Patient Cost Transparency Implementation Guide
2.0.0 - STU 2 - Draft 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 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: PCTGFEComposition - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 1

Definitions for the davinci-pct-gfe-composition resource profile.

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

0. Composition
Definition

A set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement. A Composition defines the structure and narrative content necessary for a document. However, a Composition alone does not constitute a document. Rather, the Composition must be the first entry in a Bundle where Bundle.type=document, and any other resources referenced from Composition must be included as subsequent entries in the Bundle (for example Patient, Practitioner, Encounter, etc.).

ShortA set of resources composed into a single coherent clinical statement with clinical attestation
Comments

While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical.

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())
pct-gfe-packet-composition-1: Scheduled service requests require a planned period of service (extension.where(url='http://hl7.org/fhir/us/davinci-pct/StructureDefinition/requestOriginationType' and value.ofType(CodeableConcept).coding.where(code='scheduled-request').exists()).exists() implies extension.where(url='http://hl7.org/fhir/us/davinci-pct/StructureDefinition/gfeServiceLinkingInfo' and extension.where(url = 'plannedPeriodOfService').exists()).exists())
2. Composition.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. Composition.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.

Control20..*
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 Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. Composition.extension:requestInitiationTime
    Slice NamerequestInitiationTime
    Definition

    Instant from which the request is being initiated.

    ShortEstimate Request instant (instance service was scheduled or estimate requested)
    Comments

    Instant 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
    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())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    8. Composition.extension:gfeServiceLinkingInfo
    Slice NamegfeServiceLinkingInfo
    Definition

    This extension is used to provide the GFE Service Linking Information. This allows implementers to have the same identifier on multiple GFEs that are part of one period of care's services. This would be needed for some of the workflow options that businesses may decide to use.

    ShortGFE Service Linking Information including planned period of service and a GFE linking identifier. Scheduled services SHALL have a plannedPeriodOfService valueDate or ValuePeriod
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(GFEServiceLinkingInfo) (Complex Extension)
    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())
    10. Composition.extension:requestOriginationType
    Slice NamerequestOriginationType
    Definition

    Indicator as to whether the request for estimate originated from a scheduled or unscheduled service.

    ShortIndicator as to whether the request for estimate originated from a scheduled or unscheduled service.
    Control1..1
    This element is affected by the following invariants: ele-1
    TypeExtension(RequestOriginationType) (Extension Type: CodeableConcept)
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    12. Composition.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())
    14. Composition.identifier
    Definition

    A version-independent identifier for the Composition. This identifier stays constant as the composition is changed over time.

    ShortVersion-independent identifier for the Composition
    Comments

    Similar to ClinicalDocument/setId in CDA. See discussion in resource definition for how these relate.

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

    The purpose of this identifier.

    Shortusual | official | temp | secondary | old (If known)
    Comments

    Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

    Control0..1
    BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
    (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

    Identifies the purpose for this identifier, if known .

    Typecode
    Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Requirements

    Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

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

    Control10..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.

    ExampleGeneral: http://www.acme.com/identifiers/patient
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    20. Composition.identifier.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
    ExampleGeneral: 123456
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    22. Composition.status
    Definition

    The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document.

    Shortpreliminary | final | amended | entered-in-error
    Comments

    If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag "entered-in-error" is why this element is labeled as a modifier of other elements.

    Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required.

    Control1..1
    BindingThe codes SHALL be taken from CompositionStatushttp://hl7.org/fhir/ValueSet/composition-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/composition-status|4.0.1)

    The workflow/clinical status of the composition.

    Typecode
    Is Modifiertrue because This element is labelled 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

    Need to be able to mark interim, amended, or withdrawn compositions or documents.

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

    Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition.

    ShortKind of composition (LOINC if possible)
    Comments

    For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding.

    Control1..1
    BindingThe codes SHOULD be taken from FHIRDocumentTypeCodeshttp://hl7.org/fhir/ValueSet/doc-typecodes
    (preferred to http://hl7.org/fhir/ValueSet/doc-typecodes)

    Type of a composition.

    TypeCodeableConcept
    Is Modifierfalse
    Summarytrue
    Requirements

    Key metadata element describing the composition, used in searching/filtering.

    Pattern Value{
      "coding" : [{
        "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentTypeTemporaryTrialUse",
        "code" : "gfe-packet"
      }]
    }
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    26. Composition.category
    Definition

    A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

    ShortCategorization of Composition
    Comments

    This is a metadata field from XDS/MHD.

    Control10..*
    BindingFor example codes, see DocumentClassValueSethttp://hl7.org/fhir/ValueSet/document-classcodes
    (example to http://hl7.org/fhir/ValueSet/document-classcodes)

    High-level kind of a clinical document at a macro level.

    TypeCodeableConcept
    Is Modifierfalse
    Summarytrue
    Requirements

    Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

    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 Composition.category. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ coding
    • 28. Composition.category:estimate
      Slice Nameestimate
      Definition

      A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

      ShortCategorization of Composition
      Comments

      This is a metadata field from XDS/MHD.

      Control10..1*
      BindingFor example codes, see DocumentClassValueSethttp://hl7.org/fhir/ValueSet/document-classcodes
      (example to http://hl7.org/fhir/ValueSet/document-classcodes)

      High-level kind of a clinical document at a macro level.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      30. Composition.category:estimate.coding
      Definition

      A reference to a code defined by a terminology system.

      ShortCode defined by a terminology system
      Comments

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

      Control10..*
      TypeCoding
      Is Modifierfalse
      Summarytrue
      Requirements

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

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      SlicingThis element introduces a set of slices on Composition.category.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ $this
      • 32. Composition.category:estimate.coding:estimate-coding
        Slice Nameestimate-coding
        Definition

        A reference to a code defined by a terminology system.

        ShortCode defined by a terminology system
        Comments

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

        Control10..1*
        TypeCoding
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Requirements

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

        Pattern Value{
          "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentTypeTemporaryTrialUse",
          "code" : "estimate"
        }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        34. Composition.subject
        Definition

        Who or what the composition is about. The composition can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of livestock, or a set of patients that share a common exposure).

        ShortWho and/or what the composition is about
        Comments

        For clinical documents, this is usually the patient.

        Control10..1
        TypeReference(US Core Patient Profile, Resource)
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Requirements

        Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about.

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

        The composition editing time, when the composition was last logically changed by the author.

        ShortComposition editing time
        Comments

        The Last Modified Date on the composition may be after the date of the document was attested without being changed.

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

        dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.


        dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        pct-datetime-to-seconds: Datetime must be at least to seconds. ($this is dateTime implies $this.toString().length() >= 19)
        38. Composition.author
        Definition

        Identifies who is responsible for the information in the composition, not necessarily who typed it in.

