Da Vinci - Coverage Requirements Discovery
2.2.0-snapshot - STU 2.2 Peer Review United States of America flag

Da Vinci - Coverage Requirements Discovery, published by HL7 International / Financial Management. This guide is not an authorized publication; it is the continuous build for version 2.2.0-snapshot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-crd/ and changes regularly. See the Directory of published versions

Resource Profile: CRD Device Request - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 4

Definitions for the profile-devicerequest resource profile

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

0. DeviceRequest
Definition

Represents a request for a patient to employ a medical device. The device may be an implantable device, or an external assistive device, such as a walker.

ShortMedical device request
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. DeviceRequest.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. DeviceRequest.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

Any references found in this resource, with the exception of 'Patient' could potentially be resource-specific and thus transmitted as contained resources.


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
Must Supporttrue
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
6. DeviceRequest.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 DeviceRequest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • value @ value
  • 8. DeviceRequest.extension:Coverage-Information
    Slice NameCoverage-Information
    Definition

    Indicates coverage information.

    ShortCoverage Info
    Control0..*
    This element is affected by the following invariants: ele-1
    TypeExtension(Coverage Information) (Complex Extension)
    Is Modifierfalse
    Must Supporttrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    crd-ci-q1: Questionnaire is only allowed when doc-needed exists (extension.where(url='questionnaire').exists() implies extension.where(url = 'doc-needed').exists())
    crd-ci-q2: If covered is set to 'not-covered', then 'pa-needed' must not exist. (extension.where(url = 'covered' and value = 'not-covered').exists() implies extension.where(url = 'pa-needed').exists().not())
    crd-ci-q3: 'info-needed' SHALL exist if and only if at least one of 'covered', 'pa-needed', or 'doc-needed' is set to 'conditional'. (extension.where((url = 'covered' or url = 'pa-needed' or url = 'doc-needed') and value = 'conditional').count() >= 1 implies extension.where(url = 'info-needed').exists())
    crd-ci-q4: If 'pa-needed' is 'satisfied', 'noauth', or 'not-covered', then 'Doc-purpose' cannot be 'withpa'. (extension.where(url = 'pa-needed' and (value = 'satisfied' or value = 'noauth' or value = 'not-covered')) and extension.where(url = 'doc-purpose').exists() implies extension.where(url = 'doc-purpose').all(value != 'withpa'))
    crd-ci-q5: 'satisfied-pa-id' must exist if and only if 'pa-needed' is set to 'satisfied'. (extension.where(url = 'pa-needed' and value = 'satisfied').exists() = extension.where(url = 'satisfied-pa-id').exists())
    crd-ci-q6: If 'info-needed' is OTH, then reason must be specified (extension.where(url = 'info-needed' and value = 'OTH').exists() implies extension.where(url = 'reason').exists())
    crd-ci-q7: If reason.coding is present and is not from the extensible value set, then reason.text must be present (extension.where(url = 'reason').empty() or extension.where(url = 'reason').value.text.exists() or extension.where(url = 'reason').value.memberOf('http://hl7.org/fhir/us/davinci-crd/ValueSet/coverageAssertionReasons'))
    crd-ci-q8: If doc-purpose is present with a value other than 'conditional', then reason must be present (extension.where(url = 'doc-purpose' and value != 'conditional').exists() implies extension.where(url = 'reason').exists())
    10. DeviceRequest.extension:EncounterCategory
    Slice NameEncounterCategory
    Definition

    A high-level categorization of the type of request

    ShortEncounter Category
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Request Category) (Extension Type: CodeableConcept)
    Is Modifierfalse
    Must Supporttrue
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    12. DeviceRequest.extension:EncounterCategory.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 DeviceRequest.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 14. DeviceRequest.extension:EncounterCategory.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/us/davinci-crd/StructureDefinition/ext-request-category
      16. DeviceRequest.extension:EncounterCategory.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
      Control0..1
      BindingThe codes SHALL be taken from For codes, see ActEncounterCode (3.0.0)
      (required to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode|3.0.0)
      TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      18. DeviceRequest.extension:ServiceCategory
      Slice NameServiceCategory
      Definition

      A high-level categorization of the type of request

      ShortService Category
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Request Category) (Extension Type: CodeableConcept)
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      20. DeviceRequest.extension:ServiceCategory.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 DeviceRequest.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 22. DeviceRequest.extension:ServiceCategory.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/us/davinci-crd/StructureDefinition/ext-request-category
        24. DeviceRequest.extension:ServiceCategory.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
        Control0..1
        BindingThe codes SHALL be taken from For codes, see X12 Service Type
        (required to http://hl7.org/fhir/us/davinci-crd/ValueSet/X12ServiceType)
        TypeCodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        26. DeviceRequest.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. DeviceRequest.identifier
        Definition

        Identifiers assigned to this order by the orderer or by the receiver.

