HL7 Belgium Patient Care
1.1.0 - R4 Belgium flag

This page is part of the HL7 BE Patient-care IG (v1.1.0: STU 1) based on FHIR (HL7® FHIR® Standard) R4. No current official version has been published yet. For a full list of available versions, see the Directory of published versions

Resource Profile: BeTask - Detailed Descriptions

Active as of 2021-01-18

Definitions for the be-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
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().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: 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)
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)
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 it's 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 it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Task.extension
Definition

An Extension


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 manageable, 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.

ShortExtensionAdditional 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.

Control10..*
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.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. Task.extension:task-candidateList
    Slice Nametask-candidateList
    Definition

    Identifies the individuals who are candidates for being the owner of the task.

    ShortList of possible owners of Task
    Comments

    In some environments, this list might be binding (i.e. owner must be one of the listed individuals), in others it may be suggestive (i.e. preferred owner will be from this list, but business processes may allow assignment to someone not on the list.

    Control1..*
    TypeExtension(Candidate List) (Extension Type: Reference(Device, Organization, Patient, Practitioner, RelatedPerson))
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    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())
    ele-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.extension:task-candidateList.extension
    Definition

    An Extension


    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 manageable, 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.

    ShortExtensionAdditional 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..0*
    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())
    ele-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.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 10. Task.extension:task-candidateList.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://hl7.org/fhir/StructureDefinition/task-candidateList
      12. Task.extension:task-candidateList.value[x]
      Definition

      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortValue of extension
      Control10..1
      This element is affected by the following invariants: ext-1
      TypeReference(BePatient, BePractitioner, BeOrganization, RelatedPerson), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      14. 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 manageable, 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
      Summaryfalse
      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())
      16. Task.identifier
      Definition

      The business identifier for this task.

      ShortTask Instance Identifier
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..*
      TypeIdentifier
      Is Modifierfalse
      Must Supporttrue
      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.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ system
      • 18. 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|4.0.1
        (required to http://hl7.org/fhir/ValueSet/task-status|4.0.1)

        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 Supporttrue
        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()))
        20. 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|4.0.1
        (required to http://hl7.org/fhir/ValueSet/task-intent|4.0.1)

        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
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        22. 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
        Control0..1
        TypeReference(Resource)
        Is Modifierfalse
        Must Supporttrue
        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()))
        24. Task.requester
        Definition

        The creator of the task.

        ShortWho is asking for task to be done
        Control0..1
        TypeReference(BePatient, BePractitioner, BeOrganization, RelatedPerson, BePractitionerRole, Device, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson)
        Is Modifierfalse
        Must Supporttrue
        Must Support TypesNo must-support rules about the choice of types/profiles
        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()))
        26. Task.owner
        Definition

        Individual organization or Device currently responsible for task execution.

        ShortResponsible individual
        Comments

        Tasks may be created with an owner not yet identified.

        Control0..1
        TypeReference(BePatient, BePractitioner, BeOrganization, BeCareTeam, RelatedPerson, BePractitionerRole, Practitioner, PractitionerRole, Organization, CareTeam, HealthcareService, Patient, Device, RelatedPerson)
        Is Modifierfalse
        Must Supporttrue
        Must Support TypesNo must-support rules about the choice of types/profiles
        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()))

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

        0. Task
        2. Task.extension
        Control1..?
        SlicingThis element introduces a set of slices on Task.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 4. Task.extension:task-candidateList
          Slice Nametask-candidateList
          Control1..*
          TypeExtension(Candidate List) (Extension Type: Reference(Device, Organization, Patient, Practitioner, RelatedPerson))
          Must Supporttrue
          6. Task.extension:task-candidateList.value[x]
          TypeReference(BePatient, BePractitioner, BeOrganization, RelatedPerson)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          8. Task.identifier
          NoteThis is a business identifier, not a resource identifier (see discussion)
          Must Supporttrue
          SlicingThis element introduces a set of slices on Task.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ system
          • 10. Task.status
            Must Supporttrue
            12. Task.for
            Must Supporttrue
            14. Task.requester
            TypeReference(BePatient, BePractitioner, BeOrganization, RelatedPerson, BePractitionerRole)
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            16. Task.owner
            TypeReference(BePatient, BePractitioner, BeOrganization, BeCareTeam, RelatedPerson, BePractitionerRole)
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles

            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
            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().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
            dom-4: 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)
            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

            The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

            Control0..1
            Typeid
            Is Modifierfalse
            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
            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 it's 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 it's meaning or interpretation
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            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 SHOULD be taken from CommonLanguages
            (preferred to http://hl7.org/fhir/ValueSet/languages|4.0.1)

            A human language.