        ShortAll involved authoring parties, including all Good Faith Estimate (GFE) providersWho and/or what authored the composition
        Control1..*
        TypeReference(PCT Organization, PCT Practitioner, Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
        Is Modifierfalse
        Summarytrue
        Requirements

        Identifies who is responsible for the content.

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

        Official human-readable label for the composition.

        ShortHuman Readable name/title
        Comments

        For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a "consultation" or "progress note"). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period.

        Control1..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        42. Composition.relatesTo
        Definition

        Relationships that this composition has with other compositions or documents that already exist.

        ShortRelationship to other GFE packets. Required if this estimate is replacing another.Relationships to other compositions/documents
        Comments

        A document is a version specific composition.

        Control0..*
        TypeBackboneElement
        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 Composition.relatesTo. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ code
        • 44. Composition.relatesTo.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())
          46. Composition.relatesTo.code
          Definition

          The type of relationship that this composition has with anther composition or document.

          Shortreplaces | transforms | signs | appends
          Comments

          If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

          Control1..1
          BindingThe codes SHALL be taken from DocumentRelationshipTypehttp://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1
          (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

          The type of relationship between documents.

          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()))
          48. Composition.relatesTo.target[x]
          Definition

          The target composition/document of this relationship.

          ShortTarget of the relationship
          Control1..1
          TypeChoice of: Identifier, Reference(Composition)
          [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()))
          50. Composition.relatesTo:replaces
          Slice Namereplaces
          Definition

          Relationships that this composition has with other compositions or documents that already exist.

          ShortThe identifier of the document (Composition.identifier) this estimate replacesRelationships to other compositions/documents
          Comments

          A document is a version specific composition.

          Control0..1*
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          52. Composition.relatesTo:replaces.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())
          54. Composition.relatesTo:replaces.code
          Definition

          The type of relationship that this composition has with anther composition or document.

          Shortreplaces | transforms | signs | appends
          Comments

          If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

          Control1..1
          BindingThe codes SHALL be taken from DocumentRelationshipTypehttp://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1
          (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

          The type of relationship between documents.

          Typecode
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Pattern Valuereplaces
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          56. Composition.relatesTo:replaces.target[x]
          Definition

          The target composition/document of this relationship.

          ShortTarget of the relationship
          Control1..1
          TypeIdentifier, Reference(Composition)
          [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()))
          SlicingThis element introduces a set of slices on Composition.relatesTo.target[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
          • type @ $this
          • 58. Composition.relatesTo:replaces.target[x]:targetIdentifier
            Slice NametargetIdentifier
            Definition

            The target composition/document of this relationship.

            ShortTarget of the relationship
            Control1..1
            TypeIdentifier, Reference(Composition)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            60. Composition.relatesTo:replaces.target[x]:targetIdentifier.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()))
            62. Composition.relatesTo:replaces.target[x]:targetIdentifier.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.

            Control10..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.

            ExampleGeneral: http://www.acme.com/identifiers/patient
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            64. Composition.relatesTo:replaces.target[x]:targetIdentifier.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
            ExampleGeneral: 123456
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            66. Composition.section
            Definition

            The root of the sections that make up the composition.

            ShortSections Individual GFE BundlesComposition is broken into sections
            Control20..*
            TypeBackboneElement
            Is Modifierfalse
            Summaryfalse
            Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
            SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ code
            • 68. Composition.section.modifierExtension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

              ShortExtensions that cannot be ignored even if unrecognized
              Comments

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

              Control0..*
              TypeExtension
              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
              Summarytrue
              Requirements

              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

              Alternate Namesextensions, user content, modifiers
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              70. Composition.section:coverage
              Slice Namecoverage
              Definition

              The root of the sections that make up the composition.

              ShortSHALL have a reference to a PCTCoverage resource, contained within the document bundleComposition is broken into sections
              Control10..1*
              TypeBackboneElement
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
              cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
              ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
              cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
              72. Composition.section:coverage.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())
              74. Composition.section:coverage.code
              Definition

              A code identifying the kind of content contained within the section. This must be consistent with the section title.

              ShortClassification of section (recommended)
              Comments

              The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

              If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

              Control10..1
              BindingFor example codes, see DocumentSectionCodeshttp://hl7.org/fhir/ValueSet/doc-section-codes
              (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

              Classification of a section of a composition/document.

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Requirements

              Provides computable standardized labels to topics within the document.

              Pattern Value{
                "coding" : [{
                  "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentSection",
                  "code" : "coverage-section"
                }]
              }
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              76. Composition.section:coverage.entry
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortA reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control10..1*
              This element is affected by the following invariants: cmp-2
              TypeReference(PCT Coverage, Resource)bundled
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              78. Composition.section:gfeBundle
              Slice NamegfeBundle
              Definition

              The root of the sections that make up the composition.

              ShortSHALL reference one PCTGFEBundle or PCTGFEMissingBundle resource, which SHALL be contained in the document bundle, and the associated author (GFE Contributor) or proposed author (in the case of a missing GFE Bundle) contained in the document bundle.Composition is broken into sections
              Control10..*
              TypeBackboneElement
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
              cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
              ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              cmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
              cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
              80. Composition.section:gfeBundle.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())
              82. Composition.section:gfeBundle.code
              Definition

              A code identifying the kind of content contained within the section. This must be consistent with the section title.

              ShortClassification of section (recommended)
              Comments

              The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

              If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

              Control10..1
              BindingFor example codes, see DocumentSectionCodeshttp://hl7.org/fhir/ValueSet/doc-section-codes
              (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

              Classification of a section of a composition/document.

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Requirements

              Provides computable standardized labels to topics within the document.

              Pattern Value{
                "coding" : [{
                  "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentSection",
                  "code" : "gfe-section"
                }]
              }
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              84. Composition.section:gfeBundle.author
              Definition

              Identifies who is responsible for the information in this section, not necessarily who typed it in.

              ShortAssociated GFE author (GFE Contributor) or proposed author (in the case of a missing GFE Bundle) contained in the document bundleWho and/or what authored the section
              Control10..1*
              TypeReference(PCT Practitioner, PCT Organization, Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)bundled
              Is Modifierfalse
              Must Supporttrue
              Must Support TypesNo must-support rules about the choice of types/profiles
              Summaryfalse
              Requirements

              Identifies who is responsible for the content.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              86. Composition.section:gfeBundle.entry
              Definition

              A reference to the actual resource from which the narrative in the section is derived.

              ShortA reference to data that supports this section
              Comments

              If there are no entries in the list, an emptyReason SHOULD be provided.

