minimal Common Oncology Data Elements (mCODE) Implementation Guide
4.0.0 - STU4 United States of America flag

minimal Common Oncology Data Elements (mCODE) Implementation Guide, published by HL7 International / Clinical Interoperability Council. This guide is not an authorized publication; it is the continuous build for version 4.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-mCODE-ig/ and changes regularly. See the Directory of published versions

Resource Profile: CancerRelatedSurgicalProcedure - Detailed Descriptions

Active as of 2024-12-03 Maturity Level: 3

Definitions for the mcode-cancer-related-surgical-procedure resource profile.

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

0. Procedure
Invariantsmcode-reason-required: One of reasonCode or reasonReference SHALL be present (reasonCode.exists() or reasonReference.exists())
2. Procedure.extension
Must Supporttrue
SlicingThis element introduces a set of slices on Procedure.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Procedure.extension:treatmentIntent
    Slice NametreatmentIntent
    Control0..1
    TypeExtension(Procedure Intent Extension) (Extension Type: CodeableConcept)
    Must Supporttrue
    6. Procedure.code
    BindingUnless not suitable, these codes SHALL be taken from Cancer-Related Surgical Procedure Value Set
    (extensible to http://hl7.org/fhir/us/mcode/ValueSet/mcode-cancer-related-surgical-procedure-vs)
    8. Procedure.subject
    Definition

    The patient on whom the procedure was performed

    10. Procedure.reasonCode
    BindingUnless not suitable, these codes SHALL be taken from Cancer Disorder Value Set
    (extensible to http://hl7.org/fhir/us/mcode/ValueSet/mcode-cancer-disorder-vs)
    Must Supporttrue
    12. Procedure.reasonReference
    TypeReference(US Core Condition Problems and Health Concerns Profile)
    Must Supporttrue
    14. Procedure.bodySite
    Must Supporttrue
    16. Procedure.bodySite.extension
    Must Supporttrue
    18. Procedure.bodySite.extension:locationQualifier
    Slice NamelocationQualifier
    Definition

    General location qualifier (excluding laterality) for this bodySite

    ShortGeneral location qualifier (excluding laterality) for this bodySite
    Control0..*
    TypeExtension(Body Location Qualifier Extension) (Extension Type: CodeableConcept)
    Must Supporttrue
    20. Procedure.bodySite.extension:lateralityQualifier
    Slice NamelateralityQualifier
    Definition

    Laterality qualifier for this bodySite

    ShortLaterality qualifier for this bodySite
    Control0..1
    TypeExtension(Laterality Qualifier Extension) (Extension Type: CodeableConcept)
    Must Supporttrue

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

    0. Procedure
    Definition

    -


    An action that is or was performed on or for a patient. This can be a physical intervention like an operation, or less invasive like long term services, counseling, or hypnotherapy.

    ShortAn action that is being or was performed on a patient
    Comments

    -

    Control0..*
    Is Modifierfalse
    Must Supportfalse
    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())
    us-core-7: Performed SHALL be present if the status is 'completed' or 'in-progress' ((status='completed' or status='in-progress') implies performed.exists())
    mcode-reason-required: One of reasonCode or reasonReference SHALL be present (reasonCode.exists() or reasonReference.exists())
    2. Procedure.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. Procedure.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.

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

      The purpose of a treatment, medication, or procedure.

      ShortProcedure Intent Extension
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Procedure Intent Extension) (Extension Type: CodeableConcept)
      Is Modifierfalse
      Must Supporttrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      8. Procedure.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())
      10. Procedure.status
      Definition

      A code specifying the state of the procedure. Generally, this will be the in-progress or completed state.

      Short(USCDI) preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknownpreparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown
      Comments

      The "unknown" code is not to be used to convey other statuses. The "unknown" code should be used when one of the statuses applies, but the authoring system doesn't know the current state of the procedure.

      This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

      Control1..1
      This element is affected by the following invariants: us-core-7
      BindingThe codes SHALL be taken from EventStatushttp://hl7.org/fhir/ValueSet/event-status|4.0.1
      (required to http://hl7.org/fhir/ValueSet/event-status)
      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
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. Procedure.code
      Definition

      The specific procedure that is performed. Use text if the exact nature of the procedure cannot be coded (e.g. "Laparoscopic Appendectomy").

