Bidirectional Services eReferral (BSeR)
2.0.0-ballot - STU2 United States of America flag

Bidirectional Services eReferral (BSeR), published by HL7 Public Health Working Group. This guide is not an authorized publication; it is the continuous build for version 2.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/bser/ and changes regularly. See the Directory of published versions

Resource Profile: BSeRReferralTask - Detailed Descriptions

Active as of 2024-04-17

Definitions for the BSeR-ReferralTask resource profile.

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

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.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())
6. 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 are unordered and Open, and can be differentiated using the following discriminators:
  • value @ type
  • 8. Task.identifier:referralInitiatorTaskIdentifier
    Slice NamereferralInitiatorTaskIdentifier
    Definition

    The business identifier for this task.

    ShortTask Instance Identifier
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control0..1*
    TypeIdentifier
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Task.identifier:referralInitiatorTaskIdentifier.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|4.0.1
    (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

    Identifies the purpose for this identifier, if known .

    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:referralInitiatorTaskIdentifier.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.

    Control10..1
    BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codeshttp://hl7.org/fhir/ValueSet/identifier-type
    (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

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

    Pattern Value{
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
        "code" : "PLAC"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    14. Task.identifier:referralInitiatorTaskIdentifier.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 Rendered Value extension. 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
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Example<br/><b>General</b>:123456
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    16. Task.identifier:referralInitiatorTaskIdentifier.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.

    Control0..1
    TypeReference(US Core Organization Profile, Organization)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    18. Task.identifier:referralRecipientTaskIdentifier
    Slice NamereferralRecipientTaskIdentifier
    Definition

    The business identifier for this task.

    ShortTask Instance Identifier
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control0..1*
    TypeIdentifier
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    20. Task.identifier:referralRecipientTaskIdentifier.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|4.0.1
    (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

    Identifies the purpose for this identifier, if known .

    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()))
    22. Task.identifier:referralRecipientTaskIdentifier.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.

    Control10..1
    BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codeshttp://hl7.org/fhir/ValueSet/identifier-type
    (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

    TypeCodeableConcept
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

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

    Pattern Value{
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
        "code" : "FILL"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    24. Task.identifier:referralRecipientTaskIdentifier.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 Rendered Value extension. 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
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Example<br/><b>General</b>:123456
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    26. Task.identifier:referralRecipientTaskIdentifier.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(US Core Organization Profile, Organization)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    28. 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
    Must Supporttrue
    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()))
    SlicingThis element introduces a set of slices on Task.partOf. The slices are unordered and Open, and can be differentiated using the following discriminators:
    • profile @ resolve()
    • 30. Task.partOf:supportedPartOf
      Slice NamesupportedPartOf
      Definition

      Task that this particular task is part of.

      ShortComposite task
      Comments

      This should usually be 0..1.

      Control0..*
      TypeReference(Referral Task, Task)
      Is Modifierfalse
      Must Supporttrue
      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()))
      32. 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()))
      34. 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
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      36. Task.statusReason.text
      Definition

      A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

      ShortPlain text representation of the concept
      Comments

      Very often the text is the same as a displayName of one of the codings.

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

      The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

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

      Contains business-specific nuances of the business state.

      ShortE.g. "Specimen collected", "IV prepped"
      Control0..1
      BindingUnless not suitable, these codes SHALL be taken from For example codes, see Task Business Status VS
      (extensible to http://hl7.org/fhir/us/bser/ValueSet/TaskBusinessStatusVS)
      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      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()))
      40. Task.businessStatus.text
      Definition

      A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

      ShortPlain text representation of the concept
      Comments

      Very often the text is the same as a displayName of one of the codings.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summarytrue
      Requirements

      The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

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

      Shortorderunknown | 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
      Must Supporttrue
      Summarytrue
      Fixed Valueorder
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      44. Task.code
      Definition

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

      ShortFulfill the focal requestTask Type
      Comments

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

      Control10..1
      BindingFor example codes, see TaskCodehttp://hl7.org/fhir/ValueSet/task-code
      (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 Supporttrue
      Summarytrue
      Pattern Value{
        "coding" : [{
          "system" : "http://hl7.org/fhir/CodeSystem/task-code",
          "code" : "fulfill"
        }]
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      46. 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.).

      Control10..1
      TypeReference(BSeR Referral Service Request, Resource)
      Is Modifierfalse
      Must Supporttrue
      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()))
      48. 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(US Core Patient Profile, 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()))
      50. 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 Supporttrue
      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()))
      52. Task.requester
      Definition

      The creator of the task.

