Patient Cost Transparency Implementation Guide
2.0.0-ballot - STU 2 Ballot United States of America flag

Patient Cost Transparency Implementation Guide, published by HL7 International / Financial Management. This guide is not an authorized publication; it is the continuous build for version 2.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-pct/ and changes regularly. See the Directory of published versions

Resource Profile: PCTGFEContributorTask - Detailed Descriptions

Page standards status: Draft Maturity Level: 0

Definitions for the davinci-pct-gfe-contributor-task resource profile.

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

0. Task
2. Task.extension
Control1..?
SlicingThis element introduces a set of slices on Task.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Task.extension:requested-period
    Slice Namerequested-period
    ShortGFE Contributor specific time period the requested GFE should be provided in
    Comments

    Indicates the start and/or end of the period of time when the GFE bundle should be provided. Usually this is the same as the GFE Coordination Task, and if so, should not be specified in the provider specific task. However, there may be circumstances in which a specific GFE contributor may have a different timeline that should be included in the provider specific task (e.g. the provider was added to original request afterwards, in the case of a provider replacement; or there is a potential dependency on the provider's response).

    Control0..1
    TypeExtension(Extension Definition for Task.requestedPeriod for Version 5.0) (Extension Type: Period)
    Must Supporttrue
    6. Task.extension:requested-period.value[x]
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    8. Task.extension:requested-period.value[x].start
    Control0..0
    10. Task.extension:requested-period.value[x].end
    Control1..?
    12. Task.extension:request-initiation-time
    Slice Namerequest-initiation-time
    ShortInstant from which the request is being initiated. For patient initiated requests, this is the date and time the patient or their representative made the request. For a newly scheduled service, this represents the time of the scheduling activity (as opposed to the planned time of service). For all other requests, the time of the event that triggered the need for an estimate.
    Control1..1
    TypeExtension(Request Initiation Time) (Extension Type: instant)
    Must Supporttrue
    14. Task.extension:planned-service-period
    Slice Nameplanned-service-period
    ShortGFE contributor specific planned or scheduled period of service the request is about
    Control0..1
    TypeExtension(Planned Service Period) (Extension Type: Period)
    Must Supporttrue
    16. Task.identifier
    NoteThis is a business identifier, not a resource identifier (see discussion)
    SlicingThis element introduces a set of slices on Task.identifier. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • pattern @ type
    • 18. Task.identifier:PLAC
      Slice NamePLAC
      ShortGFE Coordination Requester Assigned Identifier for GFE Request
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..1
      20. Task.identifier:PLAC.type
      Control1..?
      Pattern Value{
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
          "code" : "PLAC",
          "display" : "Placer Identifier"
        }]
      }
      22. Task.identifier:PLAC.system
      Must Supporttrue
      24. Task.identifier:PLAC.value
      Control1..?
      26. Task.identifier:INTER
      Slice NameINTER
      ShortIntermediary System Identifier
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..*
      28. Task.identifier:INTER.type
      Control1..?
      Pattern Value{
        "coding" : [{
          "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTIdentifierType",
          "code" : "INTER",
          "display" : "Intermediary System Identifier"
        }]
      }
      30. Task.partOf
      ShortReference to the GFE Coordination Task
      Control1..1
      TypeReference(PCT GFE Coordination Task)
      32. Task.status
      BindingThe codes SHALL be taken from Provider GFE Contributor Task Status Codes
      (required to http://hl7.org/fhir/us/davinci-pct/ValueSet/PCTContributorTaskStatusCodes)
      34. Task.statusReason
      BindingUnless not suitable, these codes SHALL be taken from PCT GFE Contributor Task Status Reason Codes ValueSet
      (extensible to http://hl7.org/fhir/us/davinci-pct/ValueSet/PCTContributorTaskStatusReasonCodes)
      Must Supporttrue
      36. Task.intent
      Pattern Valueorder
      38. Task.code
      Pattern Value{
        "coding" : [{
          "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTGFERequestTaskCSTemporaryTrialUse",
          "code" : "gfe-contributor-task"
        }]
      }
      40. Task.requester
      ShortThe provider making the request
      Comments

      Generally this will be a reference to a Practitioner, PractitionerRole, or Organization resource residing on the Coordination Platform. If there is a need to express contact information that is specific to the request, and therefore is not included in the information on the Coordination Platform, the reference should point to a server and resource that does not have additional authentication or or authorization requirements.

