eHealth Infrastructure
3.3.0 - ci-build Denmark flag

eHealth Infrastructure, published by Den telemedicinske infrastruktur (eHealth Infrastructure). This guide is not an authorized publication; it is the continuous build for version 3.3.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/fut-infrastructure/implementation-guide/ and changes regularly. See the Directory of published versions

Resource Profile: ehealth-deviceusestatement - Detailed Descriptions

Active as of 2024-12-20

Definitions for the ehealth-deviceusestatement resource profile.

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

0. DeviceUseStatement
2. DeviceUseStatement.extension
Control1..?
SlicingThis element introduces a set of slices on DeviceUseStatement.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. DeviceUseStatement.extension:Context
    Slice NameContext
    Control1..1
    TypeExtension(Context) (Extension Type: Reference(ehealth-careplan)referenced)
    6. DeviceUseStatement.subject
    TypeReference(ehealth-patient)referenced
    8. DeviceUseStatement.source
    TypeReference(ehealth-patient, ehealth-practitioner, ehealth-relatedperson)referenced
    10. DeviceUseStatement.device
    TypeReference(ehealth-device)
    12. DeviceUseStatement.note
    14. DeviceUseStatement.note.author[x]
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    SlicingThis element introduces a set of slices on DeviceUseStatement.note.author[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • type @ $this
    • 16. DeviceUseStatement.note.author[x]:authorReference
      Slice NameauthorReference
      Control0..1
      TypeReference(ehealth-practitioner, ehealth-patient, ehealth-relatedperson)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      18. DeviceUseStatement.note.author[x]:authorString
      Slice NameauthorString
      Control0..1
      Typestring
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension

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

      0. DeviceUseStatement
      Definition

      A record of a device being used by a patient where the record is the result of a report from the patient or another clinician.

      ShortRecord of use of a device
      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())
      2. DeviceUseStatement.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. DeviceUseStatement.extension
      Definition

      An Extension


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

      ShortExtensionAdditional content defined by implementations
      Comments

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

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

        The careplan context for the device use

        ShortThe careplan context for the device use
        Control1..1
        This element is affected by the following invariants: ele-1
        TypeExtension(Context) (Extension Type: Reference(ehealth-careplan)referenced)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        8. DeviceUseStatement.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. DeviceUseStatement.status
        Definition

        A code representing the patient or other source's judgment about the state of the device used that this statement is about. Generally this will be active or completed.

        Shortactive | completed | entered-in-error +
        Comments

        DeviceUseStatment is a statement at a point in time. The status is only representative at the point when it was asserted. The value set for contains codes that assert the status of the use by the patient (for example, stopped or on hold) as well as codes that assert the status of the resource itself (for example, entered in error).

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

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

        A coded concept indicating the current status of the Device Usage.

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

        The patient who used the device.

        ShortPatient using device
        Control1..1
        TypeReference(ehealth-patient, Patient, Group)referenced
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        14. DeviceUseStatement.source
        Definition

        Who reported the device was being used by the patient.

        ShortWho made the statement
        Control0..1
        TypeReference(ehealth-patient, ehealth-practitioner, ehealth-relatedperson, Patient, Practitioner, PractitionerRole, RelatedPerson)referenced
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        16. DeviceUseStatement.device
        Definition

        The details of the device used.

        ShortReference to device used
        Control1..1
        TypeReference(ehealth-device, Device)
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

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

        0. DeviceUseStatement
        Definition

        A record of a device being used by a patient where the record is the result of a report from the patient or another clinician.

        ShortRecord of use of a device
        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())
        2. DeviceUseStatement.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. DeviceUseStatement.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. DeviceUseStatement.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. DeviceUseStatement.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. DeviceUseStatement.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. DeviceUseStatement.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. DeviceUseStatement.extension
        Definition

        An Extension

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

          The careplan context for the device use

          ShortThe careplan context for the device use
          Control1..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Context) (Extension Type: Reference(ehealth-careplan)referenced)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          18. DeviceUseStatement.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. DeviceUseStatement.identifier
          Definition

          An external identifier for this statement such as an IRI.

          ShortExternal identifier for this record
          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..*
          TypeIdentifier
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          22. DeviceUseStatement.basedOn
          Definition

          A plan, proposal or order that is fulfilled in whole or in part by this DeviceUseStatement.

          ShortFulfills plan, proposal or order
          Control0..*
          TypeReference(ServiceRequest)
          Is Modifierfalse
          Summarytrue
          Requirements

          Allows tracing of authorization for the DeviceUseStatement and tracking whether proposals/recommendations were acted upon.

          Alternate Namesfulfills
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          24. DeviceUseStatement.status
          Definition

          A code representing the patient or other source's judgment about the state of the device used that this statement is about. Generally this will be active or completed.