              Control10..1*
              This element is affected by the following invariants: cmp-2
              TypeReference(PCT GFE Bundle, PCT GFE Missing Bundle, Resource)bundled
              Is Modifierfalse
              Must Supporttrue
              Must Support TypesNo must-support rules about the choice of types/profiles
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

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

              0. Composition
              Invariantspct-gfe-packet-composition-1: Scheduled service requests require a planned period of service (extension.where(url='http://hl7.org/fhir/us/davinci-pct/StructureDefinition/requestOriginationType' and value.ofType(CodeableConcept).coding.where(code='scheduled-request').exists()).exists() implies extension.where(url='http://hl7.org/fhir/us/davinci-pct/StructureDefinition/gfeServiceLinkingInfo' and extension.where(url = 'plannedPeriodOfService').exists()).exists())
              2. Composition.extension
              Control2..?
              SlicingThis element introduces a set of slices on Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 4. Composition.extension:requestInitiationTime
                Slice NamerequestInitiationTime
                ShortEstimate Request instant (instance service was scheduled or estimate requested)
                Comments

                Instant 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
                6. Composition.extension:gfeServiceLinkingInfo
                Slice NamegfeServiceLinkingInfo
                ShortGFE Service Linking Information including planned period of service and a GFE linking identifier. Scheduled services SHALL have a plannedPeriodOfService valueDate or ValuePeriod
                Control0..1
                TypeExtension(GFEServiceLinkingInfo) (Complex Extension)
                Must Supporttrue
                8. Composition.extension:requestOriginationType
                Slice NamerequestOriginationType
                ShortIndicator as to whether the request for estimate originated from a scheduled or unscheduled service.
                Control1..1
                TypeExtension(RequestOriginationType) (Extension Type: CodeableConcept)
                Must Supporttrue
                10. Composition.identifier
                NoteThis is a business identifier, not a resource identifier (see discussion)
                Control1..?
                12. Composition.identifier.system
                Control1..?
                14. Composition.identifier.value
                Control1..?
                16. Composition.type
                Pattern Value{
                  "coding" : [{
                    "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentTypeTemporaryTrialUse",
                    "code" : "gfe-packet"
                  }]
                }
                18. Composition.category
                Control1..?
                SlicingThis element introduces a set of slices on Composition.category. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ coding
                • 20. Composition.category:estimate
                  Slice Nameestimate
                  Control1..1
                  Must Supporttrue
                  22. Composition.category:estimate.coding
                  Control1..?
                  SlicingThis element introduces a set of slices on Composition.category.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ $this
                  • 24. Composition.category:estimate.coding:estimate-coding
                    Slice Nameestimate-coding
                    Control1..1
                    Must Supporttrue
                    Pattern Value{
                      "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentTypeTemporaryTrialUse",
                      "code" : "estimate"
                    }
                    26. Composition.subject
                    Control1..?
                    TypeReference(US Core Patient Profile)
                    Must Supporttrue
                    28. Composition.date
                    Invariantspct-datetime-to-seconds: Datetime must be at least to seconds. ($this is dateTime implies $this.toString().length() >= 19)
                    30. Composition.author
                    ShortAll involved authoring parties, including all Good Faith Estimate (GFE) providers
                    TypeReference(PCT Organization, PCT Practitioner)
                    32. Composition.title
                    Must Supporttrue
                    34. Composition.relatesTo
                    ShortRelationship to other GFE packets. Required if this estimate is replacing another.
                    SlicingThis element introduces a set of slices on Composition.relatesTo. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ code
                    • 36. Composition.relatesTo:replaces
                      Slice Namereplaces
                      ShortThe identifier of the document (Composition.identifier) this estimate replaces
                      Control0..1
                      Must Supporttrue
                      38. Composition.relatesTo:replaces.code
                      Pattern Valuereplaces
                      40. Composition.relatesTo:replaces.target[x]
                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                      SlicingThis element introduces a set of slices on Composition.relatesTo.target[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • type @ $this
                      • 42. Composition.relatesTo:replaces.target[x]:targetIdentifier
                        Slice NametargetIdentifier
                        Control1..1
                        TypeIdentifier
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        Must Supporttrue
                        44. Composition.relatesTo:replaces.target[x]:targetIdentifier.system
                        Control1..?
                        46. Composition.relatesTo:replaces.target[x]:targetIdentifier.value
                        Control1..?
                        48. Composition.section
                        ShortSections Individual GFE Bundles
                        Control2..?
                        SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ code
                        • 50. Composition.section:coverage
                          Slice Namecoverage
                          ShortSHALL have a reference to a PCTCoverage resource, contained within the document bundle
                          Control1..1
                          Must Supporttrue
                          52. Composition.section:coverage.code
                          Control1..?
                          Pattern Value{
                            "coding" : [{
                              "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentSection",
                              "code" : "coverage-section"
                            }]
                          }
                          54. Composition.section:coverage.entry
                          Control1..1
                          TypeReference(PCT Coverage)bundled
                          Must Supporttrue
                          56. Composition.section:gfeBundle
                          Slice NamegfeBundle
                          ShortSHALL reference one PCTGFEBundle or PCTGFEMissingBundle resource, which SHALL be contained in the document bundle, and the associated author (GFE Contributor) or proposed author (in the case of a missing GFE Bundle) contained in the document bundle.
                          Control1..*
                          Must Supporttrue
                          58. Composition.section:gfeBundle.code
                          Control1..?
                          Pattern Value{
                            "coding" : [{
                              "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentSection",
                              "code" : "gfe-section"
                            }]
                          }
                          60. Composition.section:gfeBundle.author
                          ShortAssociated GFE author (GFE Contributor) or proposed author (in the case of a missing GFE Bundle) contained in the document bundle
                          Control1..1
                          TypeReference(PCT Practitioner, PCT Organization)bundled
                          Must Supporttrue
                          Must Support TypesNo must-support rules about the choice of types/profiles
                          62. Composition.section:gfeBundle.entry
                          Control1..1
                          TypeReference(PCT GFE Bundle, PCT GFE Missing Bundle)bundled
                          Must Supporttrue
                          Must Support TypesNo must-support rules about the choice of types/profiles

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

                          0. Composition
                          Definition

                          A set of healthcare-related information that is assembled together into a single logical package that provides a single coherent statement of meaning, establishes its own context and that has clinical attestation with regard to who is making the statement. A Composition defines the structure and narrative content necessary for a document. However, a Composition alone does not constitute a document. Rather, the Composition must be the first entry in a Bundle where Bundle.type=document, and any other resources referenced from Composition must be included as subsequent entries in the Bundle (for example Patient, Practitioner, Encounter, etc.).

                          ShortA set of resources composed into a single coherent clinical statement with clinical attestation
                          Comments

                          While the focus of this specification is on patient-specific clinical statements, this resource can also apply to other healthcare-related statements such as study protocol designs, healthcare invoices and other activities that are not necessarily patient-specific or clinical.