      TypeReference(PCT Practitioner, HRex PractitionerRole Profile, PCT Organization)
      42. Task.performerType
      ShortSpecific performer types for the
      Must Supporttrue
      44. Task.owner
      ShortGFE Contributor assigned to complete the task
      Control1..?
      TypeReference(PCT Practitioner, HRex PractitionerRole Profile, PCT Organization)
      46. Task.reasonCode
      ShortThe reasonCode is inherited from the GFE Coordination Task pointed to by Task.partOf
      Control0..0
      48. Task.restriction
      Control0..0
      50. Task.input
      ShortGFE Contributor specific Information and references to service and supporting information, such as Conditions, Observations, and notes
      Comments

      Contained or referenced request information bundle made available to a specific GFE contributor that includes information about the products and or services requested and other supporting information, such as Conditions, Observations, and notes

      Must Supporttrue
      52. Task.output
      ShortAny outputs from the GFE Contributor including the GFE Bundle or notes on why the specific task was unable to be completed
      Comments

      Any outputs for the GFE Contributor Task which might include notes on why the GFE Contributor Task was unable to be completed.

      Must Supporttrue

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

      0. Task
      Definition

      A task to be performed.

      ShortA task to be performed
      Control0..*
      Is Modifierfalse
      Summaryfalse
      Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
      dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
      dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
      dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
      dom-6: A resource should have narrative for robust management (text.`div`.exists())
      inv-1: Last modified date must be greater than or equal to authored-on date. (lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn)
      inv-1: Last modified date must be greater than or equal to authored-on date. (lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn)
      2. Task.implicitRules
      Definition

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

      ShortA set of rules under which this content was created
      Comments

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

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

      An Extension


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

      ShortExtensionAdditional content defined by implementations
      Comments

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

      Control10..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on Task.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 6. Task.extension:requested-period
        Slice Namerequested-period
        Definition

        Optional Extension Element - found in all resources.

        ShortGFE Contributor specific time period the requested GFE should be provided in
        Comments

        Indicates the start and/or end of the period of time when the GFE bundle should be provided. Usually this is the same as the GFE Coordination Task, and if so, should not be specified in the provider specific task. However, there may be circumstances in which a specific GFE contributor may have a different timeline that should be included in the provider specific task (e.g. the provider was added to original request afterwards, in the case of a provider replacement; or there is a potential dependency on the provider's response).

        Control0..1
        This element is affected by the following invariants: ele-1
        TypeExtension(Extension Definition for Task.requestedPeriod for Version 5.0) (Extension Type: Period)
        Is Modifierfalse
        Must Supporttrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        8. Task.extension:requested-period.extension
        Definition

        An Extension


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

        ShortExtensionAdditional content defined by implementations
        Comments

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

        Control0..0*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on Task.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 10. Task.extension:requested-period.url
          Definition

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

          Shortidentifies the meaning of the extension
          Comments

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

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-Task.requestedPeriod
          12. Task.extension:requested-period.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
          TypePeriod, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, 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
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          14. Task.extension:requested-period.value[x].start
          Definition

          The start of the period. The boundary is inclusive.

          ShortStarting time with inclusive boundary
          Comments

          If the low element is missing, the meaning is that the low boundary is not known.

          Control0..01
          This element is affected by the following invariants: per-1
          TypedateTime
          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()))
          16. Task.extension:requested-period.value[x].end
          Definition

          The end of the period. If the end of the period is missing, it means no end was known or planned at the time the instance was created. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time.

          ShortEnd time with inclusive boundary, if not ongoing
          Comments

          The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has an end value of 2012-02-03.

          Control10..1
          This element is affected by the following invariants: per-1
          TypedateTime
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Meaning if MissingIf the end of the period is missing, it means that the period is ongoing
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          18. Task.extension:request-initiation-time
          Slice Namerequest-initiation-time
          Definition

          Instant from which the request is being initiated.

          ShortInstant from which the request is being initiated. For patient initiated requests, this is the date and time the patient or their representative made the request. For a newly scheduled service, this represents the time of the scheduling activity (as opposed to the planned time of service). For all other requests, the time of the event that triggered the need for an estimate.
          Control1..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Request Initiation Time) (Extension Type: instant)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          20. Task.extension:planned-service-period
          Slice Nameplanned-service-period
          Definition

          Planned period of service the request is about

          ShortGFE contributor specific planned or scheduled period of service the request is about
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Planned Service Period) (Extension Type: Period)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          22. 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())
          24. Task.identifier
          Definition

          The business identifier for this task.