        ShortExternal Request identifier
        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..*
        TypeIdentifier
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        30. DeviceRequest.basedOn
        Definition

        Plan/proposal/order fulfilled by this request.

        ShortWhat request fulfills
        Control0..*
        TypeReference(Resource)
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        32. DeviceRequest.status
        Definition

        The status of the request.

        Shortdraft | active | on-hold | revoked | completed | entered-in-error | unknown
        Comments

        This will be 'draft' when using order-select or an initial order-sign, but may be 'active' or other values for order-sign representing edits to the order or for order-dispatch.


        This element is labeled as a modifier because the status contains the codes cancelled and entered-in-error that mark the request as not currently valid.

        Control10..1
        BindingThe codes SHALL be taken from RequestStatushttp://hl7.org/fhir/ValueSet/request-status|4.0.1
        (required to http://hl7.org/fhir/ValueSet/request-status|4.0.1)

        Codes representing the status of the request.

        Typecode
        Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        ExampleGeneral: draft
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        34. DeviceRequest.intent
        Definition

        Whether the request is a proposal, plan, an original order or a reflex order.

        Shortproposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
        Control1..1
        BindingThe codes SHALL be taken from RequestIntenthttp://hl7.org/fhir/ValueSet/request-intent|4.0.1
        (required to http://hl7.org/fhir/ValueSet/request-intent|4.0.1)

        The kind of diagnostic request.

        Typecode
        Is Modifiertrue because This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request
        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()))
        36. DeviceRequest.code[x]
        Definition

        The details of the device to be used.

        ShortDevice requested
        Control1..1
        BindingUnless not suitable, these codes SHALL be taken from For example codes, see CRD Device Request Codes Value Sethttp://hl7.org/fhir/ValueSet/device-kind|4.0.1
        (extensible to http://hl7.org/fhir/us/davinci-crd/ValueSet/deviceRequest)
        TypeChoice of: Reference(CRD Device, Device), CodeableConcept
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Must Supporttrue
        Must Support TypesNo must-support rules about the choice of types/profiles
        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 DeviceRequest.code[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
        • type @ $this
        • 38. DeviceRequest.code[x]:codeCodeableConcept
          Slice NamecodeCodeableConcept
          Definition

          The details of the device to be used.

          ShortDevice requested
          Control01..1
          BindingFor example codes, see FHIRDeviceTypeshttp://hl7.org/fhir/ValueSet/device-kind|4.0.1
          (example to http://hl7.org/fhir/ValueSet/device-kind|4.0.1)

          Codes for devices that can be requested.

          TypeCodeableConcept, Reference(Device)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. DeviceRequest.code[x]:codeCodeableConcept.extension:BillingOptions
          Slice NameBillingOptions
          Definition

          Identifies billing codes that could potentially be used for this clinical code

          ShortExpected Billing Code(s)
          Comments

          This will typically only be populated if the ordering and performing systems are the same

          Control0..*
          TypeExtension(Billing Options) (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())
          42. DeviceRequest.code[x]:codeReference
          Slice NamecodeReference
          Definition

          The details of the device to be used.

          ShortDevice requested
          Control01..1
          TypeReference(CRD Device, Device), CodeableConcept
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          44. DeviceRequest.parameter
          Definition

          Specific parameters for the ordered item. For example, the prism value for lenses.

          ShortDevice details
          Control0..*
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. DeviceRequest.parameter.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())
          48. DeviceRequest.subject
          Definition

          The patient who will use the device.

          ShortFocus of request
          Control1..1
          TypeReference(CRD Patient, Patient, Group, Location, Device)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          50. DeviceRequest.encounter
          Definition

          An encounter that provides additional context in which this request is made.

          ShortEncounter motivating request
          Comments

          potentially relevant for CRD in some situations.

