Da Vinci Clinical Data Exchange (CDex)
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Da Vinci Clinical Data Exchange (CDex), published by HL7 International / Payer/Provider Information Exchange Work Group. This guide is not an authorized publication; it is the continuous build for version 2.1.0-preview built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-ecdx/ and changes regularly. See the Directory of published versions

Resource Profile: CDexTaskAttachmentRequest - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 2

Definitions for the cdex-task-attachment-request resource profile.

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

0. Task
Definition

This Task profile is used to request additional documentation ("attachments") for claims or prior authorizations.

Invariantscdex-1: The "service-date" input SHALL be present if the attachment is for a claim. (Task.reasonCode.coding.code.where($this='claim').exists() implies Task.input.type.coding.code.where($this='service-date').exists())
cdex-4: If code = "attachment-request-code", must have one or more "AttachmentsNeeded" inputs. (Task.code.coding.code.where($this='attachment-request-code').exists() implies Task.input.type.coding.code.where($this='attachments-needed').exists())
cdex-5: If code = "attachment-request-questionnaire", must have one or more "QuestionnairesNeeded" inputs. (Task.code.coding.code.where($this='attachment-request-questionnaire').exists() implies Task.input.type.coding.code.where($this='questionnaires-needed').exists())
cdex-6: Must have only "AttachmentsNeeded" or "QuestionnairesNeeded" inputs not both. (Task.input.type.coding.code.where($this='attachments-needed').exists() implies Task.input.type.coding.code.where($this='questionnaires-needed').empty())
cdex-10: If code = "attachment-request-questionnaire" and status = "completed", should have one or more "questionnaires-needed" outputs referencing the QuestionnaireResponse. ((Task.code.coding.code.where($this='attachment-request-questionnaire').exists() and Task.status.where($this='completed').exists()) implies Task.output.type.coding.code.where($this='questionnaires-needed').exists())
tdr-2: Task statusReason SHALL be populated if status is 'rejected' or 'failed' ((status = 'rejected' or status = 'failed') implies statusReason.exists())
2. Task.contained
Control2..?
Must Supporttrue
SlicingThis element introduces a set of slices on Task.contained. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
  • 4. Task.contained:practitionerrole
    Slice Namepractitionerrole
    Definition

    The contained practitionerrole profile communicates the provider ID as either a unique organization/location identifier (e.g., Type 2 NPI) or unique provider identifier (e.g., Type 1 NPI) or both.

    ShortContained PractitionerRole resource
    Control1..1
    TypePractitionerRole(CDex PractitionerRole Profile)
    Must Supporttrue
    6. Task.contained:patient
    Slice Namepatient
    Definition

    The contained patient profile represents the patient data elements used to verify patient identity.

    ShortContained Patient resource
    Control1..1
    TypePatient(CDex Patient Demographics Profile)
    Must Supporttrue
    8. Task.identifier
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control1..?
    Must Supporttrue
    SlicingThis element introduces a set of slices on Task.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • pattern @ $this
    • 10. Task.identifier:tracking-id
      Slice Nametracking-id
      Definition

      A unique claim/prior authorization identifier (referred to as the “re-association tracking control numbers”)

      ShortRe-association tracking control number
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control1..1
      Must Supporttrue
      Pattern Value{
        "type" : {
          "coding" : [{
            "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
            "code" : "tracking-id"
          }]
        }
      }
      12. Task.identifier:tracking-id.system
      Must Supporttrue
      14. Task.identifier:tracking-id.value
      Control1..?
      Must Supporttrue
      16. Task.status
      BindingThe codes SHALL be taken from HRex Task Status ValueSet
      (required to http://hl7.org/fhir/us/davinci-hrex/ValueSet/hrex-task-status)
      Must Supporttrue
      18. Task.statusReason
      Must Supporttrue
      Requirements

      Indicates why task failed or was rejected.

      20. Task.statusReason.text
      Control1..?
      Must Supporttrue
      22. Task.intent
      Must Supporttrue
      Fixed Valueorder
      24. Task.code
      Definition

      The code element is used to indicate the type of attachment request. The code element is a required element and must be populated with one of the following values: "attachment-request-code" or "attachment-request-questionnaire".

      Shortattachment-request-code | attachment-request-questionnaire
      Control1..?
      This element is affected by the following invariants: cdex-4, cdex-5, cdex-10
      BindingThe codes SHALL be taken from PAS Task Codes
      (required to http://hl7.org/fhir/us/davinci-pas/ValueSet/PASTaskCodes)
      Must Supporttrue
      26. Task.code.coding
      Control1..?
      Must Supporttrue
      28. Task.code.coding.system
      Must Supporttrue
      Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes
      30. Task.code.coding.code
      Control1..?
      Must Supporttrue
      32. Task.for
      Definition

      Reference to a contained Patient resource defined by the CDex Patient Demographics Profile. It represents the member who is subject of the claim or preauthorization and demographic data elements that are used by the Provider to verify member identity.

      ShortContained Patient.
      Control1..?
      TypeReference(CDex Patient Demographics Profile)contained
      Must Supporttrue
      34. Task.for.reference
      ShortContained resource reference
      Control1..?
      Must Supporttrue
      Fixed Value#patient
      36. Task.requester
      ShortPayer asking for attachments
      Control1..?
      TypeReference(HRex Organization Profile)
      Must Supporttrue
      38. Task.requester.identifier
      Definition

      business identifier representing the Payer ID

      ShortPayer ID
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control1..?
      Must Supporttrue
      40. Task.owner
      ShortProvider who submitted claim or preauthorization
      Comments

      The term "Provider" means a person or organization that provided the health care services to a patient.

      Control1..?
      TypeReference(CDex PractitionerRole Profile)contained
      Must Supporttrue
      42. Task.owner.reference
      ShortContained resource reference
      Control1..?
      Must Supporttrue
      Fixed Value#practitionerrole
      44. Task.reasonCode
      Control1..?
      Must Supporttrue
      46. Task.reasonCode.coding
      Control1..?
      This element is affected by the following invariants: cdex-1
      Must Supporttrue
      SlicingThis element introduces a set of slices on Task.reasonCode.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ $this
      • 48. Task.reasonCode.coding:use
        Slice Nameuse
        Control1..*
        BindingThe codes SHALL be taken from CDex Claim Use Value Set
        (required to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-claim-use)
        Must Supporttrue
        50. Task.reasonCode.coding:use.system
        Must Supporttrue
        52. Task.reasonCode.coding:use.code
        Shortclaim | preauthorization
        Control1..?
        Must Supporttrue
        54. Task.reasonCode.text
        Shortclaim | preauthorization
        BindingThe codes SHALL be taken from CDex Claim Use Value Set
        (required to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-claim-use)
        Must Supporttrue
        56. Task.reasonReference
        Control1..?
        Must Supporttrue
        58. Task.reasonReference.identifier
        Definition

        The business identifier representing the Claim or Prior Authorization ID

        ShortClaim or Prior Authorization ID
        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control1..?
        Must Supporttrue
        60. Task.restriction
        Control0..?
        Must Supporttrue
        62. Task.restriction.period
        Definition

        due date for the attachments

        ShortAttachments due date
        Control0..?
        Must Supporttrue
        64. Task.input
        Control2..?
        Must Supporttrue
        SlicingThis element introduces a set of slices on Task.input. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • pattern @ type
        • 66. Task.input:AttachmentsNeeded
          Slice NameAttachmentsNeeded
          Definition

          A code indicating the type of data/document to be returned

          ShortAttachment Code
          Comments

          This value set includes LOINC terms that can be sent by a payer as part of an HL7 attachment request for additional documentation. It has been curated by the HL7 Payer/Provider Information Exchange (PIE) Work Group. More information about using LOINC in HIPAA attachments and the source of this value set can be found at https://loinc.org/attachments. For prior authorization, X12 PWK01 Report Type Codes may also be used.

