HL7 Czech Base and Core FHIR IG
1.0.0 - draft Czechia flag

HL7 Czech Base and Core FHIR IG, published by HL7 Czech Republic. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7-cz/cz-core/ and changes regularly. See the Directory of published versions

Resource Profile: Device Use Statement (CZ core) - Detailed Descriptions

Active as of 2026-06-18

Definitions for the deviceUseStatement-cz-core resource profile

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

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.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.

ShortDevice usage descriptionText 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()))
6. 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.

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.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 8. DeviceUseStatement.extension:bodySite
    Slice NamebodySite
    Definition

    Record details about the anatomical location of a specimen or body part. This resource may be used when a coded concept does not provide the necessary detail needed for the use case.

    ShortTarget anatomic location or structure
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(BodyStructure Reference) (Extension Type: Reference(BodyStructure))
    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())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    10. DeviceUseStatement.extension: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..0*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on DeviceUseStatement.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 12. DeviceUseStatement.extension:bodySite.url
      Definition

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

      Shortidentifies the meaning of the extension
      Comments

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

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://hl7.org/fhir/StructureDefinition/bodySite
      14. DeviceUseStatement.extension:bodySite.value[x]
      Definition

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

      ShortValue of extension
      Control10..1
      TypeReference(Body Structure (CZ core)), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      16. 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())
      18. 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()))
      20. DeviceUseStatement.subject
      Definition

      The patient using the device.


      The patient who used the device.

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

      Who reported the device was being used by the patient.

      ShortWho made the statement
      Control0..1
      TypeReference(Patient (CZ core), Practitioner Role (CZ core), Practitioner (CZ core), Related Person (CZ core), Patient, Practitioner, PractitionerRole, RelatedPerson)
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. DeviceUseStatement.device
      Definition

      The details of the device used.

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

      Reason or justification for the use of the device.

      ShortWhy is used (code)Why 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()))
      28. DeviceUseStatement.reasonReference
      Definition

      Indicates another resource whose existence justifies this DeviceUseStatement.

      ShortWhy is used (details)Why was DeviceUseStatement performed?
      Control0..*
      TypeReference(Condition (CZ core), Observation: Medical Test Result (CZ core), Media, DiagnosticReport (CZ core), DocumentReference, 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()))
      30. DeviceUseStatement.bodySite
      Definition

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

      ShortTarget body site
      Comments

      If the specimen.type conveys information about the site the specimen has been collected from, then, if the bodySite is present, it shall be coherent with the type

      Control0..1
      BindingThe codes SHOULD be taken from For example codes, see SNOMEDCTBodyStructureshttp://hl7.org/fhir/ValueSet/body-site|4.0.1
      (preferred to http://hl7.org/fhir/ValueSet/body-site)
      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()))

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

      0. DeviceUseStatement
      2. DeviceUseStatement.text
      ShortDevice usage description
      4. DeviceUseStatement.extension
      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:bodySite
        Slice NamebodySite
        Control0..1
        TypeExtension(BodyStructure Reference) (Extension Type: Reference(BodyStructure))
        8. DeviceUseStatement.extension:bodySite.value[x]
        TypeReference(Body Structure (CZ core))
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        10. DeviceUseStatement.subject
        Definition

        The patient using the device.

        TypeReference(Patient (CZ core), Group)
        12. DeviceUseStatement.source
        TypeReference(Patient (CZ core), Practitioner Role (CZ core), Practitioner (CZ core), Related Person (CZ core))
        14. DeviceUseStatement.device
        TypeReference(Medical Device (CZ core))
        16. DeviceUseStatement.reasonCode
        ShortWhy is used (code)
        18. DeviceUseStatement.reasonReference
        ShortWhy is used (details)
        TypeReference(Condition (CZ core), Observation: Medical Test Result (CZ core), Media, DiagnosticReport (CZ core), DocumentReference)
        20. DeviceUseStatement.bodySite
        Comments

        If the specimen.type conveys information about the site the specimen has been collected from, then, if the bodySite is present, it shall be coherent with the type

        BindingThe codes SHOULD be taken from SNOMEDCTBodyStructures
        (preferred to http://hl7.org/fhir/ValueSet/body-site)

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

        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|4.0.1)

        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.

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

          Record details about the anatomical location of a specimen or body part. This resource may be used when a coded concept does not provide the necessary detail needed for the use case.

          ShortTarget anatomic location or structure
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(BodyStructure Reference) (Extension Type: Reference(BodyStructure))
          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())
          18. DeviceUseStatement.extension: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
          20. DeviceUseStatement.extension:bodySite.extension
          Definition

          An Extension

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

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

            Shortidentifies the meaning of the extension
            Comments

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

            Control1..1
            Typeuri
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Fixed Valuehttp://hl7.org/fhir/StructureDefinition/bodySite
            24. DeviceUseStatement.extension:bodySite.value[x]
            Definition

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

            ShortValue of extension
            Control1..1
            TypeReference(Body Structure (CZ core))
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            26. 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())
            28. 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()))
            30. 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()))
            32. 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()))
            34. DeviceUseStatement.subject
            Definition

            The patient using the device.

            ShortPatient using device
            Control1..1
            TypeReference(Patient (CZ core), Group)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            36. 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()))
            38. 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()))
            40. 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()))
            42. DeviceUseStatement.source
            Definition

            Who reported the device was being used by the patient.

            ShortWho made the statement
            Control0..1
            TypeReference(Patient (CZ core), Practitioner Role (CZ core), Practitioner (CZ core), Related Person (CZ core))
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            44. DeviceUseStatement.device
            Definition

            The details of the device used.

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

            Reason or justification for the use of the device.

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

            Indicates another resource whose existence justifies this DeviceUseStatement.

            ShortWhy is used (details)
            Control0..*
            TypeReference(Condition (CZ core), Observation: Medical Test Result (CZ core), Media, DiagnosticReport (CZ core), DocumentReference)
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            50. DeviceUseStatement.bodySite
            Definition

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

            ShortTarget body site
            Comments

            If the specimen.type conveys information about the site the specimen has been collected from, then, if the bodySite is present, it shall be coherent with the type

            Control0..1
            BindingThe codes SHOULD be taken from SNOMEDCTBodyStructures
            (preferred to http://hl7.org/fhir/ValueSet/body-site)
            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()))
            52. 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()))