          Control0..1
          TypeReference(CRD Encounter, Encounter)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          52. DeviceRequest.occurrence[x]
          Definition

          The timing schedule for the use of the device. The Schedule data type allows many different expressions, for example. "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013".

          ShortDesired time or schedule for use
          Control0..1
          TypeChoice of: dateTime, Period, Timing
          [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 TypesNo must-support rules about the choice of types/profiles
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          54. DeviceRequest.authoredOn
          Definition

          When the request transitioned to being actionable.

          ShortWhen recorded
          Control10..1
          TypedateTime
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          56. DeviceRequest.requester
          Definition

          The individual who initiated the request and has responsibility for its activation.

          ShortWho/what is requesting diagnostics
          Control10..1
          TypeReference(CRD Practitioner, HRex PractitionerRole Profile, Device, Practitioner, PractitionerRole, Organization)
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesReference(CRD Practitioner, HRex PractitionerRole Profile)
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          58. DeviceRequest.performer
          Definition

          The desired performer for doing the diagnostic testing.

          ShortRequested Filler
          Control0..1
          TypeReference(CRD Practitioner, HRex PractitionerRole Profile, Practitioner, PractitionerRole, Organization, CareTeam, HealthcareService, Patient, Device, RelatedPerson)
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesReference(CRD Practitioner, HRex PractitionerRole Profile)
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          60. DeviceRequest.reasonCode
          Definition

          Reason or justification for the use of this device.

          ShortCoded Reason for request
          Control0..*
          BindingFor example codes, see Condition/Problem/DiagnosisCodeshttp://hl7.org/fhir/ValueSet/condition-code|4.0.1
          (example to http://hl7.org/fhir/ValueSet/condition-code|4.0.1)

          Diagnosis or problem codes justifying the reason for requesting the device.

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

          Reason or justification for the use of this device.

          ShortLinked Reason for request
          Comments

          Observations SHOULD use US Core profiles when applicable, but not all relevant observations have appropriate US Core profiles (and there are too many to practically list all US Core profiles).

          Control0..*
          TypeReference(US Core Condition Problems and Health Concerns Profile, US Core Condition Encounter Diagnosis Profile, US Core DiagnosticReport Profile for Laboratory Results Reporting, US Core DiagnosticReport Profile for Report and Note Exchange, US Core DocumentReference Profile, Observation, Condition, Observation, DiagnosticReport, DocumentReference)
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          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 foundhere

          0. DeviceRequest
          2. DeviceRequest.contained
          Comments

          Any references found in this resource, with the exception of 'Patient' could potentially be resource-specific and thus transmitted as contained resources.

          Must Supporttrue
          4. DeviceRequest.extension
          SlicingThis element introduces a set of slices on DeviceRequest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • value @ value
          • 6. DeviceRequest.extension:Coverage-Information
            Slice NameCoverage-Information
            ShortCoverage Info
            Control0..*
            TypeExtension(Coverage Information) (Complex Extension)
            Must Supporttrue
            8. DeviceRequest.extension:EncounterCategory
            Slice NameEncounterCategory
            ShortEncounter Category
            Control0..1
            TypeExtension(Request Category) (Extension Type: CodeableConcept)
            Must Supporttrue
            10. DeviceRequest.extension:EncounterCategory.value[x]
            BindingThe codes SHALL be taken from ActEncounterCode (3.0.0)
            (required to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode|3.0.0)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            12. DeviceRequest.extension:ServiceCategory
            Slice NameServiceCategory
            ShortService Category
            Control0..1
            TypeExtension(Request Category) (Extension Type: CodeableConcept)
            Must Supporttrue
            14. DeviceRequest.extension:ServiceCategory.value[x]
            BindingThe codes SHALL be taken from X12 Service Type
            (required to http://hl7.org/fhir/us/davinci-crd/ValueSet/X12ServiceType)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            16. DeviceRequest.identifier
            NoteThis is a business identifier, not a resource identifier (see discussion)
            Must Supporttrue
            18. DeviceRequest.basedOn
            Must Supporttrue
            20. DeviceRequest.status
            Comments

            This will be 'draft' when using order-select or an initial order-sign, but may be 'active' or other values for order-sign representing edits to the order or for order-dispatch.