          BindingUnless not suitable, these codes SHALL be taken from CDex LOINC Attachment Codes Value Set
          (extensible to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-loinc-attachment-codes)
          Additional BindingsPurposeUsageDocumentation
          CDex PWK01 Attachment Report Type Code Value SetExtensible Bindingworkflow: A payer request for additional information from the provider to support a prior authorization request

          In addition to using LOINC attachment codes, a payer may request for additional information from the provider to support a prior authorization request using X12's PWK01 Attachment Report Type Code. Note that the PWK01 codes will not be published in this guide due to X12's IP restrictions.

          Must Supporttrue
          68. Task.input:AttachmentsNeeded.extension
          Control0..?
          Must Supporttrue
          70. Task.input:AttachmentsNeeded.extension.url
          Must Supporttrue
          Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-paLineNumber
          72. Task.input:AttachmentsNeeded.extension.value[x]
          Control1..?
          Typeinteger
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          74. Task.input:AttachmentsNeeded.type
          Must Supporttrue
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
              "code" : "attachments-needed"
            }]
          }
          76. Task.input:AttachmentsNeeded.value[x]
          ShortAttachment code value
          TypeCodeableConcept
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Must Supporttrue
          78. Task.input:QuestionnairesNeeded
          Slice NameQuestionnairesNeeded
          Definition

          Indicates the questionnaire to be completed.

          ShortData Request questionnaire
          80. Task.input:QuestionnairesNeeded.extension
          Control0..?
          Must Supporttrue
          82. Task.input:QuestionnairesNeeded.extension.url
          Must Supporttrue
          Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-paLineNumber
          84. Task.input:QuestionnairesNeeded.extension.value[x]
          Control1..?
          Typeinteger
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          86. Task.input:QuestionnairesNeeded.type
          Control1..1
          TypeCodeableConcept
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
              "code" : "questionnaires-needed"
            }]
          }
          88. Task.input:QuestionnairesNeeded.value[x]
          ShortURL
          Control1..1
          Typecanonical(DTR Standard Questionnaire, DTR Questionnaire for adaptive form)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          90. Task.input:QuestionnairesNeeded.value[x].extension:questionnaireDisplay
          Slice NamequestionnaireDisplay
          Comments

          This can be handy for commonly used questionnaires with a recognizable name.

          Control0..1
          TypeExtension(Display Name) (Extension Type: string)
          92. Task.input:PayerUrl
          Slice NamePayerUrl
          Definition

          The Payer Endpoint URL for submitting attachments using the $submit-attachment operation.

          ShortPayer Url
          Control1..1
          Must Supporttrue
          94. Task.input:PayerUrl.type
          Must Supporttrue
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
              "code" : "payer-url"
            }]
          }
          96. Task.input:PayerUrl.value[x]
          ShortPayer url value
          Typeurl
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          98. Task.input:service-date
          Slice Nameservice-date
          Definition

          Date of service or starting date of the service for the claim or prior authorization. This element SHALL be present and precise to the day if the attachment is for a claim. It is optional if the attachment is for prior authorization.

          ShortService Date
          Control0..1
          This element is affected by the following invariants: cdex-1
          Must Supporttrue
          100. Task.input:service-date.type
          Must Supporttrue
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
              "code" : "service-date"
            }]
          }
          102. Task.input:service-date.value[x]
          ShortService Date value
          Typedate
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Invariantscdex-2: Date must be to day. ($this.toString().length() = 10)
          104. Task.input:signature
          Slice Namesignature
          Definition

          Flag to indicate whether the requested data requires a signature.

          ShortSignature flag
          Control0..1
          Must Supporttrue
          106. Task.input:signature.type
          Must Supporttrue
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
              "code" : "signature-flag"
            }]
          }
          108. Task.input:signature.value[x]
          ShortSignature flag value
          Typeboolean
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          110. Task.input:POU
          Slice NamePOU
          Definition

          Represent the purpose of use for the requested data.

          ShortPurpose of use code'
          Control0..1
          112. Task.input:POU.type
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
              "code" : "purpose-of-use"
            }]
          }
          114. Task.input:POU.value[x]
          ShortPurpose of use value
          BindingUnless not suitable, these codes SHALL be taken from CDex Purpose of Use Value Set
          (extensible to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-POU)
          TypeCodeableConcept
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          116. Task.input:multiple-submits
          Slice Namemultiple-submits
          Definition

          Flag to indicate whether the requested data can be submitted in multiple submissions. The default meaning when this input is omitted is multiple-submits = "false" - all the requested data should be submitted in a single transaction.

          ShortMultiple submits flag
          Control0..1
          118. Task.input:multiple-submits.type
          Pattern Value{
            "coding" : [{
              "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
              "code" : "multiple-submits-flag"
            }]
          }
          120. Task.input:multiple-submits.value[x]
          ShortMultiple submits flag value
          Typeboolean
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          122. Task.output
          SlicingThis element introduces a set of slices on Task.output. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • pattern @ type
          • 124. Task.output:AttachmentsNeeded
            Slice NameAttachmentsNeeded
            Definition

            FHIR resource(s) representing the result(s) of the attachments request.

            ShortRequested attachments
            Comments

            Note that all returned attachments SHOULD comply with appropriate US-Core and/or Da Vinci profiles. The "questionnaire-response" output type is for a QuestionnaireResponse resulting from the request.

            126. Task.output:AttachmentsNeeded.type
            Pattern Value{
              "coding" : [{
                "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
                "code" : "attachments-needed"
              }]
            }
            128. Task.output:AttachmentsNeeded.value[x]
            ShortAttachmentsNeeded reference
            TypeReference
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            130. Task.output:QuestionnairesNeeded
            Slice NameQuestionnairesNeeded
            Definition

            Indicates the questionnaire QuestionnairesNeeded resulting from the request.

            Control0..1
            This element is affected by the following invariants: cdex-10
            132. Task.output:QuestionnairesNeeded.type
            TypeCodeableConcept
            Pattern Value{
              "coding" : [{
                "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
                "code" : "questionnaires-needed"
              }]
            }
            134. Task.output:QuestionnairesNeeded.value[x]
            ShortReference to the QuestionnaireResponse
            Control1..1
            TypeReference(SDC Questionnaire Response, Adaptive Questionnaire Response)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]

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

            0. Task
            Definition

            This Task profile is used to request additional documentation ("attachments") for claims or prior authorizations.