      Short(USCDI) Identification of the procedureIdentification of the procedure
      Control10..1
      BindingUnless not suitable, these codes SHALL be taken from For example codes, see Cancer-Related Surgical Procedure Value Sethttp://hl7.org/fhir/ValueSet/procedure-code
      (extensible to http://hl7.org/fhir/us/mcode/ValueSet/mcode-cancer-related-surgical-procedure-vs)
      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Requirements

      0..1 to account for primarily narrative only resources.

      Alternate Namestype
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      14. Procedure.subject
      Definition

      The patient on whom the procedure was performed


      The person, animal or group on which the procedure was performed.

      Short(USCDI) Who the procedure was performed onWho the procedure was performed on
      Control1..1
      TypeReference(US Core Patient Profile, Patient, Group)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Alternate Namespatient
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      16. Procedure.performed[x]
      Definition

      Estimated or actual date, date-time, period, or age when the procedure was performed. Allows a period to support complex procedures that span more than one date, and also allows for the length of the procedure to be captured.

      Short(USCDI) When the procedure was performedWhen the procedure was performed
      Comments

      Age is generally used when the patient reports an age at which the procedure was performed. Range is generally used when the patient reports an age range when the procedure was performed, such as sometime between 20-25 years old. dateTime supports a range of precision due to some procedures being reported as past procedures that might not have millisecond precision while other procedures performed and documented during the encounter might have more precise UTC timestamps with timezone.

      Control0..1
      This element is affected by the following invariants: us-core-7
      TypeChoice of: dateTime, Period, string, Age, Range
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Must Support TypesdateTime
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      18. Procedure.reasonCode
      Definition

      The coded reason why the procedure was performed. This may be a coded entity of some type, or may simply be present as text.

      ShortCoded reason procedure performed
      Comments

      Use Procedure.reasonCode when a code sufficiently describes the reason. Use Procedure.reasonReference when referencing a resource, which allows more information to be conveyed, such as onset date. Procedure.reasonCode and Procedure.reasonReference are not meant to be duplicative. For a single reason, either Procedure.reasonCode or Procedure.reasonReference can be used. Procedure.reasonCode may be a summary code, or Procedure.reasonReference may be used to reference a very precise definition of the reason using Condition | Observation | Procedure | DiagnosticReport | DocumentReference. Both Procedure.reasonCode and Procedure.reasonReference can be used if they are describing different reasons for the procedure.

      Control0..*
      BindingUnless not suitable, these codes SHALL be taken from For example codes, see Cancer Disorder Value Sethttp://hl7.org/fhir/ValueSet/procedure-reason
      (extensible to http://hl7.org/fhir/us/mcode/ValueSet/mcode-cancer-disorder-vs)
      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      20. Procedure.reasonReference
      Definition

      The justification of why the procedure was performed.

      ShortThe justification that the procedure was performed
      Comments

      It is possible for a procedure to be a reason (such as C-Section) for another procedure (such as an epidural). Other examples include endoscopy for dilatation and biopsy (a combination of diagnostic and therapeutic use). Use Procedure.reasonCode when a code sufficiently describes the reason. Use Procedure.reasonReference when referencing a resource, which allows more information to be conveyed, such as onset date. Procedure.reasonCode and Procedure.reasonReference are not meant to be duplicative. For a single reason, either Procedure.reasonCode or Procedure.reasonReference can be used. Procedure.reasonCode may be a summary code, or Procedure.reasonReference may be used to reference a very precise definition of the reason using Condition | Observation | Procedure | DiagnosticReport | DocumentReference. Both Procedure.reasonCode and Procedure.reasonReference can be used if they are describing different reasons for the procedure.

      Control0..*
      TypeReference(US Core Condition Problems and Health Concerns Profile, Condition, Observation, Procedure, DiagnosticReport, DocumentReference)
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. Procedure.bodySite
      Definition

      Detailed and structured anatomical location information. Multiple locations are allowed - e.g. multiple punch biopsies of a lesion.