            Control1..?
            Must Supporttrue
            ExampleGeneral: draft
            22. DeviceRequest.code[x]
            BindingUnless not suitable, these codes SHALL be taken from CRD Device Request Codes Value Set
            (extensible to http://hl7.org/fhir/us/davinci-crd/ValueSet/deviceRequest)
            TypeChoice of: Reference(CRD Device), CodeableConcept
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Must Supporttrue
            Must Support TypesNo must-support rules about the choice of types/profiles
            SlicingThis element introduces a set of slices on DeviceRequest.code[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • type @ $this
            • 24. DeviceRequest.code[x]:codeCodeableConcept
              Slice NamecodeCodeableConcept
              Control0..1
              TypeCodeableConcept
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Must Supporttrue
              26. DeviceRequest.code[x]:codeCodeableConcept.extension:BillingOptions
              Slice NameBillingOptions
              ShortExpected Billing Code(s)
              Control0..*
              TypeExtension(Billing Options) (Extension Type: CodeableConcept)
              Must Supporttrue
              28. DeviceRequest.code[x]:codeReference
              Slice NamecodeReference
              Control0..1
              TypeReference(CRD Device)
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Must Supporttrue
              30. DeviceRequest.parameter
              Must Supporttrue
              32. DeviceRequest.subject
              TypeReference(CRD Patient)
              Must Supporttrue
              34. DeviceRequest.encounter
              Comments

              potentially relevant for CRD in some situations.

              TypeReference(CRD Encounter)
              36. DeviceRequest.occurrence[x]
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Must Supporttrue
              38. DeviceRequest.authoredOn
              Control1..?
              Must Supporttrue
              40. DeviceRequest.requester
              Control1..?
              TypeReference(CRD Practitioner, HRex PractitionerRole Profile)
              Must Supporttrue
              Must Support TypesReference(CRD Practitioner, HRex PractitionerRole Profile)
              42. DeviceRequest.performer
              TypeReference(CRD Practitioner, HRex PractitionerRole Profile)
              Must Supporttrue
              Must Support TypesReference(CRD Practitioner, HRex PractitionerRole Profile)
              44. DeviceRequest.reasonCode
              Must Supporttrue
              46. DeviceRequest.reasonReference
              Comments

              Observations SHOULD use US Core profiles when applicable, but not all relevant observations have appropriate US Core profiles (and there are too many to practically list all US Core profiles).

              TypeReference(US Core Condition Problems and Health Concerns Profile, US Core Condition Encounter Diagnosis Profile, US Core DiagnosticReport Profile for Laboratory Results Reporting, US Core DiagnosticReport Profile for Report and Note Exchange, US Core DocumentReference Profile, Observation)
              Must Supporttrue
              Must Support TypesNo must-support rules about the choice of types/profiles

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

              0. DeviceRequest
              Definition

              Represents a request for a patient to employ a medical device. The device may be an implantable device, or an external assistive device, such as a walker.

              ShortMedical device request
              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. DeviceRequest.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. DeviceRequest.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. DeviceRequest.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. DeviceRequest.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. DeviceRequest.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. DeviceRequest.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

              Any references found in this resource, with the exception of 'Patient' could potentially be resource-specific and thus transmitted as contained resources.

              Control0..*
              TypeResource
              Is Modifierfalse
              Must Supporttrue
              Summaryfalse
              Alternate Namesinline resources, anonymous resources, contained resources
              14. DeviceRequest.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 DeviceRequest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • value @ value
              • 16. DeviceRequest.extension:Coverage-Information
                Slice NameCoverage-Information
                Definition

                Indicates coverage information.