          ShortTask Instance Identifier
          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..*
          TypeIdentifier
          Is Modifierfalse
          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 @ type
          • 26. Task.identifier:PLAC
            Slice NamePLAC
            Definition

            The business identifier for this task.

            ShortGFE Coordination Requester Assigned Identifier for GFE RequestTask Instance Identifier
            NoteThis is a business identifier, not a resource identifier (see discussion)
            Control0..1*
            TypeIdentifier
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            28. Task.identifier:PLAC.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()))
            30. Task.identifier:PLAC.type
            Definition

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

            ShortDescription of identifier
            Comments

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

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

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

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Requirements

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

            Pattern Value{
              "coding" : [{
                "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
                "code" : "PLAC",
                "display" : "Placer Identifier"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            32. Task.identifier:PLAC.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()))
            34. Task.identifier:PLAC.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
            Summarytrue
            Example<br/><b>General</b>:123456
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            36. Task.identifier:INTER
            Slice NameINTER
            Definition

            The business identifier for this task.

            ShortIntermediary System IdentifierTask Instance Identifier
            NoteThis is a business identifier, not a resource identifier (see discussion)
            Control0..*
            TypeIdentifier
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            38. Task.identifier:INTER.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()))
            40. Task.identifier:INTER.type
            Definition

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

            ShortDescription of identifier
            Comments

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

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

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

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Requirements

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

            Pattern Value{
              "coding" : [{
                "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTIdentifierType",
                "code" : "INTER",
                "display" : "Intermediary System Identifier"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            42. Task.partOf
            Definition

            Task that this particular task is part of.

            ShortReference to the GFE Coordination TaskComposite task
            Comments

            This should usually be 0..1.

            Control10..1*
            TypeReference(PCT GFE Coordination Task, 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()))
            44. Task.status
            Definition

            The current status of the task.

            Shortdraft | requested | received | accepted | +
            Control1..1
            BindingThe codes SHALL be taken from Provider GFE Contributor Task Status Codeshttp://hl7.org/fhir/ValueSet/task-status|4.0.1
            (required to http://hl7.org/fhir/us/davinci-pct/ValueSet/PCTContributorTaskStatusCodes)
            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
            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()))
            46. 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
            BindingUnless not suitable, these codes SHALL be taken from For example codes, see PCT GFE Contributor Task Status Reason Codes ValueSet
            (extensible to http://hl7.org/fhir/us/davinci-pct/ValueSet/PCTContributorTaskStatusReasonCodes)
            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            48. Task.intent
            Definition

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

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

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

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

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

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

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

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

            ShortTask Type
            Comments

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

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

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

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Pattern Value{
              "coding" : [{
                "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTGFERequestTaskCSTemporaryTrialUse",
                "code" : "gfe-contributor-task"
              }]
            }
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            52. Task.requester
            Definition

            The creator of the task.

            ShortThe provider making the requestWho is asking for task to be done
            Comments

            Generally this will be a reference to a Practitioner, PractitionerRole, or Organization resource residing on the Coordination Platform. If there is a need to express contact information that is specific to the request, and therefore is not included in the information on the Coordination Platform, the reference should point to a server and resource that does not have additional authentication or or authorization requirements.

            Control0..1
            TypeReference(PCT Practitioner, HRex PractitionerRole Profile, PCT Organization, Device, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson)
            Is Modifierfalse
            Summarytrue
            Requirements

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

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

            The kind of participant that should perform the task.

            ShortSpecific performer types for theRequested performer
            Control0..*
            BindingThe codes SHOULD be taken from ProcedurePerformerRoleCodeshttp://hl7.org/fhir/ValueSet/performer-role
            (preferred to http://hl7.org/fhir/ValueSet/performer-role)

            The type(s) of task performers allowed.

            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            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()))
            56. Task.owner
            Definition

            Individual organization or Device currently responsible for task execution.

            ShortGFE Contributor assigned to complete the taskResponsible individual
            Comments

            Tasks may be created with an owner not yet identified.

