Prescription Search Support
1.0.0 - STU1 Belgium flag

This page is part of the eHealth FHIR PSS Profiles for Belgium (v1.0.0: Release) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Resource Profile: PSSQuestionnaireTask - Detailed Descriptions

Active as of 2025-05-14

Definitions for the PSSQuestionnaireTask 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.extension:rationale
Slice Namerationale
Definition

A clinician-friendly explanation for the recommendation; patient-friendly if the recommendation is patient-facing.

ShortCPG Rationale Extension
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(CPG Rationale Extension) (Extension Type: markdown)
Is Modifierfalse
Must Supporttrue
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. Task.extension:pertinent
Slice Namepertinent
Definition

The pertinent positive or negative information relevant to the recommendation.

ShortCPG Pertinent Extension
Comments

This will typically be the most relevant case features used in determining applicability, but could also be other patient-specific information relevant to interpreting or assessing appropriateness of the recommendation with respect to the patient.

Control0..*
This element is affected by the following invariants: ele-1
TypeExtension(CPG Pertinent Extension) (Extension Type: Reference)
Is Modifierfalse
Must Supporttrue
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
8. Task.extension:rating
Slice Namerating
Definition

A clinician-friendly rating, or score, for the recommendation; patient-friendly if the recommendation is patient-facing.

ShortCPG Rating Extension
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(CPG Rating Extension) (Extension Type: Choice of: Quantity, Range, Ratio)
Is Modifierfalse
Must Supporttrue
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
10. Task.modifierExtension
Definition

An Extension


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).

ShortExtensionExtensions 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())
SlicingThis element introduces a set of slices on Task.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 12. Task.modifierExtension:doNotPerform
    Slice NamedoNotPerform
    Definition

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

    Shorttrue if request is prohibiting action
    Comments

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

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

    Control0..1
    TypeExtension(Do not perform) (Extension Type: boolean)
    Is Modifiertrue because If true this element negates the specified action. For Example, instead of a request for a procedure, it is a request for the procedure to not occur.
    Must Supporttrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    14. 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()))
    16. Task.instantiatesCanonical
    Definition

    A link back to the definition that produced this recommendation. Typically a Plan or Activity 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.

    ShortSourceFormal definition of task
    Control0..1
    Typecanonical(ActivityDefinition)
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    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()))
    18. 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
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    20. 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()))
    22. 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()))
    24. Task.intent
    Definition

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

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

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

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

    Control1..1
    BindingThe codes SHALL be taken from TaskIntenthttp://hl7.org/fhir/ValueSet/task-intent|4.0.1
    (required to http://hl7.org/fhir/ValueSet/task-intent|4.0.1)

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

    Typecode
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    26. 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 RequestPriorityhttp://hl7.org/fhir/ValueSet/request-priority|4.0.1
    (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
    Must Supporttrue
    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()))
    28. Task.code
    Definition

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

    ShortTask Type
    Comments

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

    Control0..1
    BindingUnless not suitable, these codes SHALL be taken from For example codes, see CPG Activity Type Value Sethttp://hl7.org/fhir/ValueSet/task-code
    (extensible to http://hl7.org/fhir/uv/cpg/ValueSet/cpg-activity-type-vs)

    Activity types for use in computable guidelines


    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/uv/cpg/CodeSystem/cpg-activity-type-cs",
        "code" : "collect-information"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    30. Task.description
    Definition

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

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

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

    ShortBeneficiary of the Task
    Control0..1
    TypeReference(PSS anonymised Patient, 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()))
    34. Task.encounter
    Definition

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

    ShortHealthcare event during which this task originated
    Control0..1
    TypeReference(CPG Encounter, Encounter)
    Is Modifierfalse
    Must Supporttrue
    Summarytrue
    Requirements

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

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

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

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

    The date and time this task was created.

    ShortTask Creation Date
    Control0..1
    This element is affected by the following invariants: inv-1
    TypedateTime
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    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()))
    40. Task.input
    Definition

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

    ShortInformation used to perform task
    Control10..*
    TypeBackboneElement
    Is Modifierfalse
    Must Supporttrue
    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()))
    SlicingThis element introduces a set of slices on Task.input. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ type
    • 42. 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())
      44. 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()))
      46. Task.input.value[x]
      Definition

      The value of the input parameter as a basic type.

      ShortContent to use in performing the task
      Control1..1
      TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      48. Task.input:questionnaire
      Slice Namequestionnaire
      Definition

      The Questionnaire to be used to collect the information.


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

      ShortQuestionnaire to useInformation used to perform task
      Control10..1*
      TypeBackboneElement
      Is Modifierfalse
      Must Supporttrue
      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()))
      50. Task.input:questionnaire.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())
      52. Task.input:questionnaire.type
      Definition

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

      ShortLabel for the input
      Comments

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

      Control1..1
      Binding

      Codes to identify types of input parameters. These will typically be specific to a particular workflow. E.g. "Comparison source", "Applicable consent", "Concomitent Medications", etc.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Requirements

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

      Alternate NamesName
      Pattern Value{
        "coding" : [{
          "system" : "http://hl7.org/fhir/uv/cpg/CodeSystem/cpg-activity-type-cs",
          "code" : "collect-information"
        }]
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      54. Task.input:questionnaire.value[x]
      Definition

      The value of the input parameter as a basic type.

      ShortContent to use in performing the task
      Comments

      The canonical SHALL be a reference to at least a CPGComputableQuestionnaire.

      Control1..1
      Typecanonical(CPG Computable Questionnaire), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      56. 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()))
      SlicingThis element introduces a set of slices on Task.output. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ type
      • 58. 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())
        60. 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()))
        62. Task.output.value[x]
        Definition

        The value of the Output parameter as a basic type.

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

        Task outputs can take any form.

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

        The QuestionnaireResponse that is the result of completing the task.


        Outputs produced by the Task.

        ShortResponseInformation produced as part of task
        Control0..1*
        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()))
        66. Task.output:questionnaireResponse.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())
        68. Task.output:questionnaireResponse.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
        Must Supporttrue
        Summaryfalse
        Requirements

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

        Alternate NamesName
        Pattern Value{
          "coding" : [{
            "system" : "http://hl7.org/fhir/uv/cpg/CodeSystem/cpg-activity-type-cs",
            "code" : "collect-information"
          }]
        }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        70. Task.output:questionnaireResponse.value[x]
        Definition

        The value of the Output parameter as a basic type.

        ShortResult of output
        Control1..1
        TypeReference(CPG Questionnaire Response), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        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()))