Supportfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. Task.identifier.use
Definition

The purpose of this identifier.

Shortusual | official | temp | secondary | old (If known)
Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Control0..1
BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|5.0.0
(required to http://hl7.org/fhir/ValueSet/identifier-use)
Typecode
Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Task.identifier.type
Definition

A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

ShortDescription of identifier
Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Control0..1
BindingThe codes SHALL be taken from Unless not suitable, these codes SHALL be taken from SGHI Standard Identifier Typeshttp://hl7.org/fhir/ValueSet/identifier-type
(required to https://fhir.slade360.co.ke/fhir/ValueSet/sghi-identifier-types)
TypeCodeableConcept(SGHI CodeableConcept)
Is Modifierfalse
Summarytrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
14. Task.identifier.system
Definition

Establishes the namespace for the value - that is, an absolute URL that describes a set values that are unique.

ShortThe namespace for the identifier value
Comments

Identifier.system is always case sensitive.

Control10..1
Typeuri
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

ExampleGeneral: http://www.acme.com/identifiers/patient
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. Task.identifier.value
Definition

The portion of the identifier typically relevant to the user and which is unique within the context of the system.

ShortThe value that is unique
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the http://hl7.org/fhir/StructureDefinition/rendered-value). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Control10..1
This element is affected by the following invariants: ident-1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
ExampleGeneral: 123456
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. Task.identifier.assigner
Definition

Organization that issued/manages the identifier.

ShortOrganization that issued id (may be just text)
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Control10..1
TypeReference(SGHI Reference)(SGHI Organization, Organization)
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Task.partOf
Definition

Task that this particular task is part of.

ShortComposite task
Comments

This should usually be 0..1.

Control0..*
TypeReference(SGHI Reference)(SGHI Task, Task)
Is Modifierfalse
Must Supportfalse
Summarytrue
Requirements

Allows tasks to be broken down into sub-steps (and this division can occur independent of the original task).

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. Task.status
Definition

The current status of the task.

Shortdraft | requested | received | accepted | +
Control1..1
BindingThe codes SHALL be taken from TaskStatushttp://hl7.org/fhir/ValueSet/task-status|5.0.0
(required to http://hl7.org/fhir/ValueSet/task-status|5.0.0)

The current status of the task.

Typecode
Is Modifiertrue because 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
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summarytrue
Requirements

These states enable coordination of task status with off-the-shelf workflow solutions that support automation of tasks.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. Task.businessStatus
Definition

Contains business-specific nuances of the business state.

ShortE.g. "Specimen collected", "IV prepped"
Control10..1
Binding

The domain-specific business-contextual sub-state of the task. For example: "Blood drawn", "IV inserted", "Awaiting physician signature", etc.

TypeCodeableConcept
Is Modifierfalse
Must Supportfalse
Summarytrue
Requirements

There's often a need to track substates of a task - this is often variable by specific workflow implementation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
26. Task.intent
Definition

Indicates the "level" of actionability associated with the Task, i.e. i+R[9]Cs this a proposed task, a planned task, an actionable task, etc.

Shortunknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
Comments

This element is immutable. Proposed tasks, planned tasks, etc. must be distinct instances.

In most cases, Tasks will have an intent of "order".

Control1..1
BindingThe codes SHALL be taken from TaskIntenthttp://hl7.org/fhir/ValueSet/task-intent|5.0.0
(required to http://hl7.org/fhir/ValueSet/task-intent|5.0.0)

Distinguishes whether the task is a proposal, plan or full order.

Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. Task.priority
Definition

Indicates how quickly the Task should be addressed with respect to other requests.

Shortroutine | urgent | asap | stat
Control10..1
BindingThe codes SHALL be taken from RequestPriorityhttp://hl7.org/fhir/ValueSet/request-priority|5.0.0
(required to http://hl7.org/fhir/ValueSet/request-priority|5.0.0)

The priority of a task (may affect service level applied to the task).

Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summaryfalse
Requirements

Used to identify the service level expected while performing a task.

Meaning if MissingIf missing, this task should be performed with normal priority
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. Task.doNotPerform
Definition

If true indicates that the Task is asking for the specified action to not occur.

ShortTrue if Task is prohibiting action
Comments

The attributes provided with the Task qualify what is not to be done. For example, if a requestedPeriod is provided, the 'do not' request only applies within the specified time. If a requestedPerformer is specified then the 'do not' request only applies to performers of that type. Qualifiers include: code, subject, occurrence, requestedPerformer and performer.