      ShortTarget body sites
      Comments

      If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension procedure-targetbodystructure.

      Control0..*
      BindingFor example codes, see SNOMEDCTBodyStructureshttp://hl7.org/fhir/ValueSet/body-site
      (example to http://hl7.org/fhir/ValueSet/body-site)

      Codes describing anatomical locations. May include laterality.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. Procedure.bodySite.extension
      Definition

      An Extension


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

      ShortExtensionAdditional content defined by implementations
      Comments

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

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

        General location qualifier (excluding laterality) for this bodySite

        ShortGeneral location qualifier (excluding laterality) for this bodySite
        Control0..*
        TypeExtension(Body Location Qualifier Extension) (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())
        28. Procedure.bodySite.extension:lateralityQualifier
        Slice NamelateralityQualifier
        Definition

        Laterality qualifier for this bodySite

        ShortLaterality qualifier for this bodySite
        Control0..1
        TypeExtension(Laterality Qualifier Extension) (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())

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

        0. Procedure
        Definition

        -

        ShortAn action that is being or was performed on a patient
        Comments

        -

        Control0..*
        Is Modifierfalse
        Must Supportfalse
        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())
        us-core-7: Performed SHALL be present if the status is 'completed' or 'in-progress' ((status='completed' or status='in-progress') implies performed.exists())
        mcode-reason-required: One of reasonCode or reasonReference SHALL be present (reasonCode.exists() or reasonReference.exists())
        2. Procedure.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. Procedure.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. Procedure.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. Procedure.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. Procedure.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. Procedure.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. Procedure.extension
        Definition

        An Extension

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

          The purpose of a treatment, medication, or procedure.

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

          Business identifiers assigned to this procedure by the performer or other systems which remain constant as the resource is updated and is propagated from server to server.

          ShortExternal Identifiers for this procedure
          Comments

          This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and Person resource instances might share the same social insurance number.

          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..*
          TypeIdentifier
          Is Modifierfalse
          Summarytrue
          Requirements

          Allows identification of the procedure as it is known by various participating systems and in a way that remains consistent across servers.

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

          The URL pointing to a FHIR-defined protocol, guideline, order set or other definition that is adhered to in whole or in part by this Procedure.

          ShortInstantiates FHIR protocol or definition
          Control0..*
          Typecanonical(PlanDefinition, ActivityDefinition, Measure, OperationDefinition, Questionnaire)
          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()))
          24. Procedure.instantiatesUri
          Definition

          The URL pointing to an externally maintained protocol, guideline, order set or other definition that is adhered to in whole or in part by this Procedure.

          ShortInstantiates external protocol or definition
          Comments

          This might be an HTML page, PDF, etc. or could just be a non-resolvable URI identifier.

          Control0..*
          Typeuri
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          26. Procedure.basedOn
          Definition

          A reference to a resource that contains details of the request for this procedure.

          Short(USCDI) A request for this procedure
          Control0..*
          TypeReference(US Core CarePlan Profile, US Core ServiceRequest Profile)
          Is Modifierfalse
          Must Supportfalse
          Summarytrue
          Alternate Namesfulfills
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          28. Procedure.partOf
          Definition

          A larger event of which this particular procedure is a component or step.

          ShortPart of referenced event
          Comments

          The MedicationAdministration resource has a partOf reference to Procedure, but this is not a circular reference. For example, the anesthesia MedicationAdministration is part of the surgical Procedure (MedicationAdministration.partOf = Procedure). For example, the procedure to insert the IV port for an IV medication administration is part of the medication administration (Procedure.partOf = MedicationAdministration).

          Control0..*
          TypeReference(Procedure, Observation, MedicationAdministration)
          Is Modifierfalse
          Summarytrue
          Alternate Namescontainer
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. Procedure.status
          Definition

          A code specifying the state of the procedure. Generally, this will be the in-progress or completed state.

          Short(USCDI) preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown
          Comments

          The "unknown" code is not to be used to convey other statuses. The "unknown" code should be used when one of the statuses applies, but the authoring system doesn't know the current state of the procedure.