            Control10..1
            TypeReference(PCT Practitioner, HRex PractitionerRole Profile, PCT Organization, Practitioner, PractitionerRole, Organization, CareTeam, HealthcareService, Patient, Device, RelatedPerson)
            Is Modifierfalse
            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()))
            58. Task.reasonCode
            Definition

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

            ShortThe reasonCode is inherited from the GFE Coordination Task pointed to by Task.partOfWhy task is needed
            Comments

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

            Control0..01
            Binding

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

            TypeCodeableConcept
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            60. 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..01
            TypeBackboneElement
            Is Modifierfalse
            Summaryfalse
            Requirements

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

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

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

            ShortGFE Contributor specific Information and references to service and supporting information, such as Conditions, Observations, and notesInformation used to perform task
            Comments

            Contained or referenced request information bundle made available to a specific GFE contributor that includes information about the products and or services requested and other supporting information, such as Conditions, Observations, and notes

            Control0..*
            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()))
            65. 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())
            67. 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()))
            69. 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()))
            71. Task.output
            Definition

            Outputs produced by the Task.

            ShortAny outputs from the GFE Contributor including the GFE Bundle or notes on why the specific task was unable to be completedInformation produced as part of task
            Comments

            Any outputs for the GFE Contributor Task which might include notes on why the GFE Contributor Task was unable to be completed.

            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Requirements

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

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            73. 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())
            75. 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()))
            77. 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()))

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

            0. Task
            Definition

            A task to be performed.

            ShortA task to be performed
            Control0..*
            Is Modifierfalse
            Summaryfalse
            Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
            dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
            dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
            dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
            dom-6: A resource should have narrative for robust management (text.`div`.exists())
            inv-1: Last modified date must be greater than or equal to authored-on date. (lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn)
            2. Task.id
            Definition

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

            ShortLogical id of this artifact
            Comments

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

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

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

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

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

            ShortA set of rules under which this content was created
            Comments

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

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

            The base language in which the resource is written.

            ShortLanguage of the resource content
            Comments

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

            Control0..1
            BindingThe codes SHOULD be taken from CommonLanguages
            (preferred to http://hl7.org/fhir/ValueSet/languages)

            A human language.

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

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

            ShortText summary of the resource, for human interpretation
            Comments

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

            Control0..1
            TypeNarrative
            Is Modifierfalse
            Summaryfalse
            Alternate Namesnarrative, html, xhtml, display
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            12. Task.contained
            Definition

            These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

            ShortContained, inline Resources
            Comments

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

            Control0..*
            TypeResource
            Is Modifierfalse
            Summaryfalse
            Alternate Namesinline resources, anonymous resources, contained resources
            14. Task.extension
            Definition

            An Extension

            ShortExtension
            Control1..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            SlicingThis element introduces a set of slices on Task.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 16. Task.extension:requested-period
              Slice Namerequested-period
              Definition

              Optional Extension Element - found in all resources.

              ShortGFE Contributor specific time period the requested GFE should be provided in
              Comments

              Indicates the start and/or end of the period of time when the GFE bundle should be provided. Usually this is the same as the GFE Coordination Task, and if so, should not be specified in the provider specific task. However, there may be circumstances in which a specific GFE contributor may have a different timeline that should be included in the provider specific task (e.g. the provider was added to original request afterwards, in the case of a provider replacement; or there is a potential dependency on the provider's response).

              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(Extension Definition for Task.requestedPeriod for Version 5.0) (Extension Type: Period)
              Is Modifierfalse
              Must Supporttrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              18. Task.extension:requested-period.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
              20. Task.extension:requested-period.extension
              Definition

              An Extension

              ShortExtension
              Control0..0
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on Task.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 22. Task.extension:requested-period.url
                Definition

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

                Shortidentifies the meaning of the extension
                Comments

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

                Control1..1
                Typeuri
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-Task.requestedPeriod
                24. Task.extension:requested-period.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
                TypePeriod
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                26. Task.extension:requested-period.value[x].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.extension:requested-period.value[x].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.extension.value[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 30. Task.extension:requested-period.value[x].start
                  Definition

                  The start of the period. The boundary is inclusive.

                  ShortStarting time with inclusive boundary
                  Comments

                  If the low element is missing, the meaning is that the low boundary is not known.