            Additional BindingsPurpose
            AllLanguagesMax Binding
            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            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 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
            TypeNarrative
            Is Modifierfalse
            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, and nor can they have their own independent transaction scope.

            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..*
            TypeResource
            Is Modifierfalse
            Summaryfalse
            Alternate Namesinline resources, anonymous resources, contained resources
            14. Task.extension
            Definition

            An Extension

            ShortExtension
            Control1..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            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.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 16. Task.extension:task-candidateList
              Slice Nametask-candidateList
              Definition

              Identifies the individuals who are candidates for being the owner of the task.

              ShortList of possible owners of Task
              Comments

              In some environments, this list might be binding (i.e. owner must be one of the listed individuals), in others it may be suggestive (i.e. preferred owner will be from this list, but business processes may allow assignment to someone not on the list.

              Control1..*
              TypeExtension(Candidate List) (Extension Type: Reference(Device, Organization, Patient, Practitioner, RelatedPerson))
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              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.extension:task-candidateList.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
              20. Task.extension:task-candidateList.extension
              Definition

              An Extension

              ShortExtension
              Control0..0
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              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.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 22. Task.extension:task-candidateList.url
                Definition

                Source of the definition for the extension code - a logical name or a URL.

                Shortidentifies the meaning of the extension
                Comments

                The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                Control1..1
                Typeuri
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                Fixed Valuehttp://hl7.org/fhir/StructureDefinition/task-candidateList
                24. Task.extension:task-candidateList.value[x]
                Definition

                Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                ShortValue of extension
                Control1..1
                This element is affected by the following invariants: ext-1
                TypeReference(BePatient, BePractitioner, BeOrganization, RelatedPerson)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                26. 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 manageable, 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
                Summaryfalse
                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())
                28. Task.identifier
                Definition

                The business identifier for this task.

                ShortTask Instance Identifier
                NoteThis is a business identifier, not a resource identifier (see discussion)
                Control0..*
                TypeIdentifier
                Is Modifierfalse
                Must Supporttrue
                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.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ system
                • 30. 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
                  Summarytrue
                  Requirements

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

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  32. 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
                  Summarytrue
                  Requirements

                  Enables a formal definition of how he 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()))
                  34. 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, ServiceRequest, CarePlan, etc. which is distinct from the "request" resource the task is seeking to fulfill. This latter resource is referenced by FocusOn. For example, based on a ServiceRequest (= BasedOn), a task is created to fulfill a procedureRequest ( = FocusOn ) to collect a specimen from a patient.

                  ShortRequest fulfilled by this task
                  Control0..*
                  TypeReference(Resource)
                  Is Modifierfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  36. Task.groupIdentifier
                  Definition

                  An identifier that links together multiple tasks and other requests that were created in the same context.

                  ShortRequisition or grouper id
                  Control0..1
                  TypeIdentifier
                  Is Modifierfalse
                  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()))
                  38. Task.partOf
                  Definition

                  Task that this particular task is part of.

                  ShortComposite task
                  Comments

                  This should usually be 0..1.

                  Control0..*
                  TypeReference(Task)
                  Is Modifierfalse
                  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()))
                  40. 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|4.0.1)

                  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 Supporttrue
                  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()))
                  42. 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
                  Binding

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

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

                  Contains business-specific nuances of the business state.

                  ShortE.g. "Specimen collected", "IV prepped"
                  Control0..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
                  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()))
                  46. 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|4.0.1)

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

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

                  Shortroutine | urgent | asap | stat
                  Control0..1
                  BindingThe codes SHALL be taken from RequestPriority
                  (required to http://hl7.org/fhir/ValueSet/request-priority|4.0.1)

                  The task's priority.