          This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

          Control1..1
          This element is affected by the following invariants: us-core-7
          BindingThe codes SHALL be taken from EventStatus
          (required to http://hl7.org/fhir/ValueSet/event-status)
          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
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. Procedure.statusReason
          Definition

          Captures the reason for the current state of the procedure.

          ShortReason for current status
          Comments

          This is generally only used for "exception" statuses such as "not-done", "suspended" or "aborted". The reason for performing the event at all is captured in reasonCode, not here.

          Control0..1
          BindingFor example codes, see ProcedureNotPerformedReason(SNOMED-CT)
          (example to http://hl7.org/fhir/ValueSet/procedure-not-performed-reason)

          A code that identifies the reason a procedure was not performed.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Alternate NamesSuspended Reason, Cancelled Reason
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          34. Procedure.category
          Definition

          A code that classifies the procedure for searching, sorting and display purposes (e.g. "Surgical Procedure").

          ShortClassification of the procedure
          Control0..1
          BindingFor example codes, see ProcedureCategoryCodes(SNOMEDCT)
          (example to http://hl7.org/fhir/ValueSet/procedure-category)

          A code that classifies a procedure for searching, sorting and display purposes.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          36. Procedure.code
          Definition

          The specific procedure that is performed. Use text if the exact nature of the procedure cannot be coded (e.g. "Laparoscopic Appendectomy").

          Short(USCDI) Identification of the procedure
          Control1..1
          BindingUnless not suitable, these codes SHALL be taken from Cancer-Related Surgical Procedure Value Set
          (extensible to http://hl7.org/fhir/us/mcode/ValueSet/mcode-cancer-related-surgical-procedure-vs)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          0..1 to account for primarily narrative only resources.

          Alternate Namestype
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. Procedure.subject
          Definition

          The patient on whom the procedure was performed

          Short(USCDI) Who the procedure was performed on
          Control1..1
          TypeReference(US Core Patient Profile)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Alternate Namespatient
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. Procedure.encounter
          Definition

          The Encounter during which this Procedure was created or performed or to which the creation of this record is tightly associated.

          ShortEncounter created as part of
          Comments

          This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter.

          Control0..1
          TypeReference(Encounter)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          42. Procedure.performed[x]
          Definition

          Estimated or actual date, date-time, period, or age when the procedure was performed. Allows a period to support complex procedures that span more than one date, and also allows for the length of the procedure to be captured.

          Short(USCDI) When the procedure was performed
          Comments

          Age is generally used when the patient reports an age at which the procedure was performed. Range is generally used when the patient reports an age range when the procedure was performed, such as sometime between 20-25 years old. dateTime supports a range of precision due to some procedures being reported as past procedures that might not have millisecond precision while other procedures performed and documented during the encounter might have more precise UTC timestamps with timezone.

          Control0..1
          This element is affected by the following invariants: us-core-7
          TypeChoice of: dateTime, Period, string, Age, Range
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Must Support TypesdateTime
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          44. Procedure.recorder
          Definition

          Individual who recorded the record and takes responsibility for its content.

          ShortWho recorded the procedure
          Control0..1
          TypeReference(Patient, RelatedPerson, Practitioner, PractitionerRole)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. Procedure.asserter
          Definition

          Individual who is making the procedure statement.

          ShortPerson who asserts this procedure
          Control0..1
          TypeReference(Patient, RelatedPerson, Practitioner, PractitionerRole)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          48. Procedure.performer
          Definition

          Limited to "real" people rather than equipment.

          ShortThe people who performed the procedure
          Control0..*
          TypeBackboneElement
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          50. Procedure.performer.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. Procedure.performer.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())
          54. Procedure.performer.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())
          56. Procedure.performer.function
          Definition

          Distinguishes the type of involvement of the performer in the procedure. For example, surgeon, anaesthetist, endoscopist.

          ShortType of performance
          Control0..1
          BindingFor example codes, see ProcedurePerformerRoleCodes
          (example to http://hl7.org/fhir/ValueSet/performer-role)

          A code that identifies the role of a performer of the procedure.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Allows disambiguation of the types of involvement of different performers.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          58. Procedure.performer.actor
          Definition

          The practitioner who was involved in the procedure.