      ShortReferral InitiatorWho is asking for task to be done
      Control10..1
      TypeReference(US Core PractitionerRole Profile, US Core Practitioner Profile, US Core Organization Profile, 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()))
      54. Task.owner
      Definition

      Individual organization or Device currently responsible for task execution.

      ShortReferral RecipientResponsible individual
      Comments

      Tasks may be created with an owner not yet identified.

      Control10..1
      TypeReference(US Core Practitioner Profile, US Core PractitionerRole Profile, US Core Organization Profile, US Core CareTeam Profile, HealthcareService, US Core Patient Profile, Device, US Core RelatedPerson Profile, Practitioner, PractitionerRole, Organization, CareTeam, Patient, 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()))
      56. Task.note
      Definition

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

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

      Outputs produced by the Task.

      ShortInformation produced as part of task
      Control0..*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      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()))
      60. 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())
      62. 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()))
      64. Task.output.value[x]
      Definition

      The value of the Output parameter as a basic type.

      ShortResult of output
      Control1..1
      TypeReference(BSeR Referral Feedback Document Bundle), 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] NoteSee Choice of Data Types for further information about how to use [x]
      Is Modifierfalse
      Must Supporttrue
      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()))

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

      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)

      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

      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.

      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())
      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 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())
      18. 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 are unordered and Open, and can be differentiated using the following discriminators:
      • value @ type
      • 20. Task.identifier:referralInitiatorTaskIdentifier
        Slice NamereferralInitiatorTaskIdentifier
        Definition

        The business identifier for this task.

        ShortTask Instance Identifier
        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..1
        TypeIdentifier
        Is Modifierfalse
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        22. Task.identifier:referralInitiatorTaskIdentifier.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
        24. Task.identifier:referralInitiatorTaskIdentifier.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())
        SlicingThis element introduces a set of slices on Task.identifier.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 26. Task.identifier:referralInitiatorTaskIdentifier.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|4.0.1)

          Identifies the purpose for this identifier, if known .

          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()))
          28. Task.identifier:referralInitiatorTaskIdentifier.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.

          Control1..1
          BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
          (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

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

          Pattern Value{
            "coding" : [{
              "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
              "code" : "PLAC"
            }]
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. Task.identifier:referralInitiatorTaskIdentifier.system
          Definition

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

          ShortThe namespace for the identifier value
          Comments

          Identifier.system is always case sensitive.

          Control0..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.

          Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. Task.identifier:referralInitiatorTaskIdentifier.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 Rendered Value extension. 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
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Example<br/><b>General</b>:123456
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          34. Task.identifier:referralInitiatorTaskIdentifier.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()))
          36. Task.identifier:referralInitiatorTaskIdentifier.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.

          Control0..1
          TypeReference(US Core Organization Profile)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. Task.identifier:referralRecipientTaskIdentifier
          Slice NamereferralRecipientTaskIdentifier
          Definition

          The business identifier for this task.

          ShortTask Instance Identifier
          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..1
          TypeIdentifier
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. Task.identifier:referralRecipientTaskIdentifier.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
          42. Task.identifier:referralRecipientTaskIdentifier.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())
          SlicingThis element introduces a set of slices on Task.identifier.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 44. Task.identifier:referralRecipientTaskIdentifier.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|4.0.1)

            Identifies the purpose for this identifier, if known .

            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()))
            46. Task.identifier:referralRecipientTaskIdentifier.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.

            Control1..1
            BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
            (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Requirements

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

            Pattern Value{
              "coding" : [{
                "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
                "code" : "FILL"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            48. Task.identifier:referralRecipientTaskIdentifier.system
            Definition

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

            ShortThe namespace for the identifier value
            Comments

            Identifier.system is always case sensitive.

            Control0..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.

            Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            50. Task.identifier:referralRecipientTaskIdentifier.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 Rendered Value extension. 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
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summarytrue
            Example<br/><b>General</b>:123456
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            52. Task.identifier:referralRecipientTaskIdentifier.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()))
            54. Task.identifier:referralRecipientTaskIdentifier.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(US Core Organization Profile)
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            56. 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()))
            58. 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()))
            60. 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()))
            62. 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()))
            64. 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
            Must Supporttrue
            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()))
            SlicingThis element introduces a set of slices on Task.partOf. The slices are unordered and Open, and can be differentiated using the following discriminators:
            • profile @ resolve()
            • 66. Task.partOf:supportedPartOf
              Slice NamesupportedPartOf
              Definition

              Task that this particular task is part of.

              ShortComposite task
              Comments

              This should usually be 0..1.