          Shortactive | completed | entered-in-error +
          Comments

          DeviceUseStatment is a statement at a point in time. The status is only representative at the point when it was asserted. The value set for contains codes that assert the status of the use by the patient (for example, stopped or on hold) as well as codes that assert the status of the resource itself (for example, entered in error).

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

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

          A coded concept indicating the current status of the Device Usage.

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

          The patient who used the device.

          ShortPatient using device
          Control1..1
          TypeReference(ehealth-patient)referenced
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          28. DeviceUseStatement.derivedFrom
          Definition

          Allows linking the DeviceUseStatement to the underlying Request, or to other information that supports or is used to derive the DeviceUseStatement.

          ShortSupporting information
          Comments

          The most common use cases for deriving a DeviceUseStatement comes from creating it from a request or from an observation or a claim. it should be noted that the amount of information that is available varies from the type resource that you derive the DeviceUseStatement from.

          Control0..*
          TypeReference(ServiceRequest, Procedure, Claim, Observation, QuestionnaireResponse, DocumentReference)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. DeviceUseStatement.timing[x]
          Definition

          How often the device was used.

          ShortHow often the device was used
          Control0..1
          TypeChoice of: Timing, Period, dateTime
          [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
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. DeviceUseStatement.recordedOn
          Definition

          The time at which the statement was made/recorded.

          ShortWhen statement was recorded
          Control0..1
          TypedateTime
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          34. DeviceUseStatement.source
          Definition

          Who reported the device was being used by the patient.

          ShortWho made the statement
          Control0..1
          TypeReference(ehealth-patient, ehealth-practitioner, ehealth-relatedperson)referenced
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          36. DeviceUseStatement.device
          Definition

          The details of the device used.

          ShortReference to device used
          Control1..1
          TypeReference(ehealth-device)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. DeviceUseStatement.reasonCode
          Definition

          Reason or justification for the use of the device.

          ShortWhy device was used
          Control0..*
          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. DeviceUseStatement.reasonReference
          Definition

          Indicates another resource whose existence justifies this DeviceUseStatement.

          ShortWhy was DeviceUseStatement performed?
          Control0..*
          TypeReference(Condition, Observation, DiagnosticReport, DocumentReference, Media)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          42. DeviceUseStatement.bodySite
          Definition

          Indicates the anotomic location on the subject's body where the device was used ( i.e. the target).

          ShortTarget body site
          Control0..1
          BindingFor example codes, see SNOMEDCTBodyStructures
          (example to http://hl7.org/fhir/ValueSet/body-site)

          Codes describing anatomical locations. May include laterality.

          TypeCodeableConcept
          Is Modifierfalse
          Summarytrue
          Requirements

          Knowing where the device is targeted is important for tracking if multiple sites are possible. If more information than just a code is required, use the extension http://hl7.org/fhir/StructureDefinition/bodySite.

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

          Details about the device statement that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement.

          ShortAddition details (comments, instructions)
          Control0..*
          TypeAnnotation
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. DeviceUseStatement.note.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
          48. DeviceUseStatement.note.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 DeviceUseStatement.note.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 50. DeviceUseStatement.note.author[x]
            Definition

            The individual responsible for making the annotation.

            ShortIndividual responsible for the annotation
            Comments

            Organization is used when there's no need for specific attribution as to who made the comment.

            Control0..1
            TypeChoice of: Reference(Practitioner, Patient, RelatedPerson, Organization), string
            [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
            Summarytrue
            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 DeviceUseStatement.note.author[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
            • type @ $this
            • 52. DeviceUseStatement.note.author[x]:authorReference
              Slice NameauthorReference
              Definition

              The individual responsible for making the annotation.

              ShortIndividual responsible for the annotation
              Comments

              Organization is used when there's no need for specific attribution as to who made the comment.

              Control0..1
              TypeReference(ehealth-practitioner, ehealth-patient, ehealth-relatedperson)
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Is Modifierfalse
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              54. DeviceUseStatement.note.author[x]:authorString
              Slice NameauthorString
              Definition

              The individual responsible for making the annotation.

              ShortIndividual responsible for the annotation
              Comments

              Organization is used when there's no need for specific attribution as to who made the comment.

              Control0..1
              Typestring
              [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
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              56. DeviceUseStatement.note.time
              Definition

              Indicates when this particular annotation was made.

              ShortWhen the annotation was made
              Control0..1
              TypedateTime
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              58. DeviceUseStatement.note.text
              Definition

              The text of the annotation in markdown format.

              ShortThe annotation - text content (as markdown)
              Control1..1
              Typemarkdown
              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()))