          ShortThe reference to the practitioner
          Control1..1
          TypeReference(Practitioner, PractitionerRole, Organization, Patient, RelatedPerson, Device)
          Is Modifierfalse
          Summarytrue
          Requirements

          A reference to Device supports use cases, such as pacemakers.

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

          The organization the device or practitioner was acting on behalf of.

          ShortOrganization the device or practitioner was acting for
          Control0..1
          TypeReference(Organization)
          Is Modifierfalse
          Summaryfalse
          Requirements

          Practitioners and Devices can be associated with multiple organizations. This element indicates which organization they were acting on behalf of when performing the action.

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

          The location where the procedure actually happened. E.g. a newborn at home, a tracheostomy at a restaurant.

          ShortWhere the procedure happened
          Control0..1
          TypeReference(Location)
          Is Modifierfalse
          Summarytrue
          Requirements

          Ties a procedure to where the records are likely kept.

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

          The coded reason why the procedure was performed. This may be a coded entity of some type, or may simply be present as text.

          ShortCoded reason procedure performed
          Comments

          Use Procedure.reasonCode when a code sufficiently describes the reason. Use Procedure.reasonReference when referencing a resource, which allows more information to be conveyed, such as onset date. Procedure.reasonCode and Procedure.reasonReference are not meant to be duplicative. For a single reason, either Procedure.reasonCode or Procedure.reasonReference can be used. Procedure.reasonCode may be a summary code, or Procedure.reasonReference may be used to reference a very precise definition of the reason using Condition | Observation | Procedure | DiagnosticReport | DocumentReference. Both Procedure.reasonCode and Procedure.reasonReference can be used if they are describing different reasons for the procedure.

          Control0..*
          BindingUnless not suitable, these codes SHALL be taken from Cancer Disorder Value Set
          (extensible to http://hl7.org/fhir/us/mcode/ValueSet/mcode-cancer-disorder-vs)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          66. Procedure.reasonReference
          Definition

          The justification of why the procedure was performed.

          ShortThe justification that the procedure was performed
          Comments

          It is possible for a procedure to be a reason (such as C-Section) for another procedure (such as an epidural). Other examples include endoscopy for dilatation and biopsy (a combination of diagnostic and therapeutic use). Use Procedure.reasonCode when a code sufficiently describes the reason. Use Procedure.reasonReference when referencing a resource, which allows more information to be conveyed, such as onset date. Procedure.reasonCode and Procedure.reasonReference are not meant to be duplicative. For a single reason, either Procedure.reasonCode or Procedure.reasonReference can be used. Procedure.reasonCode may be a summary code, or Procedure.reasonReference may be used to reference a very precise definition of the reason using Condition | Observation | Procedure | DiagnosticReport | DocumentReference. Both Procedure.reasonCode and Procedure.reasonReference can be used if they are describing different reasons for the procedure.

          Control0..*
          TypeReference(US Core Condition Problems and Health Concerns Profile)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          68. Procedure.bodySite
          Definition

          Detailed and structured anatomical location information. Multiple locations are allowed - e.g. multiple punch biopsies of a lesion.

          ShortTarget body sites
          Comments

          If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension procedure-targetbodystructure.

          Control0..*
          BindingFor example codes, see SNOMEDCTBodyStructures
          (example to http://hl7.org/fhir/ValueSet/body-site)

          Codes describing anatomical locations. May include laterality.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          70. Procedure.bodySite.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
          72. Procedure.bodySite.extension
          Definition

          An Extension

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

            General location qualifier (excluding laterality) for this bodySite

            ShortGeneral location qualifier (excluding laterality) for this bodySite
            Control0..*
            TypeExtension(Body Location Qualifier Extension) (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())
            76. Procedure.bodySite.extension:lateralityQualifier
            Slice NamelateralityQualifier
            Definition

            Laterality qualifier for this bodySite

            ShortLaterality qualifier for this bodySite
            Control0..1
            TypeExtension(Laterality Qualifier Extension) (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())
            78. Procedure.bodySite.coding
            Definition

            A reference to a code defined by a terminology system.