In some cases, the Request.code may pre-coordinate prohibition into the requested action. E.g. 'NPO' (nothing by mouth), 'DNR' (do not recussitate). If this happens, doNotPerform SHALL NOT be set to true. I.e. The resource shall not have double negation. (E.g. 'Do not DNR').

doNotPerform should ONLY be used with Tasks that are tightly bounded in time or process phase. E.g. 'Do not fulfill the midnight dose of medication X tonight due to the early morning scheduled procedure, where the nurse could reasonably check off 'Med X not given at midnight as instructed'. Similarly, a decision support proposal that a patient should not be given a standard intake questionnaire (because the patient is cognitively impaired) would be marked as 'complete' or 'rejected' when the clinician preps the CarePlan or order set after reviewing the decision support results. If there is a need to create a standing order to not do something that can't be satisfied by a single 'non-action', but rather an ongoing refusal to perform the function, MedicationRequest, ServiceRequest or some other form of authorization should be used.

Control0..1
Typeboolean
Is Modifiertrue because If true, this element negates the Task. For example, instead of a request to perform a task, it is a request _not_ to perform a task.
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
32. Task.for
Definition

The entity who benefits from the performance of the service specified in the task (e.g., the patient).

ShortBeneficiary of the Task
Control10..1
TypeReference(SGHI Reference)(SGHI Patient, Resource)
Is Modifierfalse
Must Supportfalse
Summarytrue
Requirements

Used to track tasks outstanding for a beneficiary. Do not use to track the task owner or creator (see owner and creator respectively). This can also affect access control.

Alternate NamesPatient
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. Task.encounter
Definition

The healthcare event (e.g. a patient and healthcare provider interaction) during which this task was created.

ShortHealthcare event during which this task originated
Control10..1
TypeReference(SGHI Reference)(SGHI Encounter, Encounter)
Is Modifierfalse
Must Supportfalse
Summarytrue
Requirements

For some tasks it may be important to know the link between the encounter the task originated within.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
36. Task.authoredOn
Definition

The date and time this task was created.

ShortTask Creation Date
Control10..1
This element is affected by the following invariants: inv-1
TypedateTime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summaryfalse
Requirements

Most often used along with lastUpdated to track duration of task to supporting monitoring and management.

Alternate NamesCreated Date
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
38. Task.requester
Definition

The creator of the task.

ShortWho is asking for task to be done
Control10..1
TypeReference(SGHI Reference)(SGHI Patient, SGHI Organization, Device, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson)
Is Modifierfalse
Must Supportfalse
Summarytrue
Requirements

Identifies who created this task. May be used by access control mechanisms (e.g., to ensure that only the creator can cancel a task).

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. Task.requestedPerformer
Definition

The kind of participant or specific participant that should perform the task.

ShortWho should perform Task
Control10..*
BindingThe codes SHOULD be taken from ProcedurePerformerRoleCodeshttp://hl7.org/fhir/ValueSet/performer-role
(preferred to http://hl7.org/fhir/ValueSet/performer-role)

The type(s) of task performers allowed.

TypeCodeableReference(SGHI CodeableReference)(SGHI Organization, Practitioner, PractitionerRole, Organization, CareTeam, HealthcareService, Patient, Device, RelatedPerson)
Is Modifierfalse
Must Supportfalse
Summaryfalse
Requirements

Use to distinguish tasks on different activity queues.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. Task.owner
Definition

Party responsible for managing task execution.

ShortResponsible individual
Comments

Tasks may be created with an owner not yet identified.

Control10..1
TypeReference(SGHI Reference)(SGHI Organization, Practitioner, PractitionerRole, Organization, CareTeam, Patient, RelatedPerson)
Is Modifierfalse
Must Supportfalse
Summarytrue
Requirements

Identifies who is expected to perform this task.

Alternate NamesPerformer, Executer
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. Task.performer
Definition

The entity who performed the requested task.

ShortWho or what performed the task
Control0..1*
TypeBackboneElement
Is Modifierfalse
Must Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
46. Task.performer.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
48. Task.performer.actor
Definition

The actor or entity who performed the task.