                ShortCoverage Info
                Control0..*
                This element is affected by the following invariants: ele-1
                TypeExtension(Coverage Information) (Complex Extension)
                Is Modifierfalse
                Must Supporttrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                crd-ci-q1: Questionnaire is only allowed when doc-needed exists (extension.where(url='questionnaire').exists() implies extension.where(url = 'doc-needed').exists())
                crd-ci-q2: If covered is set to 'not-covered', then 'pa-needed' must not exist. (extension.where(url = 'covered' and value = 'not-covered').exists() implies extension.where(url = 'pa-needed').exists().not())
                crd-ci-q3: 'info-needed' SHALL exist if and only if at least one of 'covered', 'pa-needed', or 'doc-needed' is set to 'conditional'. (extension.where((url = 'covered' or url = 'pa-needed' or url = 'doc-needed') and value = 'conditional').count() >= 1 implies extension.where(url = 'info-needed').exists())
                crd-ci-q4: If 'pa-needed' is 'satisfied', 'noauth', or 'not-covered', then 'Doc-purpose' cannot be 'withpa'. (extension.where(url = 'pa-needed' and (value = 'satisfied' or value = 'noauth' or value = 'not-covered')) and extension.where(url = 'doc-purpose').exists() implies extension.where(url = 'doc-purpose').all(value != 'withpa'))
                crd-ci-q5: 'satisfied-pa-id' must exist if and only if 'pa-needed' is set to 'satisfied'. (extension.where(url = 'pa-needed' and value = 'satisfied').exists() = extension.where(url = 'satisfied-pa-id').exists())
                crd-ci-q6: If 'info-needed' is OTH, then reason must be specified (extension.where(url = 'info-needed' and value = 'OTH').exists() implies extension.where(url = 'reason').exists())
                crd-ci-q7: If reason.coding is present and is not from the extensible value set, then reason.text must be present (extension.where(url = 'reason').empty() or extension.where(url = 'reason').value.text.exists() or extension.where(url = 'reason').value.memberOf('http://hl7.org/fhir/us/davinci-crd/ValueSet/coverageAssertionReasons'))
                crd-ci-q8: If doc-purpose is present with a value other than 'conditional', then reason must be present (extension.where(url = 'doc-purpose' and value != 'conditional').exists() implies extension.where(url = 'reason').exists())
                18. DeviceRequest.extension:EncounterCategory
                Slice NameEncounterCategory
                Definition

                A high-level categorization of the type of request

                ShortEncounter Category
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(Request Category) (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())
                20. DeviceRequest.extension:EncounterCategory.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
                22. DeviceRequest.extension:EncounterCategory.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 DeviceRequest.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 24. DeviceRequest.extension:EncounterCategory.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/us/davinci-crd/StructureDefinition/ext-request-category
                  26. DeviceRequest.extension:EncounterCategory.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
                  Control0..1
                  BindingThe codes SHALL be taken from ActEncounterCode (3.0.0)
                  (required to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode|3.0.0)
                  TypeCodeableConcept
                  [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()))
                  28. DeviceRequest.extension:ServiceCategory
                  Slice NameServiceCategory
                  Definition

                  A high-level categorization of the type of request

                  ShortService Category
                  Control0..1
                  This element is affected by the following invariants: ele-1
                  TypeExtension(Request Category) (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())
                  30. DeviceRequest.extension:ServiceCategory.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
                  32. DeviceRequest.extension:ServiceCategory.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 DeviceRequest.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 34. DeviceRequest.extension:ServiceCategory.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/us/davinci-crd/StructureDefinition/ext-request-category
                    36. DeviceRequest.extension:ServiceCategory.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
                    Control0..1
                    BindingThe codes SHALL be taken from X12 Service Type
                    (required to http://hl7.org/fhir/us/davinci-crd/ValueSet/X12ServiceType)
                    TypeCodeableConcept
                    [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()))
                    38. DeviceRequest.modifierExtension
                    Definition

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

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

                    ShortExtensions that cannot be ignored
                    Comments

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

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

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

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

                    Identifiers assigned to this order by the orderer or by the receiver.

                    ShortExternal Request identifier
                    NoteThis is a business identifier, not a resource identifier (see discussion)
                    Control0..*
                    TypeIdentifier
                    Is Modifierfalse
                    Must Supporttrue
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    42. DeviceRequest.instantiatesCanonical
                    Definition

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

                    ShortInstantiates FHIR protocol or definition
                    Comments

                    Note: 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 a Person resource instance might share the same social insurance number.

                    Control0..*
                    Typecanonical(ActivityDefinition, PlanDefinition)
                    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()))
                    44. DeviceRequest.instantiatesUri
                    Definition

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

                    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()))
                    46. DeviceRequest.basedOn
                    Definition

                    Plan/proposal/order fulfilled by this request.

                    ShortWhat request fulfills
                    Control0..*
                    TypeReference(Resource)
                    Is Modifierfalse
                    Must Supporttrue
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    48. DeviceRequest.priorRequest
                    Definition

                    The request takes the place of the referenced completed or terminated request(s).

                    ShortWhat request replaces
                    Control0..*
                    TypeReference(Resource)
                    Is Modifierfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    50. DeviceRequest.groupIdentifier
                    Definition

                    Composite request this is part of.