            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)
            cdex-1: The "service-date" input SHALL be present if the attachment is for a claim. (Task.reasonCode.coding.code.where($this='claim').exists() implies Task.input.type.coding.code.where($this='service-date').exists())
            cdex-4: If code = "attachment-request-code", must have one or more "AttachmentsNeeded" inputs. (Task.code.coding.code.where($this='attachment-request-code').exists() implies Task.input.type.coding.code.where($this='attachments-needed').exists())
            cdex-5: If code = "attachment-request-questionnaire", must have one or more "QuestionnairesNeeded" inputs. (Task.code.coding.code.where($this='attachment-request-questionnaire').exists() implies Task.input.type.coding.code.where($this='questionnaires-needed').exists())
            cdex-6: Must have only "AttachmentsNeeded" or "QuestionnairesNeeded" inputs not both. (Task.input.type.coding.code.where($this='attachments-needed').exists() implies Task.input.type.coding.code.where($this='questionnaires-needed').empty())
            cdex-10: If code = "attachment-request-questionnaire" and status = "completed", should have one or more "questionnaires-needed" outputs referencing the QuestionnaireResponse. ((Task.code.coding.code.where($this='attachment-request-questionnaire').exists() and Task.status.where($this='completed').exists()) implies Task.output.type.coding.code.where($this='questionnaires-needed').exists())
            tdr-2: Task statusReason SHALL be populated if status is 'rejected' or 'failed' ((status = 'rejected' or status = 'failed') implies statusReason.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.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.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.

            Control20..*
            TypeResource
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Alternate Namesinline resources, anonymous resources, contained resources
            SlicingThis element introduces a set of slices on Task.contained. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • type @ $this
            • 6. Task.contained:practitionerrole
              Slice Namepractitionerrole
              Definition

              The contained practitionerrole profile communicates the provider ID as either a unique organization/location identifier (e.g., Type 2 NPI) or unique provider identifier (e.g., Type 1 NPI) or both.


              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 PractitionerRole resourceContained, 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.

              Control10..1*
              TypePractitionerRoleResource(CDex PractitionerRole Profile)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Alternate Namesinline resources, anonymous resources, contained resources
              8. Task.contained:patient
              Slice Namepatient
              Definition

              The contained patient profile represents the patient data elements used to verify patient identity.


              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 Patient resourceContained, 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.

              Control10..1*
              TypePatientResource(CDex Patient Demographics Profile)
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Alternate NamesSubjectOfCare Client Resident, inline resources, anonymous resources, contained resources
              10. 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())
              12. Task.identifier
              Definition

              The business identifier for this task.

              ShortTask Instance Identifier
              NoteThis is a business identifier, not a resource identifier (see discussion)
              Control10..*
              TypeIdentifier
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              SlicingThis element introduces a set of slices on Task.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • pattern @ $this
              • 14. Task.identifier:tracking-id
                Slice Nametracking-id
                Definition

                A unique claim/prior authorization identifier (referred to as the “re-association tracking control numbers”)


                The business identifier for this task.

                ShortRe-association tracking control numberTask Instance Identifier
                NoteThis is a business identifier, not a resource identifier (see discussion)
                Control10..1*
                TypeIdentifier
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Pattern Value{
                  "type" : {
                    "coding" : [{
                      "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
                      "code" : "tracking-id"
                    }]
                  }
                }
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                16. Task.identifier:tracking-id.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()))
                18. Task.identifier:tracking-id.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
                Must Supporttrue
                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()))
                20. Task.identifier:tracking-id.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()))
                22. Task.status
                Definition

                The current status of the task.

                Shortdraft | requested | received | accepted | +
                Control1..1
                This element is affected by the following invariants: cdex-10, tdr-2
                BindingThe codes SHALL be taken from HRex Task Status ValueSethttp://hl7.org/fhir/ValueSet/task-status|4.0.1
                (required to http://hl7.org/fhir/us/davinci-hrex/ValueSet/hrex-task-status)
                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()))
                24. 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
                This element is affected by the following invariants: tdr-2
                Binding

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

                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Requirements

                Indicates why task failed or was rejected.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                26. 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()))
                28. 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
                Fixed Valueorder
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                30. Task.code
                Definition

                The code element is used to indicate the type of attachment request. The code element is a required element and must be populated with one of the following values: "attachment-request-code" or "attachment-request-questionnaire".


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

                Shortattachment-request-code | attachment-request-questionnaireTask Type
                Comments

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

                Control10..1
                This element is affected by the following invariants: cdex-4, cdex-5, cdex-10
                BindingThe codes SHALL be taken from For example codes, see PAS Task Codeshttp://hl7.org/fhir/ValueSet/task-code
                (required to http://hl7.org/fhir/us/davinci-pas/ValueSet/PASTaskCodes)
                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                32. Task.code.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.

                Control10..*
                TypeCoding
                Is Modifierfalse
                Must Supporttrue
                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()))
                34. Task.code.coding.system
                Definition

                The identification of the code system that defines the meaning of the symbol in the code.

                ShortIdentity of the terminology system
                Comments

                The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

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

                Need to be unambiguous about the source of the definition of the symbol.

                Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                36. Task.code.coding.code
                Definition

                A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                ShortSymbol in syntax defined by the system
                Control10..1
                Typecode
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summarytrue
                Requirements

                Need to refer to a particular code in the system.

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

                Reference to a contained Patient resource defined by the CDex Patient Demographics Profile. It represents the member who is subject of the claim or preauthorization and demographic data elements that are used by the Provider to verify member identity.


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

                ShortContained Patient.Beneficiary of the Task
                Control10..1
                TypeReference(CDex Patient Demographics Profile, Resource)contained
                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()))
                40. Task.for.reference
                Definition

                A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                ShortContained resource referenceLiteral reference, Relative, internal or absolute URL
                Comments

                Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                Control10..1
                This element is affected by the following invariants: ref-1
                Typestring
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summarytrue
                Fixed Value#patient
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                42. Task.requester
                Definition

                The creator of the task.

                ShortPayer asking for attachmentsWho is asking for task to be done
                Control10..1
                TypeReference(HRex Organization Profile, Device, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson)
                Is Modifierfalse
                Must Supporttrue
                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()))
                44. Task.requester.identifier
                Definition

                business identifier representing the Payer ID


                An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                ShortPayer IDLogical reference, when literal reference is not known
                Comments

                When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                NoteThis is a business identifier, not a resource identifier (see discussion)
                Control10..1
                TypeIdentifier
                Is Modifierfalse
                Must Supporttrue
                Summarytrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                46. Task.owner
                Definition

                Individual organization or Device currently responsible for task execution.

                ShortProvider who submitted claim or preauthorizationResponsible individual
                Comments

                The term "Provider" means a person or organization that provided the health care services to a patient.


                Tasks may be created with an owner not yet identified.

                Control10..1
                TypeReference(CDex PractitionerRole Profile, Practitioner, PractitionerRole, Organization, CareTeam, HealthcareService, Patient, Device, RelatedPerson)contained
                Is Modifierfalse
                Must Supporttrue
                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()))
                48. Task.owner.reference
                Definition

                A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                ShortContained resource referenceLiteral reference, Relative, internal or absolute URL
                Comments

                Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                Control10..1
                This element is affected by the following invariants: ref-1
                Typestring
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                Summarytrue
                Fixed Value#practitionerrole
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                50. 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.

                Control10..1
                Binding

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

                TypeCodeableConcept
                Is Modifierfalse
                Must Supporttrue
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                52. Task.reasonCode.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.

                Control10..*
                This element is affected by the following invariants: cdex-1
                TypeCoding
                Is Modifierfalse
                Must Supporttrue
                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()))
                SlicingThis element introduces a set of slices on Task.reasonCode.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ $this
                • 54. Task.reasonCode.coding:use
                  Slice Nameuse
                  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.