                          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())
                          pct-gfe-packet-composition-1: Scheduled service requests require a planned period of service (extension.where(url='http://hl7.org/fhir/us/davinci-pct/StructureDefinition/requestOriginationType' and value.ofType(CodeableConcept).coding.where(code='scheduled-request').exists()).exists() implies extension.where(url='http://hl7.org/fhir/us/davinci-pct/StructureDefinition/gfeServiceLinkingInfo' and extension.where(url = 'plannedPeriodOfService').exists()).exists())
                          2. Composition.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. Composition.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. Composition.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. Composition.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. Composition.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. Composition.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. Composition.extension
                          Definition

                          An Extension

                          ShortExtension
                          Control2..*
                          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 Composition.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 16. Composition.extension:requestInitiationTime
                            Slice NamerequestInitiationTime
                            Definition

                            Instant from which the request is being initiated.

                            ShortEstimate Request instant (instance service was scheduled or estimate requested)
                            Comments

                            Instant 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
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            18. Composition.extension:gfeServiceLinkingInfo
                            Slice NamegfeServiceLinkingInfo
                            Definition

                            This extension is used to provide the GFE Service Linking Information. This allows implementers to have the same identifier on multiple GFEs that are part of one period of care's services. This would be needed for some of the workflow options that businesses may decide to use.

                            ShortGFE Service Linking Information including planned period of service and a GFE linking identifier. Scheduled services SHALL have a plannedPeriodOfService valueDate or ValuePeriod
                            Control0..1
                            This element is affected by the following invariants: ele-1
                            TypeExtension(GFEServiceLinkingInfo) (Complex Extension)
                            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())
                            20. Composition.extension:requestOriginationType
                            Slice NamerequestOriginationType
                            Definition

                            Indicator as to whether the request for estimate originated from a scheduled or unscheduled service.

                            ShortIndicator as to whether the request for estimate originated from a scheduled or unscheduled service.
                            Control1..1
                            This element is affected by the following invariants: ele-1
                            TypeExtension(RequestOriginationType) (Extension Type: CodeableConcept)
                            Is Modifierfalse
                            Must Supporttrue
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            22. Composition.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. Composition.identifier
                            Definition

                            A version-independent identifier for the Composition. This identifier stays constant as the composition is changed over time.

                            ShortVersion-independent identifier for the Composition
                            Comments

                            Similar to ClinicalDocument/setId in CDA. See discussion in resource definition for how these relate.

                            NoteThis is a business identifier, not a resource identifier (see discussion)
                            Control1..1
                            TypeIdentifier
                            Is Modifierfalse
                            Summarytrue
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            26. Composition.identifier.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. Composition.identifier.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 Composition.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 30. Composition.identifier.use
                              Definition

                              The purpose of this identifier.

                              Shortusual | official | temp | secondary | old (If known)
                              Comments

                              Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

                              Control0..1
                              BindingThe codes SHALL be taken from IdentifierUse
                              (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

                              Identifies the purpose for this identifier, if known .

                              Typecode
                              Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Summarytrue
                              Requirements

                              Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              32. Composition.identifier.type
                              Definition

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

                              ShortDescription of identifier
                              Comments

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

                              Control0..1
                              BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
                              (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

                              TypeCodeableConcept
                              Is Modifierfalse
                              Summarytrue
                              Requirements

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

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

                              Control1..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.

                              ExampleGeneral: http://www.acme.com/identifiers/patient
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              36. Composition.identifier.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
                              ExampleGeneral: 123456
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              38. Composition.identifier.period
                              Definition

                              Time period during which identifier is/was valid for use.

                              ShortTime period when id is/was valid for use
                              Control0..1
                              TypePeriod
                              Is Modifierfalse
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              40. Composition.identifier.assigner
                              Definition

                              Organization that issued/manages the identifier.

                              ShortOrganization that issued id (may be just text)
                              Comments

                              The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

                              Control0..1
                              TypeReference(Organization)
                              Is Modifierfalse
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              42. Composition.status
                              Definition

                              The workflow/clinical status of this composition. The status is a marker for the clinical standing of the document.

                              Shortpreliminary | final | amended | entered-in-error
                              Comments

                              If a composition is marked as withdrawn, the compositions/documents in the series, or data from the composition or document series, should never be displayed to a user without being clearly marked as untrustworthy. The flag "entered-in-error" is why this element is labeled as a modifier of other elements.

                              Some reporting work flows require that the original narrative of a final document never be altered; instead, only new narrative can be added. The composition resource has no explicit status for explicitly noting whether this business rule is in effect. This would be handled by an extension if required.

                              Control1..1
                              BindingThe codes SHALL be taken from CompositionStatus
                              (required to http://hl7.org/fhir/ValueSet/composition-status|4.0.1)

                              The workflow/clinical status of the composition.

                              Typecode
                              Is Modifiertrue because This element is labelled 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

                              Need to be able to mark interim, amended, or withdrawn compositions or documents.

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

                              Specifies the particular kind of composition (e.g. History and Physical, Discharge Summary, Progress Note). This usually equates to the purpose of making the composition.

                              ShortKind of composition (LOINC if possible)
                              Comments

                              For Composition type, LOINC is ubiquitous and strongly endorsed by HL7. Most implementation guides will require a specific LOINC code, or use LOINC as an extensible binding.

                              Control1..1
                              BindingThe codes SHOULD be taken from FHIRDocumentTypeCodes
                              (preferred to http://hl7.org/fhir/ValueSet/doc-typecodes)

                              Type of a composition.

                              TypeCodeableConcept
                              Is Modifierfalse
                              Summarytrue
                              Requirements

                              Key metadata element describing the composition, used in searching/filtering.

                              Pattern Value{
                                "coding" : [{
                                  "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentTypeTemporaryTrialUse",
                                  "code" : "gfe-packet"
                                }]
                              }
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              46. Composition.category
                              Definition

                              A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

                              ShortCategorization of Composition
                              Comments

                              This is a metadata field from XDS/MHD.

                              Control1..*
                              BindingFor example codes, see DocumentClassValueSet
                              (example to http://hl7.org/fhir/ValueSet/document-classcodes)

                              High-level kind of a clinical document at a macro level.

                              TypeCodeableConcept
                              Is Modifierfalse
                              Summarytrue
                              Requirements

                              Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

                              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 Composition.category. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ coding
                              • 48. Composition.category:estimate
                                Slice Nameestimate
                                Definition

                                A categorization for the type of the composition - helps for indexing and searching. This may be implied by or derived from the code specified in the Composition Type.

                                ShortCategorization of Composition
                                Comments

                                This is a metadata field from XDS/MHD.

                                Control1..1
                                BindingFor example codes, see DocumentClassValueSet
                                (example to http://hl7.org/fhir/ValueSet/document-classcodes)

                                High-level kind of a clinical document at a macro level.

                                TypeCodeableConcept
                                Is Modifierfalse
                                Must Supporttrue
                                Summarytrue
                                Requirements

                                Helps humans to assess whether the composition is of interest when viewing an index of compositions or documents.

                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                50. Composition.category:estimate.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
                                52. Composition.category:estimate.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 Composition.category.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 54. Composition.category:estimate.coding
                                  Definition

                                  A reference to a code defined by a terminology system.