ShortWho performed the task
Control1..1
TypeReference(SGHI Reference)(SGHI Organization, Practitioner, PractitionerRole, Organization, CareTeam, Patient, RelatedPerson)
Is Modifierfalse
Must Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

Guidance on how to interpret the contents of this table can be foundhere

0. Task
Invariantstask-lastModified: Last modified date must be greater than or equal to authored-on date (lastModified.empty() or authoredOn.empty() or lastModified >= authoredOn)
2. Task.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control1..?
4. Task.identifier.use
BindingThe codes SHALL be taken from IdentifierUse
(required to http://hl7.org/fhir/ValueSet/identifier-use)
6. Task.identifier.type
BindingThe codes SHALL be taken from SGHI Standard Identifier Types
(required to https://fhir.slade360.co.ke/fhir/ValueSet/sghi-identifier-types)
TypeCodeableConcept(SGHI CodeableConcept)
8. Task.identifier.system
Control1..?
10. Task.identifier.value
Control1..?
12. Task.identifier.assigner
Control1..?
TypeReference(SGHI Reference)(SGHI Organization)
14. Task.partOf
TypeReference(SGHI Reference)(SGHI Task)
16. Task.businessStatus
Control1..?
18. Task.priority
Control1..?
20. Task.for
Control1..?
TypeReference(SGHI Reference)(SGHI Patient)
22. Task.encounter
Control1..?
TypeReference(SGHI Reference)(SGHI Encounter)
24. Task.authoredOn
Control1..?
26. Task.requester
Control1..?
TypeReference(SGHI Reference)(SGHI Patient, SGHI Organization)
28. Task.requestedPerformer
Control1..?
TypeCodeableReference(SGHI CodeableReference)(SGHI Organization)
30. Task.owner
Control1..?
TypeReference(SGHI Reference)(SGHI Organization)
32. Task.performer
Control0..1
34. Task.performer.actor
TypeReference(SGHI Reference)(SGHI Organization)
36. Task.restriction
38. Task.restriction.recipient
TypeReference(SGHI Reference)(SGHI Patient)
40. Task.input
42. Task.input.value[x]
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
SlicingThis element introduces a set of slices on Task.input.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
  • 44. Task.input.value[x]:valueCodeableConcept
    Slice NamevalueCodeableConcept
    Control0..1
    TypeCodeableConcept(SGHI CodeableConcept)
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    46. Task.input.value[x]:valueCodeableReference
    Slice NamevalueCodeableReference
    Control0..1
    TypeCodeableReference(SGHI CodeableReference)
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    48. Task.input.value[x]:valueDosage
    Slice NamevalueDosage
    Control0..1
    TypeDosage(SGHI Dosage)
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    50. Task.output
    52. Task.output.type
    TypeCodeableConcept(SGHI CodeableConcept)
    54. Task.output.value[x]
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    SlicingThis element introduces a set of slices on Task.output.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • type @ $this
    • 56. Task.output.value[x]:valueCodeableConcept
      Slice NamevalueCodeableConcept
      Control0..1
      TypeCodeableConcept(SGHI CodeableConcept)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      58. Task.output.value[x]:valueCodeableReference
      Slice NamevalueCodeableReference
      Control0..1
      TypeCodeableReference(SGHI CodeableReference)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      60. Task.output.value[x]:valueDosage
      Slice NamevalueDosage
      Control0..1
      TypeDosage(SGHI Dosage)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]

      Guidance on how to interpret the contents of this table can be foundhere

      0. Task
      Definition

      A task to be performed.

      ShortA task to be performed
      Control0..*
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
      dom-3: 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().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
      dom-4: 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: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
      dom-6: A resource should have narrative for robust management (text.`div`.exists())
      inv-1: Last modified date must be greater than or equal to authored-on date. (lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn)
      tsk-1: Task.restriction is only allowed if the Task is seeking fulfillment and a focus is specified. (restriction.exists() implies code.coding.where(code='fulfill' and system='http://hl7.org/fhir/CodeSystem/task-code').exists() and focus.exists())
      task-lastModified: Last modified date must be greater than or equal to authored-on date (lastModified.empty() or authoredOn.empty() or lastModified >= authoredOn)
      2. Task.id
      Definition

      The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

      ShortLogical id of this artifact
      Comments

      Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.

      Control0..1
      Typeid
      Is Modifierfalse
      Must Supportfalse
      Summarytrue
      4. Task.meta
      Definition

      The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

      ShortMetadata about the resource
      Control0..1
      TypeMeta
      Is Modifierfalse
      Must Supportfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      6. Task.implicitRules
      Definition

      A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

      ShortA set of rules under which this content was created
      Comments

      Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of its narrative along with other profiles, value sets, etc.

      Control0..1
      Typeuri
      Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies its meaning or interpretation
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supportfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      8. Task.language
      Definition

      The base language in which the resource is written.