                  Control0..0
                  This element is affected by the following invariants: per-1
                  TypedateTime
                  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()))
                  32. Task.extension:requested-period.value[x].end
                  Definition

                  The end of the period. If the end of the period is missing, it means no end was known or planned at the time the instance was created. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time.

                  ShortEnd time with inclusive boundary, if not ongoing
                  Comments

                  The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has an end value of 2012-02-03.

                  Control1..1
                  This element is affected by the following invariants: per-1
                  TypedateTime
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summarytrue
                  Meaning if MissingIf the end of the period is missing, it means that the period is ongoing
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  34. Task.extension:request-initiation-time
                  Slice Namerequest-initiation-time
                  Definition

                  Instant from which the request is being initiated.

                  ShortInstant from which the request is being initiated. For patient initiated requests, this is the date and time the patient or their representative made the request. For a newly scheduled service, this represents the time of the scheduling activity (as opposed to the planned time of service). For all other requests, the time of the event that triggered the need for an estimate.
                  Control1..1
                  This element is affected by the following invariants: ele-1
                  TypeExtension(Request Initiation Time) (Extension Type: instant)
                  Is Modifierfalse
                  Must Supporttrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  36. Task.extension:planned-service-period
                  Slice Nameplanned-service-period
                  Definition

                  Planned period of service the request is about

                  ShortGFE contributor specific planned or scheduled period of service the request is about
                  Control0..1
                  This element is affected by the following invariants: ele-1
                  TypeExtension(Planned Service Period) (Extension Type: Period)
                  Is Modifierfalse
                  Must Supporttrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  38. 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())
                  40. Task.identifier
                  Definition

                  The business identifier for this task.

                  ShortTask Instance Identifier
                  NoteThis is a business identifier, not a resource identifier (see discussion)
                  Control0..*
                  TypeIdentifier
                  Is Modifierfalse
                  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 @ type
                  • 42. Task.identifier:PLAC
                    Slice NamePLAC
                    Definition

                    The business identifier for this task.

                    ShortGFE Coordination Requester Assigned Identifier for GFE Request
                    NoteThis is a business identifier, not a resource identifier (see discussion)
                    Control0..1
                    TypeIdentifier
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    44. Task.identifier:PLAC.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
                    46. Task.identifier:PLAC.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
                    • 48. Task.identifier:PLAC.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()))
                      50. Task.identifier:PLAC.type
                      Definition

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

                      ShortDescription of identifier
                      Comments

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

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

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

                      TypeCodeableConcept
                      Is Modifierfalse
                      Summarytrue
                      Requirements

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

                      Pattern Value{
                        "coding" : [{
                          "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
                          "code" : "PLAC",
                          "display" : "Placer Identifier"
                        }]
                      }
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      52. Task.identifier:PLAC.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()))
                      54. Task.identifier:PLAC.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
                      Summarytrue
                      Example<br/><b>General</b>:123456
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      56. Task.identifier:PLAC.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()))
                      58. Task.identifier:PLAC.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()))
                      60. Task.identifier:INTER
                      Slice NameINTER
                      Definition

                      The business identifier for this task.

                      ShortIntermediary System Identifier
                      NoteThis is a business identifier, not a resource identifier (see discussion)
                      Control0..*
                      TypeIdentifier
                      Is Modifierfalse
                      Summaryfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      62. Task.identifier:INTER.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
                      64. Task.identifier:INTER.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
                      • 66. Task.identifier:INTER.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()))
                        68. Task.identifier:INTER.type
                        Definition

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

                        ShortDescription of identifier
                        Comments

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

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

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

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summarytrue
                        Requirements

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

                        Pattern Value{
                          "coding" : [{
                            "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTIdentifierType",
                            "code" : "INTER",
                            "display" : "Intermediary System Identifier"
                          }]
                        }
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        70. Task.identifier:INTER.system
                        Definition

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

                        ShortThe namespace for the identifier value
                        Comments

                        Identifier.system is always case sensitive.

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

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

                        Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        72. Task.identifier:INTER.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.

                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Example<br/><b>General</b>:123456
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        74. Task.identifier:INTER.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()))
                        76. Task.identifier:INTER.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()))
                        78. 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()))
                        80. 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()))
                        82. 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()))
                        84. 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()))
                        86. Task.partOf
                        Definition

                        Task that this particular task is part of.