                                  ShortCode defined by a terminology system
                                  Comments

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

                                  Control1..*
                                  TypeCoding
                                  Is Modifierfalse
                                  Summarytrue
                                  Requirements

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

                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  SlicingThis element introduces a set of slices on Composition.category.coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ $this
                                  • 56. Composition.category:estimate.coding:estimate-coding
                                    Slice Nameestimate-coding
                                    Definition

                                    A reference to a code defined by a terminology system.

                                    ShortCode defined by a terminology system
                                    Comments

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

                                    Control1..1
                                    TypeCoding
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summarytrue
                                    Requirements

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

                                    Pattern Value{
                                      "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentTypeTemporaryTrialUse",
                                      "code" : "estimate"
                                    }
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    58. Composition.category:estimate.text
                                    Definition

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

                                    ShortPlain text representation of the concept
                                    Comments

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

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

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

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

                                    Who or what the composition is about. The composition can be about a person, (patient or healthcare practitioner), a device (e.g. a machine) or even a group of subjects (such as a document about a herd of livestock, or a set of patients that share a common exposure).

                                    ShortWho and/or what the composition is about
                                    Comments

                                    For clinical documents, this is usually the patient.

                                    Control1..1
                                    TypeReference(US Core Patient Profile)
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summarytrue
                                    Requirements

                                    Essential metadata for searching for the composition. Identifies who and/or what the composition/document is about.

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

                                    Describes the clinical encounter or type of care this documentation is associated with.

                                    ShortContext of the Composition
                                    Control0..1
                                    TypeReference(Encounter)
                                    Is Modifierfalse
                                    Summarytrue
                                    Requirements

                                    Provides context for the composition and supports searching.

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

                                    The composition editing time, when the composition was last logically changed by the author.

                                    ShortComposition editing time
                                    Comments

                                    The Last Modified Date on the composition may be after the date of the document was attested without being changed.

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

                                    dateTime is used for tracking, organizing versions and searching. Note that this is the time of authoring. When packaged in a document, Bundle.timestamp is the date of packaging.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    pct-datetime-to-seconds: Datetime must be at least to seconds. ($this is dateTime implies $this.toString().length() >= 19)
                                    66. Composition.author
                                    Definition

                                    Identifies who is responsible for the information in the composition, not necessarily who typed it in.

                                    ShortAll involved authoring parties, including all Good Faith Estimate (GFE) providers
                                    Control1..*
                                    TypeReference(PCT Organization, PCT Practitioner)
                                    Is Modifierfalse
                                    Summarytrue
                                    Requirements

                                    Identifies who is responsible for the content.

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

                                    Official human-readable label for the composition.

                                    ShortHuman Readable name/title
                                    Comments

                                    For many compositions, the title is the same as the text or a display name of Composition.type (e.g. a "consultation" or "progress note"). Note that CDA does not make title mandatory, but there are no known cases where it is useful for title to be omitted, so it is mandatory here. Feedback on this requirement is welcome during the trial use period.

                                    Control1..1
                                    Typestring
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Must Supporttrue
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    70. Composition.confidentiality
                                    Definition

                                    The code specifying the level of confidentiality of the Composition.

                                    ShortAs defined by affinity domain
                                    Comments

                                    The exact use of this element, and enforcement and issues related to highly sensitive documents are out of scope for the base specification, and delegated to implementation profiles (see security section). This element is labeled as a modifier because highly confidential documents must not be treated as if they are not.

                                    Control0..1
                                    BindingThe codes SHALL be taken from v3.ConfidentialityClassification (2014-03-26)
                                    (required to http://terminology.hl7.org/ValueSet/v3-ConfidentialityClassification|2014-03-26)

                                    Codes specifying the level of confidentiality of the composition.

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

                                    A participant who has attested to the accuracy of the composition/document.

                                    ShortAttests to accuracy of composition
                                    Comments

                                    Only list each attester once.

                                    Control0..*
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Identifies responsibility for the accuracy of the composition content.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    74. Composition.attester.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
                                    76. Composition.attester.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())
                                    78. Composition.attester.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())
                                    80. Composition.attester.mode
                                    Definition

                                    The type of attestation the authenticator offers.

                                    Shortpersonal | professional | legal | official
                                    Control1..1
                                    BindingThe codes SHALL be taken from CompositionAttestationMode
                                    (required to http://hl7.org/fhir/ValueSet/composition-attestation-mode|4.0.1)

                                    The way in which a person authenticated a composition.

                                    Typecode
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summaryfalse
                                    Requirements

                                    Indicates the level of authority of the attestation.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    82. Composition.attester.time
                                    Definition

                                    When the composition was attested by the party.

                                    ShortWhen the composition was attested
                                    Control0..1
                                    TypedateTime
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summaryfalse
                                    Requirements

                                    Identifies when the information in the composition was deemed accurate. (Things may have changed since then.).

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    84. Composition.attester.party
                                    Definition

                                    Who attested the composition in the specified way.

                                    ShortWho attested the composition
                                    Control0..1
                                    TypeReference(Patient, RelatedPerson, Practitioner, PractitionerRole, Organization)
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Identifies who has taken on the responsibility for accuracy of the composition content.

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

                                    Identifies the organization or group who is responsible for ongoing maintenance of and access to the composition/document information.

                                    ShortOrganization which maintains the composition
                                    Comments

                                    This is useful when documents are derived from a composition - provides guidance for how to get the latest version of the document. This is optional because this is sometimes not known by the authoring system, and can be inferred by context. However, it is important that this information be known when working with a derived document, so providing a custodian is encouraged.

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

                                    Identifies where to go to find the current version, where to report issues, etc.

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

                                    Relationships that this composition has with other compositions or documents that already exist.

                                    ShortRelationship to other GFE packets. Required if this estimate is replacing another.
                                    Comments

                                    A document is a version specific composition.

                                    Control0..*
                                    TypeBackboneElement
                                    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 Composition.relatesTo. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ code
                                    • 90. Composition.relatesTo.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
                                      92. Composition.relatesTo.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())
                                      94. Composition.relatesTo.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())
                                      96. Composition.relatesTo.code
                                      Definition

                                      The type of relationship that this composition has with anther composition or document.

                                      Shortreplaces | transforms | signs | appends
                                      Comments

                                      If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

                                      Control1..1
                                      BindingThe codes SHALL be taken from DocumentRelationshipType
                                      (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

                                      The type of relationship between documents.

                                      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()))
                                      98. Composition.relatesTo.target[x]
                                      Definition

                                      The target composition/document of this relationship.

                                      ShortTarget of the relationship
                                      Control1..1
                                      TypeChoice of: Identifier, Reference(Composition)
                                      [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()))
                                      100. Composition.relatesTo:replaces
                                      Slice Namereplaces
                                      Definition

                                      Relationships that this composition has with other compositions or documents that already exist.