      ShortLanguage of the resource content
      Comments

      Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

      Control0..1
      BindingThe codes SHALL be taken from AllLanguages
      (required to http://hl7.org/fhir/ValueSet/all-languages|5.0.0)

      IETF language tag for a human language

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supportfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      10. Task.text
      Definition

      A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

      ShortText summary of the resource, for human interpretation
      Comments

      Contained resources do not have a narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

      Control0..1
      This element is affected by the following invariants: dom-6
      TypeNarrative
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Alternate Namesnarrative, html, xhtml, display
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. Task.contained
      Definition

      These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

      ShortContained, inline Resources
      Comments

      This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags in their meta elements, but SHALL NOT have security labels.

      Control0..*
      This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
      TypeResource
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Alternate Namesinline resources, anonymous resources, contained resources
      14. Task.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      16. Task.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
      Must Supportfalse
      Summarytrue
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      18. Task.identifier
      Definition

      The business identifier for this task.

      ShortTask Instance Identifier
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control1..*
      TypeIdentifier
      Is Modifierfalse
      Must Supportfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      20. Task.identifier.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      This element is affected by the following invariants: ele-1
      Typeid
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      22. Task.identifier.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on Task.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 24. Task.identifier.use
        Definition

        The purpose of this identifier.

        Shortusual | official | temp | secondary | old (If known)
        Comments

        Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

        Control0..1
        BindingThe codes SHALL be taken from IdentifierUse
        (required to http://hl7.org/fhir/ValueSet/identifier-use)
        Typecode
        Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        26. Task.identifier.type
        Definition

        A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

        ShortDescription of identifier
        Comments

        This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

        Control0..1
        BindingThe codes SHALL be taken from SGHI Standard Identifier Types
        (required to https://fhir.slade360.co.ke/fhir/ValueSet/sghi-identifier-types)
        TypeCodeableConcept(SGHI CodeableConcept)
        Is Modifierfalse
        Summarytrue
        Requirements

        Allows users to make use of identifiers when the identifier system is not known.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        28. Task.identifier.system
        Definition

        Establishes the namespace for the value - that is, an absolute URL that describes a set values that are unique.

        ShortThe namespace for the identifier value
        Comments

        Identifier.system is always case sensitive.

        Control1..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

        ExampleGeneral: http://www.acme.com/identifiers/patient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        30. Task.identifier.value
        Definition

        The portion of the identifier typically relevant to the user and which is unique within the context of the system.

        ShortThe value that is unique
        Comments

        If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the http://hl7.org/fhir/StructureDefinition/rendered-value). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

        Control1..1
        This element is affected by the following invariants: ident-1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        ExampleGeneral: 123456
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        32. Task.identifier.period
        Definition

        Time period during which identifier is/was valid for use.

        ShortTime period when id is/was valid for use
        Control0..1
        TypePeriod
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        34. Task.identifier.assigner
        Definition

        Organization that issued/manages the identifier.

        ShortOrganization that issued id (may be just text)
        Comments

        The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

        Control1..1
        TypeReference(SGHI Reference)(SGHI Organization)
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        36. Task.instantiatesCanonical
        Definition

        The URL pointing to a FHIR-defined protocol, guideline, orderset or other definition that is adhered to in whole or in part by this Task.

        ShortFormal definition of task
        Control0..1
        Typecanonical(ActivityDefinition)
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Requirements

        Enables a formal definition of how the task is to be performed, enabling automation.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        38. Task.instantiatesUri
        Definition

        The URL pointing to an externally maintained protocol, guideline, orderset or other definition that is adhered to in whole or in part by this Task.

        ShortFormal definition of task
        Control0..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Requirements

        Enables a formal definition of how the task is to be performed (e.g. using BPMN, BPEL, XPDL or other formal notation to be associated with a task), enabling automation.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        40. Task.basedOn
        Definition

        BasedOn refers to a higher-level authorization that triggered the creation of the task. It references a "request" resource such as a ServiceRequest, MedicationRequest, CarePlan, etc. which is distinct from the "request" resource the task is seeking to fulfill. This latter resource is referenced by focus. For example, based on a CarePlan (= basedOn), a task is created to fulfill a ServiceRequest ( = focus ) to collect a specimen from a patient.

        ShortRequest fulfilled by this task
        Comments

        Task.basedOn is never the same as Task.focus. Task.basedOn will typically not be present for 'please fulfill' Tasks as a distinct authorization is rarely needed to request fulfillment. If the Task is seeking fulfillment of an order, the order to be fulfilled is always communicated using focus, never basedOn. However, authorization may be needed to perform other types of Task actions. As an example of when both would be present, a Task seeking suspension of a prescription might have a Task.basedOn pointing to the ServiceRequest ordering surgery (which is the driver for suspending the MedicationRequest - which would be the Task.focus).