                    ShortIdentifier of composite request
                    Control0..1
                    TypeIdentifier
                    Is Modifierfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    52. DeviceRequest.status
                    Definition

                    The status of the request.

                    Shortdraft | active | on-hold | revoked | completed | entered-in-error | unknown
                    Comments

                    This will be 'draft' when using order-select or an initial order-sign, but may be 'active' or other values for order-sign representing edits to the order or for order-dispatch.

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

                    Codes representing the status of the request.

                    Typecode
                    Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supporttrue
                    Summarytrue
                    ExampleGeneral: draft
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    54. DeviceRequest.intent
                    Definition

                    Whether the request is a proposal, plan, an original order or a reflex order.

                    Shortproposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
                    Control1..1
                    BindingThe codes SHALL be taken from RequestIntent
                    (required to http://hl7.org/fhir/ValueSet/request-intent|4.0.1)

                    The kind of diagnostic request.

                    Typecode
                    Is Modifiertrue because This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request
                    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. DeviceRequest.priority
                    Definition

                    Indicates how quickly the {{title}} should be addressed with respect to other requests.

                    Shortroutine | urgent | asap | stat
                    Control0..1
                    BindingThe codes SHALL be taken from RequestPriority
                    (required to http://hl7.org/fhir/ValueSet/request-priority|4.0.1)

                    Identifies the level of importance to be assigned to actioning the request.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Meaning if MissingIf missing, normal priority
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    58. DeviceRequest.code[x]
                    Definition

                    The details of the device to be used.

                    ShortDevice requested
                    Control1..1
                    BindingUnless not suitable, these codes SHALL be taken from CRD Device Request Codes Value Set
                    (extensible to http://hl7.org/fhir/us/davinci-crd/ValueSet/deviceRequest)
                    TypeChoice of: Reference(CRD Device), CodeableConcept
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    Is Modifierfalse
                    Must Supporttrue
                    Must Support TypesNo must-support rules about the choice of types/profiles
                    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 DeviceRequest.code[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                    • type @ $this
                    • 60. DeviceRequest.code[x]:codeCodeableConcept
                      Slice NamecodeCodeableConcept
                      Definition

                      The details of the device to be used.

                      ShortDevice requested
                      Control0..1
                      BindingFor example codes, see FHIRDeviceTypes
                      (example to http://hl7.org/fhir/ValueSet/device-kind|4.0.1)

                      Codes for devices that can be requested.

                      TypeCodeableConcept
                      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                      Is Modifierfalse
                      Must Supporttrue
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      62. DeviceRequest.code[x]:codeCodeableConcept.id
                      Definition

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

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      64. DeviceRequest.code[x]:codeCodeableConcept.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 DeviceRequest.code[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 66. DeviceRequest.code[x]:codeCodeableConcept.extension:BillingOptions
                        Slice NameBillingOptions
                        Definition

                        Identifies billing codes that could potentially be used for this clinical code

                        ShortExpected Billing Code(s)
                        Comments

                        This will typically only be populated if the ordering and performing systems are the same

                        Control0..*
                        TypeExtension(Billing Options) (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())
                        68. DeviceRequest.code[x]:codeCodeableConcept.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()))
                        70. DeviceRequest.code[x]:codeCodeableConcept.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()))
                        72. DeviceRequest.code[x]:codeReference
                        Slice NamecodeReference
                        Definition

                        The details of the device to be used.

                        ShortDevice requested
                        Control0..1
                        TypeReference(CRD Device)
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        Is Modifierfalse
                        Must Supporttrue
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        74. DeviceRequest.parameter
                        Definition

                        Specific parameters for the ordered item. For example, the prism value for lenses.

                        ShortDevice details
                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        76. DeviceRequest.parameter.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
                        78. DeviceRequest.parameter.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())
                        80. DeviceRequest.parameter.modifierExtension
                        Definition

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

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

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

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

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

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

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

                        A code or string that identifies the device detail being asserted.

                        ShortDevice detail
                        Control0..1
                        Binding

                        A code that identifies the device detail.

                        TypeCodeableConcept
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        84. DeviceRequest.parameter.value[x]
                        Definition

                        The value of the device detail.

                        ShortValue of detail
                        Comments

                        Range means device should have a value that falls somewhere within the specified range.