                                      ShortThe identifier of the document (Composition.identifier) this estimate replaces
                                      Comments

                                      A document is a version specific composition.

                                      Control0..1
                                      TypeBackboneElement
                                      Is Modifierfalse
                                      Must Supporttrue
                                      Summaryfalse
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      102. Composition.relatesTo:replaces.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
                                      104. Composition.relatesTo:replaces.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())
                                      106. Composition.relatesTo:replaces.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())
                                      108. Composition.relatesTo:replaces.code
                                      Definition

                                      The type of relationship that this composition has with anther composition or document.

                                      Shortreplaces | transforms | signs | appends
                                      Comments

                                      If this document appends another document, then the document cannot be fully understood without also accessing the referenced document.

                                      Control1..1
                                      BindingThe codes SHALL be taken from DocumentRelationshipType
                                      (required to http://hl7.org/fhir/ValueSet/document-relationship-type|4.0.1)

                                      The type of relationship between documents.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summaryfalse
                                      Pattern Valuereplaces
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      110. Composition.relatesTo:replaces.target[x]
                                      Definition

                                      The target composition/document of this relationship.

                                      ShortTarget of the relationship
                                      Control1..1
                                      TypeIdentifier
                                      [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()))
                                      SlicingThis element introduces a set of slices on Composition.relatesTo.target[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                                      • type @ $this
                                      • 112. Composition.relatesTo:replaces.target[x]:targetIdentifier
                                        Slice NametargetIdentifier
                                        Definition

                                        The target composition/document of this relationship.

                                        ShortTarget of the relationship
                                        Control1..1
                                        TypeIdentifier
                                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                        Is Modifierfalse
                                        Must Supporttrue
                                        Summaryfalse
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        114. Composition.relatesTo:replaces.target[x]:targetIdentifier.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
                                        116. Composition.relatesTo:replaces.target[x]:targetIdentifier.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 Composition.relatesTo.target[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 118. Composition.relatesTo:replaces.target[x]:targetIdentifier.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()))
                                          120. Composition.relatesTo:replaces.target[x]:targetIdentifier.type
                                          Definition

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

                                          ShortDescription of identifier
                                          Comments

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

                                          Control0..1
                                          BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
                                          (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

                                          TypeCodeableConcept
                                          Is Modifierfalse
                                          Summarytrue
                                          Requirements

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

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          122. Composition.relatesTo:replaces.target[x]:targetIdentifier.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.

                                          Control1..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.

                                          ExampleGeneral: http://www.acme.com/identifiers/patient
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          124. Composition.relatesTo:replaces.target[x]:targetIdentifier.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
                                          ExampleGeneral: 123456
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          126. Composition.relatesTo:replaces.target[x]:targetIdentifier.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()))
                                          128. Composition.relatesTo:replaces.target[x]:targetIdentifier.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()))
                                          130. Composition.event
                                          Definition

                                          The clinical service, such as a colonoscopy or an appendectomy, being documented.

                                          ShortThe clinical service(s) being documented
                                          Comments

                                          The event needs to be consistent with the type element, though can provide further information if desired.

                                          Control0..*
                                          TypeBackboneElement
                                          Is Modifierfalse
                                          Summarytrue
                                          Requirements

                                          Provides context for the composition and creates a linkage between a resource describing an event and the composition created describing the event.

                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          132. Composition.event.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
                                          134. Composition.event.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())
                                          136. Composition.event.modifierExtension
                                          Definition

                                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                          ShortExtensions that cannot be ignored even if unrecognized
                                          Comments

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

                                          Control0..*
                                          TypeExtension
                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                          Summarytrue
                                          Requirements

                                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                          Alternate Namesextensions, user content, modifiers
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                          138. Composition.event.code
                                          Definition

                                          This list of codes represents the main clinical acts, such as a colonoscopy or an appendectomy, being documented. In some cases, the event is inherent in the typeCode, such as a "History and Physical Report" in which the procedure being documented is necessarily a "History and Physical" act.

                                          ShortCode(s) that apply to the event being documented
                                          Comments

                                          An event can further specialize the act inherent in the typeCode, such as where it is simply "Procedure Report" and the procedure was a "colonoscopy". If one or more eventCodes are included, they SHALL NOT conflict with the values inherent in the classCode, practiceSettingCode or typeCode, as such a conflict would create an ambiguous situation. This short list of codes is provided to be used as key words for certain types of queries.

                                          Control0..*
                                          BindingFor example codes, see ActCode (3.0.0)
                                          (example to http://terminology.hl7.org/ValueSet/v3-ActCode|3.0.0)

                                          This list of codes represents the main clinical acts being documented.

                                          TypeCodeableConcept
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          140. Composition.event.period
                                          Definition

                                          The period of time covered by the documentation. There is no assertion that the documentation is a complete representation for this period, only that it documents events during this time.

                                          ShortThe period covered by the documentation
                                          Control0..1
                                          TypePeriod
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          142. Composition.event.detail
                                          Definition

                                          The description and/or reference of the event(s) being documented. For example, this could be used to document such a colonoscopy or an appendectomy.

                                          ShortThe event(s) being documented
                                          Control0..*
                                          TypeReference(Resource)
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          144. Composition.section
                                          Definition

                                          The root of the sections that make up the composition.

                                          ShortSections Individual GFE Bundles
                                          Control2..*
                                          TypeBackboneElement
                                          Is Modifierfalse
                                          Summaryfalse
                                          Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                                          cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                                          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          SlicingThis element introduces a set of slices on Composition.section. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                          • value @ code
                                          • 146. Composition.section.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
                                            148. Composition.section.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())
                                            150. Composition.section.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())
                                            152. Composition.section.title
                                            Definition

                                            The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                                            ShortLabel for section (e.g. for ToC)
                                            Comments

                                            The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

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

                                            Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                                            Alternate Namesheader, label, caption
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            154. Composition.section.code
                                            Definition

                                            A code identifying the kind of content contained within the section. This must be consistent with the section title.

                                            ShortClassification of section (recommended)
                                            Comments

                                            The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                                            If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                                            Control0..1
                                            BindingFor example codes, see DocumentSectionCodes
                                            (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                                            Classification of a section of a composition/document.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Provides computable standardized labels to topics within the document.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            156. Composition.section.author
                                            Definition

                                            Identifies who is responsible for the information in this section, not necessarily who typed it in.

                                            ShortWho and/or what authored the section
                                            Control0..*
                                            TypeReference(Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Identifies who is responsible for the content.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            158. Composition.section.focus
                                            Definition

                                            The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                                            ShortWho/what the section is about, when it is not about the subject of composition
                                            Comments

                                            Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                                            Control0..1
                                            TypeReference(Resource)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            160. Composition.section.text
                                            Definition

                                            A human-readable narrative that contains the attested content of the section, 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.