        Control0..*
        TypeReference(Resource)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        42. Task.groupIdentifier
        Definition

        A shared identifier common to multiple independent Task and Request instances that were activated/authorized more or less simultaneously by a single author. The presence of the same identifier on each request ties those requests together and may have business ramifications in terms of reporting of results, billing, etc. E.g. a requisition number shared by a set of lab tests ordered together, or a prescription number shared by all meds ordered at one time.

        ShortRequisition or grouper id
        Control0..1
        TypeIdentifier
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Billing and/or reporting can be linked to whether multiple requests were created as a single unit.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        44. Task.partOf
        Definition

        Task that this particular task is part of.

        ShortComposite task
        Comments

        This should usually be 0..1.

        Control0..*
        TypeReference(SGHI Reference)(SGHI Task)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Allows tasks to be broken down into sub-steps (and this division can occur independent of the original task).

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        46. Task.status
        Definition

        The current status of the task.

        Shortdraft | requested | received | accepted | +
        Control1..1
        BindingThe codes SHALL be taken from TaskStatus
        (required to http://hl7.org/fhir/ValueSet/task-status|5.0.0)

        The current status of the task.

        Typecode
        Is Modifiertrue because 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
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Requirements

        These states enable coordination of task status with off-the-shelf workflow solutions that support automation of tasks.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        48. Task.statusReason
        Definition

        An explanation as to why this task is held, failed, was refused, etc.

        ShortReason for current status
        Comments

        This applies to the current status. Look at the history of the task to see reasons for past statuses.

        Control0..1
        BindingFor example codes, see TaskStatusReason
        (example to http://hl7.org/fhir/ValueSet/task-status-reason)

        Codes to identify the reason for current status. These will typically be specific to a particular workflow.

        TypeCodeableReference
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        50. Task.businessStatus
        Definition

        Contains business-specific nuances of the business state.

        ShortE.g. "Specimen collected", "IV prepped"
        Control1..1
        Binding

        The domain-specific business-contextual sub-state of the task. For example: "Blood drawn", "IV inserted", "Awaiting physician signature", etc.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        There's often a need to track substates of a task - this is often variable by specific workflow implementation.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        52. Task.intent
        Definition

        Indicates the "level" of actionability associated with the Task, i.e. i+R[9]Cs this a proposed task, a planned task, an actionable task, etc.

        Shortunknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
        Comments

        This element is immutable. Proposed tasks, planned tasks, etc. must be distinct instances.

        In most cases, Tasks will have an intent of "order".

        Control1..1
        BindingThe codes SHALL be taken from TaskIntent
        (required to http://hl7.org/fhir/ValueSet/task-intent|5.0.0)

        Distinguishes whether the task is a proposal, plan or full order.

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        54. Task.priority
        Definition

        Indicates how quickly the Task should be addressed with respect to other requests.

        Shortroutine | urgent | asap | stat
        Control1..1
        BindingThe codes SHALL be taken from RequestPriority
        (required to http://hl7.org/fhir/ValueSet/request-priority|5.0.0)

        The priority of a task (may affect service level applied to the task).

        Typecode
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summaryfalse
        Requirements

        Used to identify the service level expected while performing a task.

        Meaning if MissingIf missing, this task should be performed with normal priority
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        56. Task.doNotPerform
        Definition

        If true indicates that the Task is asking for the specified action to not occur.

        ShortTrue if Task is prohibiting action
        Comments

        The attributes provided with the Task qualify what is not to be done. For example, if a requestedPeriod is provided, the 'do not' request only applies within the specified time. If a requestedPerformer is specified then the 'do not' request only applies to performers of that type. Qualifiers include: code, subject, occurrence, requestedPerformer and performer.

        In some cases, the Request.code may pre-coordinate prohibition into the requested action. E.g. 'NPO' (nothing by mouth), 'DNR' (do not recussitate). If this happens, doNotPerform SHALL NOT be set to true. I.e. The resource shall not have double negation. (E.g. 'Do not DNR').

        doNotPerform should ONLY be used with Tasks that are tightly bounded in time or process phase. E.g. 'Do not fulfill the midnight dose of medication X tonight due to the early morning scheduled procedure, where the nurse could reasonably check off 'Med X not given at midnight as instructed'. Similarly, a decision support proposal that a patient should not be given a standard intake questionnaire (because the patient is cognitively impaired) would be marked as 'complete' or 'rejected' when the clinician preps the CarePlan or order set after reviewing the decision support results. If there is a need to create a standing order to not do something that can't be satisfied by a single 'non-action', but rather an ongoing refusal to perform the function, MedicationRequest, ServiceRequest or some other form of authorization should be used.