                  Control10..*
                  BindingThe codes SHALL be taken from For codes, see CDex Claim Use Value Set
                  (required to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-claim-use)
                  TypeCoding
                  Is Modifierfalse
                  Must Supporttrue
                  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()))
                  56. Task.reasonCode.coding:use.system
                  Definition

                  The identification of the code system that defines the meaning of the symbol in the code.

                  ShortIdentity of the terminology system
                  Comments

                  The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

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

                  Need to be unambiguous about the source of the definition of the symbol.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  58. Task.reasonCode.coding:use.code
                  Definition

                  A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                  Shortclaim | preauthorizationSymbol in syntax defined by the system
                  Control10..1
                  Typecode
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summarytrue
                  Requirements

                  Need to refer to a particular code in the system.

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

                  Shortclaim | preauthorizationPlain text representation of the concept
                  Comments

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

                  Control0..1
                  BindingThe codes SHALL be taken from For codes, see CDex Claim Use Value Set
                  (required to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-claim-use)
                  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()))
                  62. 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.

                  Control10..1
                  TypeReference(Resource)
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  64. Task.reasonReference.identifier
                  Definition

                  The business identifier representing the Claim or Prior Authorization ID


                  An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                  ShortClaim or Prior Authorization IDLogical reference, when literal reference is not known
                  Comments

                  When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                  When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                  Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                  Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Control10..1
                  TypeIdentifier
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  66. 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
                  Must Supporttrue
                  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()))
                  68. 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())
                  70. Task.restriction.period
                  Definition

                  due date for the attachments


                  Over what time-period is fulfillment sought.

                  ShortAttachments due dateWhen 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
                  Must Supporttrue
                  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()))
                  72. Task.input
                  Definition

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

                  ShortInformation used to perform task
                  Control20..*
                  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:
                  • pattern @ type
                  • 74. 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())
                    76. 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()))
                    78. 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()))
                    80. Task.input:AttachmentsNeeded
                    Slice NameAttachmentsNeeded
                    Definition

                    A code indicating the type of data/document to be returned


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

                    ShortAttachment CodeInformation used to perform task
                    Comments

                    This value set includes LOINC terms that can be sent by a payer as part of an HL7 attachment request for additional documentation. It has been curated by the HL7 Payer/Provider Information Exchange (PIE) Work Group. More information about using LOINC in HIPAA attachments and the source of this value set can be found at https://loinc.org/attachments. For prior authorization, X12 PWK01 Report Type Codes may also be used.

                    Control0..*
                    This element is affected by the following invariants: cdex-4, cdex-6
                    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()))
                    82. Task.input:AttachmentsNeeded.extension
                    Definition

                    An Extension


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

                    ShortExtensionAdditional content defined by implementations
                    Comments

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

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Must Supporttrue
                    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())
                    84. Task.input:AttachmentsNeeded.extension.url
                    Definition

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

                    Shortidentifies the meaning of the extension
                    Comments

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

                    Control1..1
                    Typeuri
                    Is Modifierfalse
                    Must Supporttrue
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-paLineNumber
                    86. Task.input:AttachmentsNeeded.extension.value[x]
                    Definition

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

                    ShortValue of extension
                    Control10..1
                    Typeinteger, date, Meta, Address, Attachment, 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, 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()))
                    88. Task.input:AttachmentsNeeded.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())
                    90. Task.input:AttachmentsNeeded.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/us/davinci-pas/CodeSystem/PASTempCodes",
                        "code" : "attachments-needed"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    92. Task.input:AttachmentsNeeded.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortAttachment code valueContent to use in performing the task
                    Control1..1
                    TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, 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
                    Must Supporttrue
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    94. Task.input:QuestionnairesNeeded
                    Slice NameQuestionnairesNeeded
                    Definition

                    Indicates the questionnaire to be completed.


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

                    ShortData Request questionnaireInformation used to perform task
                    Control0..*
                    This element is affected by the following invariants: cdex-5, cdex-6
                    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()))
                    96. Task.input:QuestionnairesNeeded.extension
                    Definition

                    An Extension


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

                    ShortExtensionAdditional content defined by implementations
                    Comments

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

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Must Supporttrue
                    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())
                    98. Task.input:QuestionnairesNeeded.extension.url
                    Definition

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

                    Shortidentifies the meaning of the extension
                    Comments

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

                    Control1..1
                    Typeuri
                    Is Modifierfalse
                    Must Supporttrue
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-paLineNumber
                    100. Task.input:QuestionnairesNeeded.extension.value[x]
                    Definition

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

                    ShortValue of extension
                    Control10..1
                    Typeinteger, date, Meta, Address, Attachment, 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, 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()))
                    102. Task.input:QuestionnairesNeeded.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())
                    104. Task.input:QuestionnairesNeeded.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
                    Pattern Value{
                      "coding" : [{
                        "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
                        "code" : "questionnaires-needed"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    106. Task.input:QuestionnairesNeeded.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortURLContent to use in performing the task
                    Control1..1
                    Typecanonical(DTR Standard Questionnaire, DTR Questionnaire for adaptive form), 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
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    108. Task.input:QuestionnairesNeeded.value[x].extension:questionnaireDisplay
                    Slice NamequestionnaireDisplay
                    Definition

                    The title or other name to display when referencing a resource by canonical URL.

                    ShortDisplay name for canonical reference
                    Comments

                    This can be handy for commonly used questionnaires with a recognizable name.

                    Control0..1
                    TypeExtension(Display Name) (Extension Type: string)
                    Is Modifierfalse
                    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())
                    110. Task.input:PayerUrl
                    Slice NamePayerUrl
                    Definition

                    The Payer Endpoint URL for submitting attachments using the $submit-attachment operation.


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

                    ShortPayer UrlInformation 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()))
                    112. Task.input:PayerUrl.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())
                    114. Task.input:PayerUrl.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/us/davinci-pas/CodeSystem/PASTempCodes",
                        "code" : "payer-url"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    116. Task.input:PayerUrl.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortPayer url valueContent to use in performing the task
                    Control1..1
                    Typeurl, 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, Reference, TriggerDefinition, Quantity, uri, 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()))
                    118. Task.input:service-date
                    Slice Nameservice-date
                    Definition

                    Date of service or starting date of the service for the claim or prior authorization. This element SHALL be present and precise to the day if the attachment is for a claim. It is optional if the attachment is for prior authorization.


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

                    ShortService DateInformation used to perform task
                    Control0..1*
                    This element is affected by the following invariants: cdex-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()))
                    120. Task.input:service-date.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())
                    122. Task.input:service-date.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/us/davinci-cdex/CodeSystem/cdex-temp",
                        "code" : "service-date"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    124. Task.input:service-date.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortService Date valueContent to use in performing the task
                    Control1..1
                    This element is affected by the following invariants: cdex-2
                    Typedate, 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, 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()))
                    cdex-2: Date must be to day. ($this.toString().length() = 10)
                    126. Task.input:signature
                    Slice Namesignature
                    Definition

                    Flag to indicate whether the requested data requires a signature.


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

                    ShortSignature flagInformation used to perform task
                    Control0..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()))
                    128. Task.input:signature.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())
                    130. Task.input:signature.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/us/davinci-cdex/CodeSystem/cdex-temp",
                        "code" : "signature-flag"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    132. Task.input:signature.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortSignature flag valueContent to use in performing the task
                    Control1..1
                    Typeboolean, 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, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, 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()))
                    134. Task.input:POU
                    Slice NamePOU
                    Definition

                    Represent the purpose of use for the requested data.