                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  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()))
                  50. 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
                  BindingFor example codes, see TaskCode
                  (example to http://hl7.org/fhir/ValueSet/task-code|4.0.1)

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

                  TypeCodeableConcept
                  Is Modifierfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  52. 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
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  54. Task.focus
                  Definition

                  The request being actioned or the resource being manipulated 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
                  TypeReference(Resource)
                  Is Modifierfalse
                  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()))
                  56. 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
                  Control0..1
                  TypeReference(Resource)
                  Is Modifierfalse
                  Must Supporttrue
                  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()))
                  58. 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
                  Control0..1
                  TypeReference(Encounter)
                  Is Modifierfalse
                  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()))
                  60. 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
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  62. Task.authoredOn
                  Definition

                  The date and time this task was created.

                  ShortTask Creation 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
                  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()))
                  64. 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
                  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()))
                  66. Task.requester
                  Definition

                  The creator of the task.

                  ShortWho is asking for task to be done
                  Control0..1
                  TypeReference(BePatient, BePractitioner, BeOrganization, RelatedPerson, BePractitionerRole)
                  Is Modifierfalse
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  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()))
                  68. Task.performerType
                  Definition

                  The kind of participant that should perform the task.

                  ShortRequested performer
                  Control0..*
                  BindingThe codes SHOULD be taken from ProcedurePerformerRoleCodes
                  (preferred to http://hl7.org/fhir/ValueSet/performer-role|4.0.1)

                  The type(s) of task performers allowed.

                  TypeCodeableConcept
                  Is Modifierfalse
                  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()))
                  70. Task.owner
                  Definition

                  Individual organization or Device currently responsible for task execution.

                  ShortResponsible individual
                  Comments

                  Tasks may be created with an owner not yet identified.

                  Control0..1
                  TypeReference(BePatient, BePractitioner, BeOrganization, BeCareTeam, RelatedPerson, BePractitionerRole)
                  Is Modifierfalse
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  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()))
                  72. Task.location
                  Definition

                  Principal physical location where the this task is performed.

                  ShortWhere task occurs
                  Control0..1
                  TypeReference(Location)
                  Is Modifierfalse
                  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()))
                  74. Task.reasonCode
                  Definition

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

                  ShortWhy task is needed
                  Comments

                  This should only be included if there is no focus or if it differs from the reason indicated on the focus.

                  Control0..1
                  Binding

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

                  TypeCodeableConcept
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  76. Task.reasonReference
                  Definition

                  A resource reference indicating why this task needs to be performed.

                  ShortWhy task is needed
                  Comments

                  Tasks might be justified based on an Observation, a Condition, a past or planned procedure, etc. This should only be included if there is no focus or if it differs from the reason indicated on the focus. Use the CodeableConcept text element in Task.reasonCode if the data is free (uncoded) text.

                  Control0..1
                  TypeReference(Resource)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  78. 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
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  80. Task.note
                  Definition

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

                  ShortComments made about the task
                  Control0..*
                  TypeAnnotation
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  82. 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
                  Summaryfalse
                  Alternate NamesStatus History
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  84. 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
                  Control0..1
                  TypeBackboneElement
                  Is Modifierfalse
                  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()))
                  86. 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
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  88. 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 manageable, 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())
                  90. 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 manageable, 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())
                  92. 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
                  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()))
                  94. Task.restriction.period
                  Definition

                  Over what time-period is fulfillment sought.

                  ShortWhen fulfillment sought
                  Comments

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

                  Control0..1
                  TypePeriod
                  Is Modifierfalse
                  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()))
                  96. Task.restriction.recipient
                  Definition

                  For requests that are targeted to more than on potential recipient/target, for whom is fulfillment sought?

                  ShortFor whom is fulfillment sought?
                  Control0..*
                  TypeReference(Patient, Practitioner, PractitionerRole, RelatedPerson, Group, Organization)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  98. Task.input
                  Definition

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

                  ShortInformation used to perform task
                  Control0..*
                  TypeBackboneElement
                  Is Modifierfalse
                  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()))
                  100. 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
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  102. 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 manageable, 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())
                  104. 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 manageable, 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())
                  106. 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
                  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()))
                  108. 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, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, 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
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  110. Task.output
                  Definition

                  Outputs produced by the Task.

                  ShortInformation produced as part of task
                  Control0..*
                  TypeBackboneElement
                  Is Modifierfalse
                  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()))
                  112. 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
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  114. 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 manageable, 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())
                  116. 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 manageable, 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())
                  118. 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
                  Is Modifierfalse
                  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()))
                  120. 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, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, 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
                  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()))