        Control0..1
        Typeboolean
        Is Modifiertrue because If true, this element negates the Task. For example, instead of a request to perform a task, it is a request _not_ to perform a task.
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        58. Task.code
        Definition

        A name or code (or both) briefly describing what the task involves.

        ShortTask Type
        Comments

        The title (eg "My Tasks", "Outstanding Tasks for Patient X") should go into the code.

        Control0..1
        This element is affected by the following invariants: tsk-1
        BindingFor example codes, see TaskCode
        (example to http://hl7.org/fhir/ValueSet/task-code)

        Codes to identify what the task involves. These will typically be specific to a particular workflow.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        60. Task.description
        Definition

        A free-text description of what is to be performed.

        ShortHuman-readable explanation of task
        Control0..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        62. Task.focus
        Definition

        The request being fulfilled or the resource being manipulated (changed, suspended, etc.) by this task.

        ShortWhat task is acting on
        Comments

        If multiple resources need to be manipulated, use sub-tasks. (This ensures that status can be tracked independently for each referenced resource.).

        Control0..1
        This element is affected by the following invariants: tsk-1
        TypeReference(Resource)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Used to identify the thing to be done.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        64. Task.for
        Definition

        The entity who benefits from the performance of the service specified in the task (e.g., the patient).

        ShortBeneficiary of the Task
        Control1..1
        TypeReference(SGHI Reference)(SGHI Patient)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Used to track tasks outstanding for a beneficiary. Do not use to track the task owner or creator (see owner and creator respectively). This can also affect access control.

        Alternate NamesPatient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        66. Task.encounter
        Definition

        The healthcare event (e.g. a patient and healthcare provider interaction) during which this task was created.

        ShortHealthcare event during which this task originated
        Control1..1
        TypeReference(SGHI Reference)(SGHI Encounter)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        For some tasks it may be important to know the link between the encounter the task originated within.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        68. Task.requestedPeriod
        Definition

        Indicates the start and/or end of the period of time when completion of the task is desired to take place.

        ShortWhen the task should be performed
        Comments

        This is typically used when the Task is not seeking fulfillment of a focus Request, as in that case the period would be specified on the Request and/or in the Task.restriction.period. Instead, it is used for stand-alone tasks.

        Control0..1
        TypePeriod
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        70. Task.executionPeriod
        Definition

        Identifies the time action was first taken against the task (start) and/or the time final action was taken against the task prior to marking it as completed (end).

        ShortStart and end time of execution
        Control0..1
        TypePeriod
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        72. Task.authoredOn
        Definition

        The date and time this task was created.

        ShortTask Creation Date
        Control1..1
        This element is affected by the following invariants: inv-1
        TypedateTime
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summaryfalse
        Requirements

        Most often used along with lastUpdated to track duration of task to supporting monitoring and management.

        Alternate NamesCreated Date
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        74. Task.lastModified
        Definition

        The date and time of last modification to this task.

        ShortTask Last Modified Date
        Control0..1
        This element is affected by the following invariants: inv-1
        TypedateTime
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Requirements

        Used along with history to track task activity and time in a particular task state. This enables monitoring and management.

        Alternate NamesUpdate Date
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        76. Task.requester
        Definition

        The creator of the task.

        ShortWho is asking for task to be done
        Control1..1
        TypeReference(SGHI Reference)(SGHI Patient, SGHI Organization)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Identifies who created this task. May be used by access control mechanisms (e.g., to ensure that only the creator can cancel a task).

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        78. Task.requestedPerformer
        Definition

        The kind of participant or specific participant that should perform the task.

        ShortWho should perform Task
        Control1..*
        BindingThe codes SHOULD be taken from ProcedurePerformerRoleCodes
        (preferred to http://hl7.org/fhir/ValueSet/performer-role)

        The type(s) of task performers allowed.

        TypeCodeableReference(SGHI CodeableReference)(SGHI Organization)
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Requirements

        Use to distinguish tasks on different activity queues.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        80. Task.owner
        Definition

        Party responsible for managing task execution.

        ShortResponsible individual
        Comments

        Tasks may be created with an owner not yet identified.

        Control1..1
        TypeReference(SGHI Reference)(SGHI Organization)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Identifies who is expected to perform this task.

        Alternate NamesPerformer, Executer
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        82. Task.performer
        Definition

        The entity who performed the requested task.