                        Control0..1
                        TypeChoice of: CodeableConcept, Quantity, Range, boolean
                        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        86. DeviceRequest.subject
                        Definition

                        The patient who will use the device.

                        ShortFocus of request
                        Control1..1
                        TypeReference(CRD Patient)
                        Is Modifierfalse
                        Must Supporttrue
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        88. DeviceRequest.encounter
                        Definition

                        An encounter that provides additional context in which this request is made.

                        ShortEncounter motivating request
                        Comments

                        potentially relevant for CRD in some situations.

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

                        The timing schedule for the use of the device. The Schedule data type allows many different expressions, for example. "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013".

                        ShortDesired time or schedule for use
                        Control0..1
                        TypeChoice of: dateTime, Period, Timing
                        [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 TypesNo must-support rules about the choice of types/profiles
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        92. DeviceRequest.authoredOn
                        Definition

                        When the request transitioned to being actionable.

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

                        The individual who initiated the request and has responsibility for its activation.

                        ShortWho/what is requesting diagnostics
                        Control1..1
                        TypeReference(CRD Practitioner, HRex PractitionerRole Profile)
                        Is Modifierfalse
                        Must Supporttrue
                        Must Support TypesReference(CRD Practitioner, HRex PractitionerRole Profile)
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        96. DeviceRequest.performerType
                        Definition

                        Desired type of performer for doing the diagnostic testing.

                        ShortFiller role
                        Control0..1
                        BindingFor example codes, see ParticipantRoles
                        (example to http://hl7.org/fhir/ValueSet/participant-role|4.0.1)

                        Indicates specific responsibility of an individual within the care team, such as "Primary physician", "Team coordinator", "Caregiver", etc.

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

                        The desired performer for doing the diagnostic testing.

                        ShortRequested Filler
                        Control0..1
                        TypeReference(CRD Practitioner, HRex PractitionerRole Profile)
                        Is Modifierfalse
                        Must Supporttrue
                        Must Support TypesReference(CRD Practitioner, HRex PractitionerRole Profile)
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        100. DeviceRequest.reasonCode
                        Definition

                        Reason or justification for the use of this device.

                        ShortCoded Reason for request
                        Control0..*
                        BindingFor example codes, see Condition/Problem/DiagnosisCodes
                        (example to http://hl7.org/fhir/ValueSet/condition-code|4.0.1)

                        Diagnosis or problem codes justifying the reason for requesting the device.

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

                        Reason or justification for the use of this device.

                        ShortLinked Reason for request
                        Comments

                        Observations SHOULD use US Core profiles when applicable, but not all relevant observations have appropriate US Core profiles (and there are too many to practically list all US Core profiles).

                        Control0..*
                        TypeReference(US Core Condition Problems and Health Concerns Profile, US Core Condition Encounter Diagnosis Profile, US Core DiagnosticReport Profile for Laboratory Results Reporting, US Core DiagnosticReport Profile for Report and Note Exchange, US Core DocumentReference Profile, Observation)
                        Is Modifierfalse
                        Must Supporttrue
                        Must Support TypesNo must-support rules about the choice of types/profiles
                        Summarytrue
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        104. DeviceRequest.insurance
                        Definition

                        Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be required for delivering the requested service.

                        ShortAssociated insurance coverage
                        Control0..*
                        TypeReference(Coverage, ClaimResponse)
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        106. DeviceRequest.supportingInfo
                        Definition

                        Additional clinical information about the patient that may influence the request fulfilment. For example, this may include where on the subject's body the device will be used (i.e. the target site).

                        ShortAdditional clinical information
                        Control0..*
                        TypeReference(Resource)
                        Is Modifierfalse
                        Summaryfalse
                        Requirements

                        Knowing where the device is targeted is important for tracking if multiple sites are possible.

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

                        Details about this request 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.

                        ShortNotes or comments
                        Control0..*
                        TypeAnnotation
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        110. DeviceRequest.relevantHistory
                        Definition

                        Key events in the history of the request.

                        ShortRequest provenance
                        Comments

                        This might not include provenances for all versions of the request - only those deemed "relevant" or important. This SHALL NOT include the Provenance associated with this current version of the resource. (If that provenance is deemed to be a "relevant" change, it will need to be added as part of a later update. Until then, it can be queried directly as the Provenance that points to this version using _revinclude All Provenances should have some historical version of this Request as their subject.

                        Control0..*
                        TypeReference(Provenance)
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))