            ShortCode defined by a terminology system
            Comments

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

            Control0..*
            TypeCoding
            Is Modifierfalse
            Summarytrue
            Requirements

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

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            80. Procedure.bodySite.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()))
            82. Procedure.outcome
            Definition

            The outcome of the procedure - did it resolve the reasons for the procedure being performed?

            ShortThe result of procedure
            Comments

            If outcome contains narrative text only, it can be captured using the CodeableConcept.text.

            Control0..1
            BindingFor example codes, see ProcedureOutcomeCodes(SNOMEDCT)
            (example to http://hl7.org/fhir/ValueSet/procedure-outcome)

            An outcome of a procedure - whether it was resolved or otherwise.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            84. Procedure.report
            Definition

            This could be a histology result, pathology report, surgical report, etc.

            ShortAny report resulting from the procedure
            Comments

            There could potentially be multiple reports - e.g. if this was a procedure which took multiple biopsies resulting in a number of anatomical pathology reports.

            Control0..*
            TypeReference(DiagnosticReport, DocumentReference, Composition)
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            86. Procedure.complication
            Definition

            Any complications that occurred during the procedure, or in the immediate post-performance period. These are generally tracked separately from the notes, which will typically describe the procedure itself rather than any 'post procedure' issues.

            ShortComplication following the procedure
            Comments

            If complications are only expressed by the narrative text, they can be captured using the CodeableConcept.text.

            Control0..*
            BindingFor example codes, see Condition/Problem/DiagnosisCodes
            (example to http://hl7.org/fhir/ValueSet/condition-code)

            Codes describing complications that resulted from a procedure.

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

            Any complications that occurred during the procedure, or in the immediate post-performance period.

            ShortA condition that is a result of the procedure
            Control0..*
            TypeReference(Condition)
            Is Modifierfalse
            Summaryfalse
            Requirements

            This is used to document a condition that is a result of the procedure, not the condition that was the reason for the procedure.

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

            If the procedure required specific follow up - e.g. removal of sutures. The follow up may be represented as a simple note or could potentially be more complex, in which case the CarePlan resource can be used.

            ShortInstructions for follow up
            Control0..*
            BindingFor example codes, see ProcedureFollowUpCodes(SNOMEDCT)
            (example to http://hl7.org/fhir/ValueSet/procedure-followup)

            Specific follow up required for a procedure e.g. removal of sutures.

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

            Any other notes and comments about the procedure.

            ShortAdditional information about the procedure
            Control0..*
            TypeAnnotation
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            94. Procedure.focalDevice
            Definition

            A device that is implanted, removed or otherwise manipulated (calibration, battery replacement, fitting a prosthesis, attaching a wound-vac, etc.) as a focal portion of the Procedure.

            ShortManipulated, implanted, or removed device
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            96. Procedure.focalDevice.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
            98. Procedure.focalDevice.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())
            100. Procedure.focalDevice.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())
            102. Procedure.focalDevice.action
            Definition

            The kind of change that happened to the device during the procedure.

            ShortKind of change to device
            Control0..1
            BindingThe codes SHOULD be taken from ProcedureDeviceActionCodes
            (preferred to http://hl7.org/fhir/ValueSet/device-action)

            A kind of change that happened to the device during the procedure.

            TypeCodeableConcept
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            104. Procedure.focalDevice.manipulated
            Definition

            The device that was manipulated (changed) during the procedure.

            ShortDevice that was changed
            Control1..1
            TypeReference(Device)
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            106. Procedure.usedReference
            Definition

            Identifies medications, devices and any other substance used as part of the procedure.

            ShortItems used during procedure
            Comments

            For devices actually implanted or removed, use Procedure.device.

            Control0..*
            TypeReference(Device, Medication, Substance)
            Is Modifierfalse
            Summaryfalse
            Requirements

            Used for tracking contamination, etc.

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

            Identifies coded items that were used as part of the procedure.

            ShortCoded items used during the procedure
            Comments

            For devices actually implanted or removed, use Procedure.device.

            Control0..*
            BindingFor example codes, see FHIRDeviceTypes
            (example to http://hl7.org/fhir/ValueSet/device-kind)

            Codes describing items used during a procedure.

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