                        ShortReference to the GFE Coordination Task
                        Comments

                        This should usually be 0..1.

                        Control1..1
                        TypeReference(PCT GFE Coordination 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()))
                        88. Task.status
                        Definition

                        The current status of the task.

                        Shortdraft | requested | received | accepted | +
                        Control1..1
                        BindingThe codes SHALL be taken from Provider GFE Contributor Task Status Codes
                        (required to http://hl7.org/fhir/us/davinci-pct/ValueSet/PCTContributorTaskStatusCodes)
                        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
                        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()))
                        90. 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
                        BindingUnless not suitable, these codes SHALL be taken from PCT GFE Contributor Task Status Reason Codes ValueSet
                        (extensible to http://hl7.org/fhir/us/davinci-pct/ValueSet/PCTContributorTaskStatusReasonCodes)
                        TypeCodeableConcept
                        Is Modifierfalse
                        Must Supporttrue
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        92. 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()))
                        94. Task.intent
                        Definition

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

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

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

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

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

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

                        Typecode
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summarytrue
                        Pattern Valueorder
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        96. 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()))
                        98. Task.code
                        Definition

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

                        ShortTask Type
                        Comments

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

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

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

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summarytrue
                        Pattern Value{
                          "coding" : [{
                            "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTGFERequestTaskCSTemporaryTrialUse",
                            "code" : "gfe-contributor-task"
                          }]
                        }
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        100. 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()))
                        102. 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()))
                        104. Task.for
                        Definition

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

                        ShortBeneficiary of the Task
                        Control0..1
                        TypeReference(Resource)
                        Is Modifierfalse
                        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()))
                        106. 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()))
                        108. 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()))
                        110. 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()))
                        112. 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()))
                        114. Task.requester
                        Definition

                        The creator of the task.

                        ShortThe provider making the request
                        Comments

                        Generally this will be a reference to a Practitioner, PractitionerRole, or Organization resource residing on the Coordination Platform. If there is a need to express contact information that is specific to the request, and therefore is not included in the information on the Coordination Platform, the reference should point to a server and resource that does not have additional authentication or or authorization requirements.

                        Control0..1
                        TypeReference(PCT Practitioner, HRex PractitionerRole Profile, PCT Organization)
                        Is Modifierfalse
                        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()))
                        116. Task.performerType
                        Definition

                        The kind of participant that should perform the task.

                        ShortSpecific performer types for the
                        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
                        Must Supporttrue
                        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()))
                        118. Task.owner
                        Definition

                        Individual organization or Device currently responsible for task execution.

                        ShortGFE Contributor assigned to complete the task
                        Comments

                        Tasks may be created with an owner not yet identified.

                        Control1..1
                        TypeReference(PCT Practitioner, HRex PractitionerRole Profile, PCT Organization)
                        Is Modifierfalse
                        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()))
                        120. 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()))
                        122. Task.reasonCode
                        Definition

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

                        ShortThe reasonCode is inherited from the GFE Coordination Task pointed to by Task.partOf
                        Comments

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

                        Control0..0
                        Binding

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

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

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

                        ShortWhy task is needed
                        Comments

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

                        Control0..1
                        TypeReference(Resource)
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        126. 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()))
                        128. 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()))
                        130. 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()))
                        132. 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..0
                        TypeBackboneElement
                        Is Modifierfalse
                        Summaryfalse
                        Requirements

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

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

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

                        ShortGFE Contributor specific Information and references to service and supporting information, such as Conditions, Observations, and notes
                        Comments

                        Contained or referenced request information bundle made available to a specific GFE contributor that includes information about the products and or services requested and other supporting information, such as Conditions, Observations, and notes

                        Control0..*
                        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()))
                        142. 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
                        144. 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())
                        146. 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())
                        148. 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()))
                        150. 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()))
                        152. Task.output
                        Definition

                        Outputs produced by the Task.

                        ShortAny outputs from the GFE Contributor including the GFE Bundle or notes on why the specific task was unable to be completed
                        Comments

                        Any outputs for the GFE Contributor Task which might include notes on why the GFE Contributor Task was unable to be completed.

                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Requirements

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

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

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

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        156. Task.output.extension
                        Definition

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

                        ShortAdditional content defined by implementations
                        Comments

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

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        158. 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())
                        160. 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()))
                        162. 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()))