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

                    ShortPurpose of use code'Information used to perform task
                    Control0..1*
                    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()))
                    136. Task.input:POU.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())
                    138. Task.input:POU.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
                    Pattern Value{
                      "coding" : [{
                        "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
                        "code" : "purpose-of-use"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    140. Task.input:POU.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortPurpose of use valueContent to use in performing the task
                    Control1..1
                    BindingUnless not suitable, these codes SHALL be taken from For codes, see CDex Purpose of Use Value Set
                    (extensible to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-POU)
                    TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, 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
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    142. Task.input:multiple-submits
                    Slice Namemultiple-submits
                    Definition

                    Flag to indicate whether the requested data can be submitted in multiple submissions. The default meaning when this input is omitted is multiple-submits = "false" - all the requested data should be submitted in a single transaction.


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

                    ShortMultiple submits flagInformation used to perform task
                    Control0..1*
                    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:multiple-submits.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())
                    146. Task.input:multiple-submits.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
                    Pattern Value{
                      "coding" : [{
                        "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
                        "code" : "multiple-submits-flag"
                      }]
                    }
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    148. Task.input:multiple-submits.value[x]
                    Definition

                    The value of the input parameter as a basic type.

                    ShortMultiple submits flag valueContent to use in performing the task
                    Control1..1
                    Typeboolean, 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, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, 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
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    150. Task.output
                    Definition

                    Outputs produced by the Task.

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

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

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    SlicingThis element introduces a set of slices on Task.output. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • pattern @ type
                    • 152. 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())
                      154. 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()))
                      156. 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()))
                      158. Task.output:AttachmentsNeeded
                      Slice NameAttachmentsNeeded
                      Definition

                      FHIR resource(s) representing the result(s) of the attachments request.


                      Outputs produced by the Task.

                      ShortRequested attachmentsInformation produced as part of task
                      Comments

                      Note that all returned attachments SHOULD comply with appropriate US-Core and/or Da Vinci profiles. The "questionnaire-response" output type is for a QuestionnaireResponse resulting from the request.

                      Control0..*
                      TypeBackboneElement
                      Is Modifierfalse
                      Summaryfalse
                      Requirements

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

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      160. Task.output:AttachmentsNeeded.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:AttachmentsNeeded.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
                      Pattern Value{
                        "coding" : [{
                          "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
                          "code" : "attachments-needed"
                        }]
                      }
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      164. Task.output:AttachmentsNeeded.value[x]
                      Definition

                      The value of the Output parameter as a basic type.

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

                      Task outputs can take any form.

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

                      Indicates the questionnaire QuestionnairesNeeded resulting from the request.


                      Outputs produced by the Task.

                      ShortInformation produced as part of task
                      Control0..1*
                      This element is affected by the following invariants: cdex-10
                      TypeBackboneElement
                      Is Modifierfalse
                      Summaryfalse
                      Requirements

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

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      168. Task.output:QuestionnairesNeeded.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())
                      170. Task.output:QuestionnairesNeeded.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
                      Pattern Value{
                        "coding" : [{
                          "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
                          "code" : "questionnaires-needed"
                        }]
                      }
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      172. Task.output:QuestionnairesNeeded.value[x]
                      Definition

                      The value of the Output parameter as a basic type.

                      ShortReference to the QuestionnaireResponseResult of output
                      Control1..1
                      TypeReference(SDC Questionnaire Response, Adaptive 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
                      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

                      This Task profile is used to request additional documentation ("attachments") for claims or prior authorizations.

                      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)
                      cdex-1: The "service-date" input SHALL be present if the attachment is for a claim. (Task.reasonCode.coding.code.where($this='claim').exists() implies Task.input.type.coding.code.where($this='service-date').exists())
                      cdex-4: If code = "attachment-request-code", must have one or more "AttachmentsNeeded" inputs. (Task.code.coding.code.where($this='attachment-request-code').exists() implies Task.input.type.coding.code.where($this='attachments-needed').exists())
                      cdex-5: If code = "attachment-request-questionnaire", must have one or more "QuestionnairesNeeded" inputs. (Task.code.coding.code.where($this='attachment-request-questionnaire').exists() implies Task.input.type.coding.code.where($this='questionnaires-needed').exists())
                      cdex-6: Must have only "AttachmentsNeeded" or "QuestionnairesNeeded" inputs not both. (Task.input.type.coding.code.where($this='attachments-needed').exists() implies Task.input.type.coding.code.where($this='questionnaires-needed').empty())
                      cdex-10: If code = "attachment-request-questionnaire" and status = "completed", should have one or more "questionnaires-needed" outputs referencing the QuestionnaireResponse. ((Task.code.coding.code.where($this='attachment-request-questionnaire').exists() and Task.status.where($this='completed').exists()) implies Task.output.type.coding.code.where($this='questionnaires-needed').exists())
                      tdr-2: Task statusReason SHALL be populated if status is 'rejected' or 'failed' ((status = 'rejected' or status = 'failed') implies statusReason.exists())
                      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.

                      Control2..*
                      TypeResource
                      Is Modifierfalse
                      Must Supporttrue
                      Summaryfalse
                      Alternate Namesinline resources, anonymous resources, contained resources
                      SlicingThis element introduces a set of slices on Task.contained. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • type @ $this
                      • 14. Task.contained:practitionerrole
                        Slice Namepractitionerrole
                        Definition

                        The contained practitionerrole profile communicates the provider ID as either a unique organization/location identifier (e.g., Type 2 NPI) or unique provider identifier (e.g., Type 1 NPI) or both.

                        ShortContained PractitionerRole resource
                        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.

                        Control1..1
                        TypePractitionerRole(CDex PractitionerRole Profile)
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        16. Task.contained:patient
                        Slice Namepatient
                        Definition

                        The contained patient profile represents the patient data elements used to verify patient identity.

                        ShortContained Patient resource
                        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.

                        Control1..1
                        TypePatient(CDex Patient Demographics Profile)
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Alternate NamesSubjectOfCare Client Resident
                        18. 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())
                        20. 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())
                        22. Task.identifier
                        Definition

                        The business identifier for this task.

                        ShortTask Instance Identifier
                        NoteThis is a business identifier, not a resource identifier (see discussion)
                        Control1..*
                        TypeIdentifier
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        SlicingThis element introduces a set of slices on Task.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • pattern @ $this
                        • 24. Task.identifier:tracking-id
                          Slice Nametracking-id
                          Definition

                          A unique claim/prior authorization identifier (referred to as the “re-association tracking control numbers”)

                          ShortRe-association tracking control number
                          NoteThis is a business identifier, not a resource identifier (see discussion)
                          Control1..1
                          TypeIdentifier
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Pattern Value{
                            "type" : {
                              "coding" : [{
                                "system" : "http://hl7.org/fhir/us/davinci-cdex/CodeSystem/cdex-temp",
                                "code" : "tracking-id"
                              }]
                            }
                          }
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          26. Task.identifier:tracking-id.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
                          28. Task.identifier:tracking-id.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 areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 30. Task.identifier:tracking-id.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()))
                            32. Task.identifier:tracking-id.type
                            Definition

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

                            ShortDescription of identifier
                            Comments

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

                            Control0..1
                            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
                            Summarytrue
                            Requirements

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

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            34. Task.identifier:tracking-id.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
                            Must Supporttrue
                            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()))
                            36. Task.identifier:tracking-id.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()))
                            38. Task.identifier:tracking-id.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()))
                            40. Task.identifier:tracking-id.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(Organization)
                            Is Modifierfalse
                            Summarytrue
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            42. 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()))
                            44. 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()))
                            46. 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()))
                            48. 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()))
                            50. Task.partOf
                            Definition

                            Task that this particular task is part of.