              Control0..*
              TypeReference(Referral Task)
              Is Modifierfalse
              Must Supporttrue
              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()))
              68. 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()))
              70. 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
              Must Supporttrue
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              72. Task.statusReason.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
              74. Task.statusReason.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())
              SlicingThis element introduces a set of slices on Task.statusReason.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 76. Task.statusReason.coding
                Definition

                A reference to a code defined by a terminology system.

                ShortCode defined by a terminology system
                Comments

                Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                Control0..*
                TypeCoding
                Is Modifierfalse
                Summarytrue
                Requirements

                Allows for alternative encodings within a code system, and translations to other code systems.

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

                A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                ShortPlain text representation of the concept
                Comments

                Very often the text is the same as a displayName of one of the codings.

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

                The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

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

                Contains business-specific nuances of the business state.

                ShortE.g. "Specimen collected", "IV prepped"
                Control0..1
                BindingUnless not suitable, these codes SHALL be taken from Task Business Status VS
                (extensible to http://hl7.org/fhir/us/bser/ValueSet/TaskBusinessStatusVS)
                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                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()))
                82. Task.businessStatus.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
                84. Task.businessStatus.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())
                SlicingThis element introduces a set of slices on Task.businessStatus.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 86. Task.businessStatus.coding
                  Definition

                  A reference to a code defined by a terminology system.

                  ShortCode defined by a terminology system
                  Comments

                  Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                  Control0..*
                  TypeCoding
                  Is Modifierfalse
                  Summarytrue
                  Requirements

                  Allows for alternative encodings within a code system, and translations to other code systems.

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

                  A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                  ShortPlain text representation of the concept
                  Comments

                  Very often the text is the same as a displayName of one of the codings.

                  Control0..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  90. 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.

                  Shortorder
                  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
                  Must Supporttrue
                  Summarytrue
                  Fixed Valueorder
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  92. 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()))
                  94. Task.code
                  Definition

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

                  ShortFulfill the focal request
                  Comments

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

                  Control1..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 Supporttrue
                  Summarytrue
                  Pattern Value{
                    "coding" : [{
                      "system" : "http://hl7.org/fhir/CodeSystem/task-code",
                      "code" : "fulfill"
                    }]
                  }
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  96. 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()))
                  98. 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.).

                  Control1..1
                  TypeReference(BSeR Referral Service Request)
                  Is Modifierfalse
                  Must Supporttrue
                  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()))
                  100. 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(US Core Patient Profile)
                  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()))
                  102. 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()))
                  104. 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()))
                  106. 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 Supporttrue
                  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()))
                  108. 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()))
                  110. Task.requester
                  Definition

                  The creator of the task.

                  ShortReferral Initiator
                  Control1..1
                  TypeReference(US Core PractitionerRole Profile, US Core Practitioner Profile, US Core Organization Profile)
                  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()))
                  112. 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)

                  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()))
                  114. Task.owner
                  Definition

                  Individual organization or Device currently responsible for task execution.

                  ShortReferral Recipient
                  Comments

                  Tasks may be created with an owner not yet identified.

                  Control1..1
                  TypeReference(US Core Practitioner Profile, US Core PractitionerRole Profile, US Core Organization Profile, US Core CareTeam Profile, HealthcareService, US Core Patient Profile, Device, US Core RelatedPerson Profile)
                  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()))
                  116. 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()))
                  118. 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()))
                  120. 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()))
                  122. 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()))
                  124. Task.note
                  Definition

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

                  ShortComments made about the task
                  Control0..*
                  TypeAnnotation
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  126. 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()))
                  128. 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()))
                  130. 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
                  132. 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())
                  134. 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())
                  136. 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()))
                  138. 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()))
                  140. 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()))
                  142. 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()))
                  144. 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
                  146. 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())
                  148. 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())
                  150. 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()))
                  152. 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] NoteSee Choice of Data Types for 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()))
                  154. Task.output
                  Definition

                  Outputs produced by the Task.

                  ShortInformation produced as part of task
                  Control0..*
                  TypeBackboneElement
                  Is Modifierfalse
                  Must Supporttrue
                  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()))
                  156. 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
                  158. 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())
                  160. 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())
                  162. 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()))
                  164. Task.output.value[x]
                  Definition

                  The value of the Output parameter as a basic type.

                  ShortResult of output
                  Control1..1
                  TypeReference(BSeR Referral Feedback Document Bundle)
                  [x] NoteSee Choice of Data Types for further information about how to use [x]
                  Is Modifierfalse
                  Must Supporttrue
                  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()))