        ShortWho or what performed the task
        Control0..1
        TypeBackboneElement
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        84. Task.performer.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        This element is affected by the following invariants: ele-1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        86. Task.performer.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        88. Task.performer.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        90. Task.performer.function
        Definition

        A code or description of the performer of the task.

        ShortType of performance
        Control0..1
        Binding

        Codes to identify types of task performers.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        92. Task.performer.actor
        Definition

        The actor or entity who performed the task.

        ShortWho performed the task
        Control1..1
        TypeReference(SGHI Reference)(SGHI Organization)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        94. Task.location
        Definition

        Principal physical location where this task is performed.

        ShortWhere task occurs
        Comments

        This should only be specified when the Task to be/being performed happens or is expected to happen primarily within the bounds of a single Location. Other locations (e.g. source, destination, etc.) would either be reflected on the 'basedOn' Request or be conveyed as distinct Task.input values.

        Control0..1
        TypeReference(Location)
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Ties the event to where the records are likely kept and provides context around the event occurrence (e.g. if it occurred inside or outside a dedicated healthcare setting).

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        96. Task.reason
        Definition

        A description, code, or reference indicating why this task needs to be performed.

        ShortWhy task is needed
        Comments

        This will typically not be present for Tasks with a code of 'please fulfill' as, for those, the reason for action is conveyed on the Request pointed to by Task.focus. Some types of tasks will not need a 'reason'. E.g. a request to discharge a patient can be inferred to be 'because the patient is ready' and this would not need a reason to be stated on the Task.

        Control0..*
        Binding

        Indicates why the task is needed. E.g. Suspended because patient admitted to hospital.

        TypeCodeableReference
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        98. Task.insurance
        Definition

        Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be relevant to the Task.

        ShortAssociated insurance coverage
        Control0..*
        TypeReference(Coverage, ClaimResponse)
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        100. Task.note
        Definition

        Free-text information captured about the task as it progresses.

        ShortComments made about the task
        Control0..*
        TypeAnnotation
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        102. Task.relevantHistory
        Definition

        Links to Provenance records for past versions of this Task that identify key state transitions or updates that are likely to be relevant to a user looking at the current version of the task.

        ShortKey events in history of the Task
        Comments

        This element does not point to the Provenance associated with the current version of the resource - as it would be created after this version existed. The Provenance for the current version can be retrieved with a _revinclude.

        Control0..*
        TypeReference(Provenance)
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Alternate NamesStatus History
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        104. Task.restriction
        Definition

        If the Task.focus is a request resource and the task is seeking fulfillment (i.e. is asking for the request to be actioned), this element identifies any limitations on what parts of the referenced request should be actioned.

        ShortConstraints on fulfillment tasks
        Comments

        Task.restriction can only be present if the Task is seeking fulfillment of another Request resource, and the restriction identifies what subset of the authorization conveyed by the request is supposed to be fulfilled by this Task. A possible example could be a standing order (the request) covering a significant time period and/or individuals, while the Task seeks fulfillment for only a subset of that time-period and a single individual.

        Control0..1
        This element is affected by the following invariants: tsk-1
        TypeBackboneElement
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Requirements

        Sometimes when fulfillment is sought, you don't want full fulfillment.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        106. Task.restriction.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        This element is affected by the following invariants: ele-1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        108. Task.restriction.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        110. Task.restriction.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        112. Task.restriction.repetitions
        Definition

        Indicates the number of times the requested action should occur.

        ShortHow many times to repeat
        Control0..1
        TypepositiveInt
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summaryfalse
        Requirements

        E.g. order that requests monthly lab tests, fulfillment is sought for 1.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        114. Task.restriction.period
        Definition

        The time-period for which fulfillment is sought. This must fall within the overall time period authorized in the referenced request. E.g. ServiceRequest.occurance[x].

        ShortWhen fulfillment is sought
        Comments

        This is distinct from Task.executionPeriod. ExecutionPeriod indicates when the task needs to be initiated, while Task.restriction.period specifies the subset of the overall authorization that this period covers. For example, a MedicationRequest with an overall effective period of 1 year might have a Task whose restriction.period is 2 months (i.e. satisfy 2 months of medication therapy), while the execution period might be 'between now and 5 days from now' - i.e. If you say yes to this, then you're agreeing to supply medication for that 2 month period within the next 5 days.

        Note that period.high is the due date representing the time by which the task should be completed.

        Control0..1
        TypePeriod
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Requirements

        E.g. order that authorizes 1 year's services. Fulfillment is sought for next 3 months.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        116. Task.restriction.recipient
        Definition

        For requests that are targeted to more than one potential recipient/target, to identify who is fulfillment is sought for.