                            ShortComposite task
                            Comments

                            This should usually be 0..1.

                            Control0..*
                            TypeReference(Task)
                            Is Modifierfalse
                            Summarytrue
                            Requirements

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

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

                            The current status of the task.

                            Shortdraft | requested | received | accepted | +
                            Control1..1
                            This element is affected by the following invariants: cdex-10, tdr-2
                            BindingThe codes SHALL be taken from HRex Task Status ValueSet
                            (required to http://hl7.org/fhir/us/davinci-hrex/ValueSet/hrex-task-status)
                            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()))
                            54. 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
                            This element is affected by the following invariants: tdr-2
                            Binding

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

                            TypeCodeableConcept
                            Is Modifierfalse
                            Must Supporttrue
                            Summarytrue
                            Requirements

                            Indicates why task failed or was rejected.

                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            56. 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
                            58. 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 areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 60. 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()))
                              62. 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()))
                              64. Task.businessStatus
                              Definition

                              Contains business-specific nuances of the business state.

                              ShortE.g. "Specimen collected", "IV prepped"
                              Control0..1
                              Binding

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

                              TypeCodeableConcept
                              Is Modifierfalse
                              Summarytrue
                              Requirements

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

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

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

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

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

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

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

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

                              Typecode
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Must Supporttrue
                              Summarytrue
                              Fixed Valueorder
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              68. 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()))
                              70. Task.code
                              Definition

                              The code element is used to indicate the type of attachment request. The code element is a required element and must be populated with one of the following values: "attachment-request-code" or "attachment-request-questionnaire".

                              Shortattachment-request-code | attachment-request-questionnaire
                              Comments

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

                              Control1..1
                              This element is affected by the following invariants: cdex-4, cdex-5, cdex-10
                              BindingThe codes SHALL be taken from PAS Task Codes
                              (required to http://hl7.org/fhir/us/davinci-pas/ValueSet/PASTaskCodes)
                              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.code.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.code.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.code.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 76. Task.code.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.

                                Control1..*
                                TypeCoding
                                Is Modifierfalse
                                Must Supporttrue
                                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.code.coding.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
                                80. Task.code.coding.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.code.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 82. Task.code.coding.system
                                  Definition

                                  The identification of the code system that defines the meaning of the symbol in the code.

                                  ShortIdentity of the terminology system
                                  Comments

                                  The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

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

                                  Need to be unambiguous about the source of the definition of the symbol.

                                  Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  84. Task.code.coding.version
                                  Definition

                                  The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                  ShortVersion of the system - if relevant
                                  Comments

                                  Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                  NoteThis is a business version Id, not a resource version Id (see discussion)
                                  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()))
                                  86. Task.code.coding.code
                                  Definition

                                  A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                  ShortSymbol in syntax defined by the system
                                  Control1..1
                                  Typecode
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Must Supporttrue
                                  Summarytrue
                                  Requirements

                                  Need to refer to a particular code in the system.

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

                                  A representation of the meaning of the code in the system, following the rules of the system.

                                  ShortRepresentation defined by the system
                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summarytrue
                                  Requirements

                                  Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

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

                                  Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                  ShortIf this coding was chosen directly by the user
                                  Comments

                                  Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

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

                                  This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  92. Task.code.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
                                  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()))
                                  94. 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()))
                                  96. Task.focus
                                  Definition

                                  The request being actioned or the resource being manipulated by this task.

                                  ShortWhat task is acting on
                                  Comments

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

                                  Control0..1
                                  TypeReference(Resource)
                                  Is Modifierfalse
                                  Summarytrue
                                  Requirements

                                  Used to identify the thing to be done.

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

                                  Reference to a contained Patient resource defined by the CDex Patient Demographics Profile. It represents the member who is subject of the claim or preauthorization and demographic data elements that are used by the Provider to verify member identity.

                                  ShortContained Patient.
                                  Control1..1
                                  TypeReference(CDex Patient Demographics Profile)contained
                                  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()))
                                  100. Task.for.id
                                  Definition

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

                                  ShortUnique id for inter-element referencing
                                  Control0..1
                                  Typestring
                                  Is Modifierfalse
                                  XML FormatIn the XML format, this property is represented as an attribute.
                                  Summaryfalse
                                  102. Task.for.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.for.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 104. Task.for.reference
                                    Definition

                                    A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                    ShortContained resource reference
                                    Comments

                                    Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                    Control1..1
                                    This element is affected by the following invariants: ref-1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summarytrue
                                    Fixed Value#patient
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    106. Task.for.type
                                    Definition

                                    The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                    The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                    ShortType the reference refers to (e.g. "Patient")
                                    Comments

                                    This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                    Control0..1
                                    BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                    (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                    Aa resource (or, for logical models, the URI of the logical model).

                                    Typeuri
                                    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()))
                                    108. Task.for.identifier
                                    Definition

                                    An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                    ShortLogical reference, when literal reference is not known
                                    Comments

                                    When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                    When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                    Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                    Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                    NoteThis is a business identifier, not a resource identifier (see discussion)
                                    Control0..1
                                    TypeIdentifier
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    110. Task.for.display
                                    Definition

                                    Plain text narrative that identifies the resource in addition to the resource reference.

                                    ShortText alternative for the resource
                                    Comments

                                    This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                    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()))
                                    112. 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()))
                                    114. 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()))
                                    116. Task.authoredOn
                                    Definition

                                    The date and time this task was created.

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

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

                                    Alternate NamesCreated Date
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    118. 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()))
                                    120. Task.requester
                                    Definition

                                    The creator of the task.

                                    ShortPayer asking for attachments
                                    Control1..1
                                    TypeReference(HRex Organization Profile)
                                    Is Modifierfalse
                                    Must Supporttrue
                                    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()))
                                    122. Task.requester.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
                                    124. Task.requester.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.requester.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 126. Task.requester.reference
                                      Definition

                                      A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                      ShortLiteral reference, Relative, internal or absolute URL
                                      Comments

                                      Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                      Control0..1
                                      This element is affected by the following invariants: ref-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()))
                                      128. Task.requester.type
                                      Definition

                                      The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                      The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                      ShortType the reference refers to (e.g. "Patient")
                                      Comments

                                      This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                      Control0..1
                                      BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                      (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                      Aa resource (or, for logical models, the URI of the logical model).

                                      Typeuri
                                      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()))
                                      130. Task.requester.identifier
                                      Definition

                                      business identifier representing the Payer ID

                                      ShortPayer ID
                                      Comments

                                      When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                      When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                      Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                      Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                      NoteThis is a business identifier, not a resource identifier (see discussion)
                                      Control1..1
                                      TypeIdentifier
                                      Is Modifierfalse
                                      Must Supporttrue
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      132. Task.requester.display
                                      Definition

                                      Plain text narrative that identifies the resource in addition to the resource reference.