                                            ShortText summary of the section, for human interpretation
                                            Comments

                                            Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                                            Control0..1
                                            This element is affected by the following invariants: cmp-1
                                            TypeNarrative
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            162. Composition.section.mode
                                            Definition

                                            How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

                                            Shortworking | snapshot | changes
                                            Comments

                                            This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

                                            Control0..1
                                            BindingThe codes SHALL be taken from ListMode
                                            (required to http://hl7.org/fhir/ValueSet/list-mode|4.0.1)

                                            The processing mode that applies to this section.

                                            Typecode
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summaryfalse
                                            Requirements

                                            Sections are used in various ways, and it must be known in what way it is safe to use the entries in them.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            164. Composition.section.orderedBy
                                            Definition

                                            Specifies the order applied to the items in the section entries.

                                            ShortOrder of section entries
                                            Comments

                                            Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

                                            Control0..1
                                            BindingThe codes SHOULD be taken from ListOrderCodes
                                            (preferred to http://hl7.org/fhir/ValueSet/list-order)

                                            What order applies to the items in the entry.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            166. Composition.section.entry
                                            Definition

                                            A reference to the actual resource from which the narrative in the section is derived.

                                            ShortA reference to data that supports this section
                                            Comments

                                            If there are no entries in the list, an emptyReason SHOULD be provided.

                                            Control0..*
                                            This element is affected by the following invariants: cmp-2
                                            TypeReference(Resource)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            168. Composition.section.emptyReason
                                            Definition

                                            If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                                            ShortWhy the section is empty
                                            Comments

                                            The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

                                            Control0..1
                                            This element is affected by the following invariants: cmp-2
                                            BindingThe codes SHOULD be taken from ListEmptyReasons
                                            (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                                            If a section is empty, why it is empty.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Allows capturing things like "none exist" or "not asked" which can be important for most lists.

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

                                            A nested sub-section within this section.

                                            ShortNested Section
                                            Comments

                                            Nested sections are primarily used to help human readers navigate to particular portions of the document.

                                            Control0..*
                                            This element is affected by the following invariants: cmp-1
                                            TypeSeettp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            172. Composition.section:coverage
                                            Slice Namecoverage
                                            Definition

                                            The root of the sections that make up the composition.

                                            ShortSHALL have a reference to a PCTCoverage resource, contained within the document bundle
                                            Control1..1
                                            TypeBackboneElement
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Summaryfalse
                                            Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                                            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                                            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            174. Composition.section:coverage.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
                                            176. Composition.section:coverage.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())
                                            178. Composition.section:coverage.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())
                                            180. Composition.section:coverage.title
                                            Definition

                                            The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                                            ShortLabel for section (e.g. for ToC)
                                            Comments

                                            The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

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

                                            Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                                            Alternate Namesheader, label, caption
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            182. Composition.section:coverage.code
                                            Definition

                                            A code identifying the kind of content contained within the section. This must be consistent with the section title.

                                            ShortClassification of section (recommended)
                                            Comments

                                            The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                                            If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                                            Control1..1
                                            BindingFor example codes, see DocumentSectionCodes
                                            (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                                            Classification of a section of a composition/document.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Provides computable standardized labels to topics within the document.

                                            Pattern Value{
                                              "coding" : [{
                                                "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentSection",
                                                "code" : "coverage-section"
                                              }]
                                            }
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            184. Composition.section:coverage.author
                                            Definition

                                            Identifies who is responsible for the information in this section, not necessarily who typed it in.

                                            ShortWho and/or what authored the section
                                            Control0..*
                                            TypeReference(Practitioner, PractitionerRole, Device, Patient, RelatedPerson, Organization)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Identifies who is responsible for the content.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            186. Composition.section:coverage.focus
                                            Definition

                                            The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                                            ShortWho/what the section is about, when it is not about the subject of composition
                                            Comments

                                            Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                                            Control0..1
                                            TypeReference(Resource)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            188. Composition.section:coverage.text
                                            Definition

                                            A human-readable narrative that contains the attested content of the section, 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.

                                            ShortText summary of the section, for human interpretation
                                            Comments

                                            Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                                            Control0..1
                                            This element is affected by the following invariants: cmp-1
                                            TypeNarrative
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            190. Composition.section:coverage.mode
                                            Definition

                                            How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

                                            Shortworking | snapshot | changes
                                            Comments

                                            This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

                                            Control0..1
                                            BindingThe codes SHALL be taken from ListMode
                                            (required to http://hl7.org/fhir/ValueSet/list-mode|4.0.1)

                                            The processing mode that applies to this section.

                                            Typecode
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summaryfalse
                                            Requirements

                                            Sections are used in various ways, and it must be known in what way it is safe to use the entries in them.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            192. Composition.section:coverage.orderedBy
                                            Definition

                                            Specifies the order applied to the items in the section entries.

                                            ShortOrder of section entries
                                            Comments

                                            Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

                                            Control0..1
                                            BindingThe codes SHOULD be taken from ListOrderCodes
                                            (preferred to http://hl7.org/fhir/ValueSet/list-order)

                                            What order applies to the items in the entry.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            194. Composition.section:coverage.entry
                                            Definition

                                            A reference to the actual resource from which the narrative in the section is derived.

                                            ShortA reference to data that supports this section
                                            Comments

                                            If there are no entries in the list, an emptyReason SHOULD be provided.

                                            Control1..1
                                            This element is affected by the following invariants: cmp-2
                                            TypeReference(PCT Coverage)bundled
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            196. Composition.section:coverage.emptyReason
                                            Definition

                                            If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                                            ShortWhy the section is empty
                                            Comments

                                            The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

                                            Control0..1
                                            This element is affected by the following invariants: cmp-2
                                            BindingThe codes SHOULD be taken from ListEmptyReasons
                                            (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                                            If a section is empty, why it is empty.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Allows capturing things like "none exist" or "not asked" which can be important for most lists.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            198. Composition.section:coverage.section
                                            Definition

                                            A nested sub-section within this section.

                                            ShortNested Section
                                            Comments

                                            Nested sections are primarily used to help human readers navigate to particular portions of the document.

                                            Control0..*
                                            This element is affected by the following invariants: cmp-1
                                            TypeSeettp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            200. Composition.section:gfeBundle
                                            Slice NamegfeBundle
                                            Definition

                                            The root of the sections that make up the composition.

                                            ShortSHALL reference one PCTGFEBundle or PCTGFEMissingBundle resource, which SHALL be contained in the document bundle, and the associated author (GFE Contributor) or proposed author (in the case of a missing GFE Bundle) contained in the document bundle.
                                            Control1..*
                                            TypeBackboneElement
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Summaryfalse
                                            Invariantscmp-1: A section must contain at least one of text, entries, or sub-sections (text.exists() or entry.exists() or section.exists())
                                            cmp-2: A section can only have an emptyReason if it is empty (emptyReason.empty() or entry.empty())
                                            ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            202. Composition.section:gfeBundle.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
                                            204. Composition.section:gfeBundle.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())
                                            206. Composition.section:gfeBundle.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())
                                            208. Composition.section:gfeBundle.title
                                            Definition

                                            The label for this particular section. This will be part of the rendered content for the document, and is often used to build a table of contents.