        ShortFor whom is fulfillment sought?
        Control0..*
        TypeReference(SGHI Reference)(SGHI Patient)
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        118. Task.input
        Definition

        Additional information that may be needed in the execution of the task.

        ShortInformation used to perform task
        Control0..*
        TypeBackboneElement
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Requirements

        Resources and data used to perform the task. This data is used in the business logic of task execution, and is stored separately because it varies between workflows.

        Alternate NamesSupporting Information
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        120. Task.input.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        This element is affected by the following invariants: ele-1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        122. Task.input.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        124. Task.input.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        126. Task.input.type
        Definition

        A code or description indicating how the input is intended to be used as part of the task execution.

        ShortLabel for the input
        Comments

        If referencing a BPMN workflow or Protocol, the "system" is the URL for the workflow definition and the code is the "name" of the required input.

        Control1..1
        Binding

        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.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Requirements

        Inputs are named to enable task automation to bind data and pass it from one task to the next.

        Alternate NamesName
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        128. Task.input.value[x]
        Definition

        The value of the input parameter as a basic type.

        ShortContent to use in performing the task
        Control1..1
        TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, integer64, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, CodeableReference, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, RatioRange, Reference, SampledData, Signature, Timing, ContactDetail, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Availability, ExtendedContactDetail, Dosage, Meta
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        SlicingThis element introduces a set of slices on Task.input.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • type @ $this
        • 130. Task.input.value[x]:valueCodeableConcept
          Slice NamevalueCodeableConcept
          Definition

          The value of the input parameter as a basic type.

          ShortContent to use in performing the task
          Control0..1
          TypeCodeableConcept(SGHI CodeableConcept)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          132. Task.input.value[x]:valueCodeableReference
          Slice NamevalueCodeableReference
          Definition

          The value of the input parameter as a basic type.

          ShortContent to use in performing the task
          Control0..1
          TypeCodeableReference(SGHI CodeableReference)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          134. Task.input.value[x]:valueDosage
          Slice NamevalueDosage
          Definition

          The value of the input parameter as a basic type.

          ShortContent to use in performing the task
          Control0..1
          TypeDosage(SGHI Dosage)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          136. Task.output
          Definition

          Outputs produced by the Task.

          ShortInformation produced as part of task
          Control0..*
          TypeBackboneElement
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          Resources and data produced during the execution the task. This data is generated by the business logic of task execution, and is stored separately because it varies between workflows.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          138. Task.output.id
          Definition

          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

          ShortUnique id for inter-element referencing
          Control0..1
          This element is affected by the following invariants: ele-1
          Typestring
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          140. Task.output.extension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

          ShortAdditional content defined by implementations
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Alternate Namesextensions, user content
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          142. Task.output.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          144. Task.output.type
          Definition

          The name of the Output parameter.

          ShortLabel for output
          Control1..1
          Binding

          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.

          TypeCodeableConcept(SGHI CodeableConcept)
          Is Modifierfalse
          Must Supportfalse
          Summaryfalse
          Requirements

          Outputs are named to enable task automation to bind data and pass it from one task to the next.

          Alternate NamesName
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          146. Task.output.value[x]
          Definition

          The value of the Output parameter as a basic type.

          ShortResult of output
          Control1..1
          TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, integer64, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, CodeableReference, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, RatioRange, Reference, SampledData, Signature, Timing, ContactDetail, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Availability, ExtendedContactDetail, Dosage, Meta
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supportfalse
          Summaryfalse
          Requirements

          Task outputs can take any form.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          SlicingThis element introduces a set of slices on Task.output.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • type @ $this
          • 148. Task.output.value[x]:valueCodeableConcept
            Slice NamevalueCodeableConcept
            Definition

            The value of the Output parameter as a basic type.

            ShortResult of output
            Control0..1
            TypeCodeableConcept(SGHI CodeableConcept)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Requirements

            Task outputs can take any form.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            150. Task.output.value[x]:valueCodeableReference
            Slice NamevalueCodeableReference
            Definition

            The value of the Output parameter as a basic type.

            ShortResult of output
            Control0..1
            TypeCodeableReference(SGHI CodeableReference)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Requirements

            Task outputs can take any form.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            152. Task.output.value[x]:valueDosage
            Slice NamevalueDosage
            Definition

            The value of the Output parameter as a basic type.

            ShortResult of output
            Control0..1
            TypeDosage(SGHI Dosage)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Requirements

            Task outputs can take any form.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))