                                      ShortText alternative for the resource
                                      Comments

                                      This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                      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()))
                                      134. 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()))
                                      136. Task.owner
                                      Definition

                                      Individual organization or Device currently responsible for task execution.

                                      ShortProvider who submitted claim or preauthorization
                                      Comments

                                      The term "Provider" means a person or organization that provided the health care services to a patient.

                                      Control1..1
                                      TypeReference(CDex PractitionerRole Profile)contained
                                      Is Modifierfalse
                                      Must Supporttrue
                                      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()))
                                      138. Task.owner.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
                                      140. Task.owner.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.owner.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                      • value @ url
                                      • 142. Task.owner.reference
                                        Definition

                                        A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                        ShortContained resource reference
                                        Comments

                                        Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                        Control1..1
                                        This element is affected by the following invariants: ref-1
                                        Typestring
                                        Is Modifierfalse
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Must Supporttrue
                                        Summarytrue
                                        Fixed Value#practitionerrole
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        144. Task.owner.type
                                        Definition

                                        The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                        The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                        ShortType the reference refers to (e.g. "Patient")
                                        Comments

                                        This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                        Control0..1
                                        BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                        (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                        Aa resource (or, for logical models, the URI of the logical model).

                                        Typeuri
                                        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()))
                                        146. Task.owner.identifier
                                        Definition

                                        An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

                                        ShortLogical reference, when literal reference is not known
                                        Comments

                                        When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                        When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                        Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                        Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                        NoteThis is a business identifier, not a resource identifier (see discussion)
                                        Control0..1
                                        TypeIdentifier
                                        Is Modifierfalse
                                        Summarytrue
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        148. Task.owner.display
                                        Definition

                                        Plain text narrative that identifies the resource in addition to the resource reference.

                                        ShortText alternative for the resource
                                        Comments

                                        This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                        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()))
                                        150. 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()))
                                        152. 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.

                                        Control1..1
                                        Binding

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

                                        TypeCodeableConcept
                                        Is Modifierfalse
                                        Must Supporttrue
                                        Summaryfalse
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        154. Task.reasonCode.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
                                        156. Task.reasonCode.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.reasonCode.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 158. Task.reasonCode.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.

                                          Control1..*
                                          This element is affected by the following invariants: cdex-1
                                          TypeCoding
                                          Is Modifierfalse
                                          Must Supporttrue
                                          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()))
                                          SlicingThis element introduces a set of slices on Task.reasonCode.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                          • value @ $this
                                          • 160. Task.reasonCode.coding:use
                                            Slice Nameuse
                                            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.

                                            Control1..*
                                            BindingThe codes SHALL be taken from CDex Claim Use Value Set
                                            (required to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-claim-use)
                                            TypeCoding
                                            Is Modifierfalse
                                            Must Supporttrue
                                            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()))
                                            162. Task.reasonCode.coding:use.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
                                            164. Task.reasonCode.coding:use.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.reasonCode.coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                            • value @ url
                                            • 166. Task.reasonCode.coding:use.system
                                              Definition

                                              The identification of the code system that defines the meaning of the symbol in the code.

                                              ShortIdentity of the terminology system
                                              Comments

                                              The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

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

                                              Need to be unambiguous about the source of the definition of the symbol.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              168. Task.reasonCode.coding:use.version
                                              Definition

                                              The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                              ShortVersion of the system - if relevant
                                              Comments

                                              Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                              NoteThis is a business version Id, not a resource version Id (see discussion)
                                              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()))
                                              170. Task.reasonCode.coding:use.code
                                              Definition

                                              A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

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

                                              Need to refer to a particular code in the system.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              172. Task.reasonCode.coding:use.display
                                              Definition

                                              A representation of the meaning of the code in the system, following the rules of the system.

                                              ShortRepresentation defined by the system
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summarytrue
                                              Requirements

                                              Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              174. Task.reasonCode.coding:use.userSelected
                                              Definition

                                              Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                              ShortIf this coding was chosen directly by the user
                                              Comments

                                              Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

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

                                              This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

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

                                              Shortclaim | preauthorization
                                              Comments

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

                                              Control0..1
                                              BindingThe codes SHALL be taken from CDex Claim Use Value Set
                                              (required to http://hl7.org/fhir/us/davinci-cdex/ValueSet/cdex-claim-use)
                                              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()))
                                              178. 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.

                                              Control1..1
                                              TypeReference(Resource)
                                              Is Modifierfalse
                                              Must Supporttrue
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              180. Task.reasonReference.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
                                              182. Task.reasonReference.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.reasonReference.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                              • value @ url
                                              • 184. Task.reasonReference.reference
                                                Definition

                                                A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

                                                ShortLiteral reference, Relative, internal or absolute URL
                                                Comments

                                                Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

                                                Control0..1
                                                This element is affected by the following invariants: ref-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()))
                                                186. Task.reasonReference.type
                                                Definition

                                                The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

                                                The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

                                                ShortType the reference refers to (e.g. "Patient")
                                                Comments

                                                This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

                                                Control0..1
                                                BindingUnless not suitable, these codes SHALL be taken from ResourceType
                                                (extensible to http://hl7.org/fhir/ValueSet/resource-types)

                                                Aa resource (or, for logical models, the URI of the logical model).

                                                Typeuri
                                                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()))
                                                188. Task.reasonReference.identifier
                                                Definition

                                                The business identifier representing the Claim or Prior Authorization ID

                                                ShortClaim or Prior Authorization ID
                                                Comments

                                                When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

                                                When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

                                                Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

                                                Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

                                                NoteThis is a business identifier, not a resource identifier (see discussion)
                                                Control1..1
                                                TypeIdentifier
                                                Is Modifierfalse
                                                Must Supporttrue
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                190. Task.reasonReference.display
                                                Definition

                                                Plain text narrative that identifies the resource in addition to the resource reference.

                                                ShortText alternative for the resource
                                                Comments

                                                This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

                                                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()))
                                                192. 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()))
                                                194. Task.note
                                                Definition

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

                                                ShortComments made about the task
                                                Control0..*
                                                TypeAnnotation
                                                Is Modifierfalse
                                                Summaryfalse
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                196. 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()))
                                                198. 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
                                                Must Supporttrue
                                                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()))
                                                200. 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
                                                202. 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())
                                                204. 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())
                                                206. 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()))
                                                208. Task.restriction.period
                                                Definition

                                                due date for the attachments

                                                ShortAttachments due date
                                                Comments

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

                                                Control0..1
                                                TypePeriod
                                                Is Modifierfalse
                                                Must Supporttrue
                                                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()))
                                                210. 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()))
                                                212. Task.input
                                                Definition

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

                                                ShortInformation used to perform task
                                                Control2..*
                                                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:
                                                • pattern @ type
                                                • 214. 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
                                                  216. 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())
                                                  218. 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())
                                                  220. 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()))
                                                  222. 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()))
                                                  224. Task.input:AttachmentsNeeded
                                                  Slice NameAttachmentsNeeded
                                                  Definition

                                                  A code indicating the type of data/document to be returned

                                                  ShortAttachment Code
                                                  Comments

                                                  This value set includes LOINC terms that can be sent by a payer as part of an HL7 attachment request for additional documentation. It has been curated by the HL7 Payer/Provider Information Exchange (PIE) Work Group. More information about using LOINC in HIPAA attachments and the source of this value set can be found at https://loinc.org/attachments. For prior authorization, X12 PWK01 Report Type Codes may also be used.