                                            ShortLabel for section (e.g. for ToC)
                                            Comments

                                            The title identifies the section for a human reader. The title must be consistent with the narrative of the resource that is the target of the section.content reference. Generally, sections SHOULD have titles, but in some documents, it is unnecessary or inappropriate. Typically, this is where a section has subsections that have their own adequately distinguishing title, or documents that only have a single section. Most Implementation Guides will make section title to be a required element.

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

                                            Section headings are often standardized for different types of documents. They give guidance to humans on how the document is organized.

                                            Alternate Namesheader, label, caption
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            210. Composition.section:gfeBundle.code
                                            Definition

                                            A code identifying the kind of content contained within the section. This must be consistent with the section title.

                                            ShortClassification of section (recommended)
                                            Comments

                                            The code identifies the section for an automated processor of the document. This is particularly relevant when using profiles to control the structure of the document.

                                            If the section has content (instead of sub-sections), the section.code does not change the meaning or interpretation of the resource that is the content of the section in the comments for the section.code.

                                            Control1..1
                                            BindingFor example codes, see DocumentSectionCodes
                                            (example to http://hl7.org/fhir/ValueSet/doc-section-codes)

                                            Classification of a section of a composition/document.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Provides computable standardized labels to topics within the document.

                                            Pattern Value{
                                              "coding" : [{
                                                "system" : "http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTDocumentSection",
                                                "code" : "gfe-section"
                                              }]
                                            }
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            212. Composition.section:gfeBundle.author
                                            Definition

                                            Identifies who is responsible for the information in this section, not necessarily who typed it in.

                                            ShortAssociated GFE author (GFE Contributor) or proposed author (in the case of a missing GFE Bundle) contained in the document bundle
                                            Control1..1
                                            TypeReference(PCT Practitioner, PCT Organization)bundled
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Must Support TypesNo must-support rules about the choice of types/profiles
                                            Summaryfalse
                                            Requirements

                                            Identifies who is responsible for the content.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            214. Composition.section:gfeBundle.focus
                                            Definition

                                            The actual focus of the section when it is not the subject of the composition, but instead represents something or someone associated with the subject such as (for a patient subject) a spouse, parent, fetus, or donor. If not focus is specified, the focus is assumed to be focus of the parent section, or, for a section in the Composition itself, the subject of the composition. Sections with a focus SHALL only include resources where the logical subject (patient, subject, focus, etc.) matches the section focus, or the resources have no logical subject (few resources).

                                            ShortWho/what the section is about, when it is not about the subject of composition
                                            Comments

                                            Typically, sections in a doument are about the subject of the document, whether that is a patient, or group of patients, location, or device, or whatever. For some kind of documents, some sections actually contain data about related entities. Typical examples are a section in a newborn discharge summary concerning the mother, or family history documents, with a section about each family member, though there are many other examples.

                                            Control0..1
                                            TypeReference(Resource)
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            216. Composition.section:gfeBundle.text
                                            Definition

                                            A human-readable narrative that contains the attested content of the section, 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.

                                            ShortText summary of the section, for human interpretation
                                            Comments

                                            Document profiles may define what content should be represented in the narrative to ensure clinical safety.

                                            Control0..1
                                            This element is affected by the following invariants: cmp-1
                                            TypeNarrative
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            218. Composition.section:gfeBundle.mode
                                            Definition

                                            How the entry list was prepared - whether it is a working list that is suitable for being maintained on an ongoing basis, or if it represents a snapshot of a list of items from another source, or whether it is a prepared list where items may be marked as added, modified or deleted.

                                            Shortworking | snapshot | changes
                                            Comments

                                            This element is labeled as a modifier because a change list must not be misunderstood as a complete list.

                                            Control0..1
                                            BindingThe codes SHALL be taken from ListMode
                                            (required to http://hl7.org/fhir/ValueSet/list-mode|4.0.1)

                                            The processing mode that applies to this section.

                                            Typecode
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summaryfalse
                                            Requirements

                                            Sections are used in various ways, and it must be known in what way it is safe to use the entries in them.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            220. Composition.section:gfeBundle.orderedBy
                                            Definition

                                            Specifies the order applied to the items in the section entries.

                                            ShortOrder of section entries
                                            Comments

                                            Applications SHOULD render ordered lists in the order provided, but MAY allow users to re-order based on their own preferences as well. If there is no order specified, the order is unknown, though there may still be some order.

                                            Control0..1
                                            BindingThe codes SHOULD be taken from ListOrderCodes
                                            (preferred to http://hl7.org/fhir/ValueSet/list-order)

                                            What order applies to the items in the entry.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Important for presentation and rendering. Lists may be sorted to place more important information first or to group related entries.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            222. Composition.section:gfeBundle.entry
                                            Definition

                                            A reference to the actual resource from which the narrative in the section is derived.

                                            ShortA reference to data that supports this section
                                            Comments

                                            If there are no entries in the list, an emptyReason SHOULD be provided.

                                            Control1..1
                                            This element is affected by the following invariants: cmp-2
                                            TypeReference(PCT GFE Bundle, PCT GFE Missing Bundle)bundled
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Must Support TypesNo must-support rules about the choice of types/profiles
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            224. Composition.section:gfeBundle.emptyReason
                                            Definition

                                            If the section is empty, why the list is empty. An empty section typically has some text explaining the empty reason.

                                            ShortWhy the section is empty
                                            Comments

                                            The various reasons for an empty section make a significant interpretation to its interpretation. Note that this code is for use when the entire section content has been suppressed, and not for when individual items are omitted - implementers may consider using a text note or a flag on an entry in these cases.

                                            Control0..1
                                            This element is affected by the following invariants: cmp-2
                                            BindingThe codes SHOULD be taken from ListEmptyReasons
                                            (preferred to http://hl7.org/fhir/ValueSet/list-empty-reason)

                                            If a section is empty, why it is empty.

                                            TypeCodeableConcept
                                            Is Modifierfalse
                                            Summaryfalse
                                            Requirements

                                            Allows capturing things like "none exist" or "not asked" which can be important for most lists.

                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            226. Composition.section:gfeBundle.section
                                            Definition

                                            A nested sub-section within this section.

                                            ShortNested Section
                                            Comments

                                            Nested sections are primarily used to help human readers navigate to particular portions of the document.

                                            Control0..*
                                            This element is affected by the following invariants: cmp-1
                                            TypeSeettp://hl7.org/fhir/StructureDefinition/Composition#Composition.section
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))