                                                  Control0..*
                                                  This element is affected by the following invariants: cdex-4, cdex-6
                                                  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()))
                                                  226. Task.input:AttachmentsNeeded.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
                                                  228. Task.input:AttachmentsNeeded.extension
                                                  Definition

                                                  An Extension

                                                  ShortExtension
                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifierfalse
                                                  Must Supporttrue
                                                  Summaryfalse
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                  230. Task.input:AttachmentsNeeded.extension.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
                                                  232. Task.input:AttachmentsNeeded.extension.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.input.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                  • value @ url
                                                  • 234. Task.input:AttachmentsNeeded.extension.url
                                                    Definition

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

                                                    Shortidentifies the meaning of the extension
                                                    Comments

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

                                                    Control1..1
                                                    Typeuri
                                                    Is Modifierfalse
                                                    Must Supporttrue
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-paLineNumber
                                                    236. Task.input:AttachmentsNeeded.extension.value[x]
                                                    Definition

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

                                                    ShortValue of extension
                                                    Control1..1
                                                    Typeinteger
                                                    [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()))
                                                    238. Task.input:AttachmentsNeeded.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())
                                                    240. Task.input:AttachmentsNeeded.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/us/davinci-pas/CodeSystem/PASTempCodes",
                                                        "code" : "attachments-needed"
                                                      }]
                                                    }
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    242. Task.input:AttachmentsNeeded.value[x]
                                                    Definition

                                                    The value of the input parameter as a basic type.

                                                    ShortAttachment code value
                                                    Control1..1
                                                    TypeCodeableConcept
                                                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                    Is Modifierfalse
                                                    Must Supporttrue
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    244. Task.input:QuestionnairesNeeded
                                                    Slice NameQuestionnairesNeeded
                                                    Definition

                                                    Indicates the questionnaire to be completed.

                                                    ShortData Request questionnaire
                                                    Control0..*
                                                    This element is affected by the following invariants: cdex-5, cdex-6
                                                    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()))
                                                    246. Task.input:QuestionnairesNeeded.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
                                                    248. Task.input:QuestionnairesNeeded.extension
                                                    Definition

                                                    An Extension

                                                    ShortExtension
                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Must Supporttrue
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    250. Task.input:QuestionnairesNeeded.extension.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
                                                    252. Task.input:QuestionnairesNeeded.extension.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.input.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                    • value @ url
                                                    • 254. Task.input:QuestionnairesNeeded.extension.url
                                                      Definition

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

                                                      Shortidentifies the meaning of the extension
                                                      Comments

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

                                                      Control1..1
                                                      Typeuri
                                                      Is Modifierfalse
                                                      Must Supporttrue
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      Fixed Valuehttp://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-paLineNumber
                                                      256. Task.input:QuestionnairesNeeded.extension.value[x]
                                                      Definition

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

                                                      ShortValue of extension
                                                      Control1..1
                                                      Typeinteger
                                                      [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()))
                                                      258. Task.input:QuestionnairesNeeded.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())
                                                      260. Task.input:QuestionnairesNeeded.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
                                                      Pattern Value{
                                                        "coding" : [{
                                                          "system" : "http://hl7.org/fhir/us/davinci-pas/CodeSystem/PASTempCodes",
                                                          "code" : "questionnaires-needed"
                                                        }]
                                                      }
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      262. Task.input:QuestionnairesNeeded.value[x]
                                                      Definition

                                                      The value of the input parameter as a basic type.

                                                      ShortURL
                                                      Control1..1
                                                      Typecanonical(DTR Standard Questionnaire, DTR Questionnaire for adaptive form)
                                                      [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()))
                                                      264. Task.input:QuestionnairesNeeded.value[x].id
                                                      Definition

                                                      unique id for the element within a resource (for internal references)

                                                      Shortxml:id (or equivalent in JSON)
                                                      Control0..1
                                                      Typestring
                                                      Is Modifierfalse
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      266. Task.input:QuestionnairesNeeded.value[x].extension
                                                      Definition

                                                      An Extension

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

                                                        The title or other name to display when referencing a resource by canonical URL.

                                                        ShortDisplay name for canonical reference
                                                        Comments

                                                        This can be handy for commonly used questionnaires with a recognizable name.

                                                        Control0..1
                                                        TypeExtension(Display Name) (Extension Type: string)
                                                        Is Modifierfalse
                                                        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())
                                                        270. Task.input:QuestionnairesNeeded.value[x].value
                                                        Definition

                                                        Primitive value for canonical

                                                        ShortPrimitive value for canonical
                                                        Control0..1
                                                        Typestring
                                                        Is Modifierfalse
                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                        Summaryfalse
                                                        272. Task.input:PayerUrl
                                                        Slice NamePayerUrl
                                                        Definition

                                                        The Payer Endpoint URL for submitting attachments using the $submit-attachment operation.

                                                        ShortPayer Url
                                                        Control1..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()))
                                                        274. Task.input:PayerUrl.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
                                                        276. Task.input:PayerUrl.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())
                                                        278. Task.input:PayerUrl.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())
                                                        280. Task.input:PayerUrl.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/us/davinci-pas/CodeSystem/PASTempCodes",
                                                            "code" : "payer-url"
                                                          }]
                                                        }
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        282. Task.input:PayerUrl.value[x]
                                                        Definition

                                                        The value of the input parameter as a basic type.

                                                        ShortPayer url value
                                                        Control1..1
                                                        Typeurl
                                                        [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()))
                                                        284. Task.input:service-date
                                                        Slice Nameservice-date
                                                        Definition

                                                        Date of service or starting date of the service for the claim or prior authorization. This element SHALL be present and precise to the day if the attachment is for a claim. It is optional if the attachment is for prior authorization.

                                                        ShortService Date
                                                        Control0..1
                                                        This element is affected by the following invariants: cdex-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()))
                                                        286. Task.input:service-date.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
                                                        288. Task.input:service-date.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())
                                                        290. Task.input:service-date.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())
                                                        292. Task.input:service-date.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/us/davinci-cdex/CodeSystem/cdex-temp",
                                                            "code" : "service-date"
                                                          }]
                                                        }
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        294. Task.input:service-date.value[x]
                                                        Definition

                                                        The value of the input parameter as a basic type.

                                                        ShortService Date value
                                                        Control1..1
                                                        This element is affected by the following invariants: cdex-2
                                                        Typedate
                                                        [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()))
                                                        cdex-2: Date must be to day. ($this.toString().length() = 10)
                                                        296. Task.input:signature
                                                        Slice Namesignature
                                                        Definition

                                                        Flag to indicate whether the requested data requires a signature.

                                                        ShortSignature flag
                                                        Control0..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()))
                                                        298. Task.input:signature.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
                                                        300. Task.input:signature.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())
                                                        302. Task.input:signature.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())
                                                        304. Task.input:signature.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/us/davinci-cdex/CodeSystem/cdex-temp",
                                                            "code" : "signature-flag"
                                                          }]
                                                        }
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        306. Task.input:signature.value[x]
                                                        Definition

                                                        The value of the input parameter as a basic type.

                                                        ShortSignature flag value
                                                        Control1..1
                                                        Typeboolean
                                                        [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()))
                                                        308. Task.input:POU