IHE.PIXm.Query.Parameters.Out
type: StructureDefinition
node role: treeRoot
id:
  v: IHE.PIXm.Query.Parameters.Out
text:
  status:
    v: extensions
  div:
    v: Generated Narrative: StructureDefinition IHE.PIXm.Query.Parameters.Out Name Flags Card. Type Description & Constraints<img src="[binary]" alt="doco" style="background-color: inherit"/> Parameters 0..* Parameters Operation Request or Response #xD; Slices for parameter 0..* BackboneElement Operation Parameter Slice: Unordered, Open by value:name #xD; parameter:targetIdentifier 0..* BackboneElement targetIdentifier #xD; name 1..1 string Name from the definition Fixed Value: targetIdentifier #xD; value[x] 1..1 Identifier If parameter is a data type #xD; system 1..1 uri The namespace for the identifier value #xD; value 1..1 string The value that is unique #xD; assigner 0..1 Reference(Organization) When the assigning authority name is provided, the actor shall also populate the assigner. #xD; display 1..1 string When the assigning authority name is provided, the actor shall also populate the display attribute. #xD; parameter:targetId 0..* BackboneElement Operation Parameter #xD; name 1..1 string Name from the definition Fixed Value: targetId #xD; value[x] 1..1 Reference(Patient) {r} If parameter is a data type #xD; reference 1..1 string Literal reference, Relative, internal or absolute URL #xD; <img src="[binary]" alt="doco" style="background-color: inherit"/> Documentation for this format
url:
  v: https://profiles.ihe.net/ITI/PIXm/StructureDefinition/IHE.PIXm.Query.Parameters.Out
  l: IHE.PIXm.Query.Parameters.Out
version:
  v: 3.1.0
name:
  v: PIXmQueryParametersOut
title:
  v: IHE PIXm Query Parameters Out
status:
  v: active
date:
  v: 2026-02-03T19:24:03+00:00
publisher:
  v: IHE IT Infrastructure Technical Committee
contact:
  telecom:
    system:
      v: url
    value:
      v: https://www.ihe.net/ihe_domains/it_infrastructure/
contact:
  telecom:
    system:
      v: email
contact:
  name:
    v: IHE IT Infrastructure Technical Committee
  telecom:
    system:
      v: email
description:
  v: The StructureDefinition defines the Output Parameters for the $ihe-pix operation - Output: targetId, targetIdentifier
jurisdiction:
  coding:
    system:
      v: http://unstats.un.org/unsd/methods/m49/m49.htm
      l: m49.htm
    code:
      v: 001
fhir version:
  v: 4.0.1
mapping:
  identity:
    v: v2
  uri:
    v: http://hl7.org/v2
    l: v2
  name:
    v: HL7 v2 Mapping
mapping:
  identity:
    v: rim
  uri:
    v: http://hl7.org/v3
    l: v3
  name:
    v: RIM Mapping
kind:
  v: resource
abstract:
  v: false
type:
  v: Parameters
  l: Parameters
base definition:
  v: http://hl7.org/fhir/StructureDefinition/Parameters
  l: Parameters
derivation:
  v: constraint
snapshot:
  extension:
    url:
      v: http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version
      l: snapshot-base-version
    value: String
      v: 4.0.1
  element:
    id:
      v: Parameters
    path:
      v: Parameters
    short:
      v: Operation Request or Response
    definition:
      v: This resource is a non-persisted resource used to pass information into and back from an [operation](http://hl7.org/fhir/R4/operations.html). It has no other use, and there is no RESTful endpoint associated with it.
    comment:
      v: The parameters that may be used are defined by the OperationDefinition resource.
    min:
      v: 0
    max:
      v: *
    base:
      path:
        v: Parameters
      min:
        v: 0
      max:
        v: *
    is modifier:
      v: false
    is summary:
      v: false
    mapping:
      identity:
        v: rim
      map:
        v: Entity. Role, or Act
    mapping:
      identity:
        v: v2
      map:
        v: n/a
    mapping:
      identity:
        v: rim
      map:
        v: n/a
  element:
    id:
      v: Parameters.id
    path:
      v: Parameters.id
    short:
      v: Logical id of this artifact
    definition:
      v: The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
    comment:
      v: The only time that a resource does not have an id is when it is being submitted to the server using a create operation.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: Resource.id
      min:
        v: 0
      max:
        v: 1
    type:
      extension:
        value: Url
      code:
        v: http://hl7.org/fhirpath/System.String
        l: System.String
    is modifier:
      v: false
    is summary:
      v: true
  element:
    id:
      v: Parameters.meta
    path:
      v: Parameters.meta
    short:
      v: Metadata about the resource
    definition:
      v: 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.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: Resource.meta
      min:
        v: 0
      max:
        v: 1
    type:
      code:
        v: Meta
        l: Meta
    constraint:
      key:
        v: ele-1
      severity:
        v: error
      human:
        v: All FHIR elements must have a @value or children
      expression:
        v: hasValue() or (children().count() > id.count())
      xpath:
        v: @value|f:*|h:div
      source:
        v: http://hl7.org/fhir/StructureDefinition/Element
        l: Element
    is modifier:
      v: false
    is summary:
      v: true

Url
v: id
l: id

id:
  v: Parameters.implicitRules
path:
  v: Parameters.implicitRules
short:
  v: A set of rules under which this content was created
definition:
  v: 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.
comment:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Resource.implicitRules
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: uri
    l: uri
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: true
is modifier reason:
  v: 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
is summary:
  v: true

id:
  v: Parameters.language
path:
  v: Parameters.language
short:
  v: Language of the resource content
definition:
  v: The base language in which the resource is written.
comment:
  v: 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).
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Resource.language
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: code
    l: code
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: false
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet
      l: elementdefinition-maxValueSet
    value: Canonical
      v: http://hl7.org/fhir/ValueSet/all-languages
      l: all-languages
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: Language
  strength:
    v: preferred
  description:
    v: A human language.
  value set:
    v: http://hl7.org/fhir/ValueSet/languages|4.0.1
    l: http://hl7.org/fhir/ValueSet/languages

id:
  v: Parameters.parameter
path:
  v: Parameters.parameter
slicing:
  discriminator:
    type:
      v: value
    path:
      v: name
  description:
    v: allowed parameters are targetId and targetIdentifier
  rules:
    v: open
short:
  v: Operation Parameter
definition:
  v: A parameter passed to or received from the operation.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Parameters.parameter
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: BackboneElement
    l: BackboneElement
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: inv-1
  severity:
    v: error
  human:
    v: A parameter must have one and only one of (value, resource, part)
  expression:
    v: (part.exists() and value.empty() and resource.empty()) or (part.empty() and (value.exists() xor resource.exists()))
  xpath:
    v: (exists(f:resource) or exists(f:part) or exists(f:*[starts-with(local-name(.), 'value')])) and not(exists(f:*[starts-with(local-name(.), 'value')])) and exists(f:resource))) and not(exists(f:*[starts-with(local-name(.), 'value')])) and exists(f:part))) and not(exists(f:part) and exists(f:resource))
  source:
    v: http://hl7.org/fhir/StructureDefinition/Parameters
    l: Parameters
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter.id
path:
  v: Parameters.parameter.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter.extension
path:
  v: Parameters.parameter.extension
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter.modifierExtension
path:
  v: Parameters.parameter.modifierExtension
short:
  v: Extensions that cannot be ignored even if unrecognized
definition:
  v: 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).
comment:
  v: 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.
requirements:
  v: 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](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).
alias:
  v: extensions
alias:
  v: user content
alias:
  v: modifiers
min:
  v: 0
max:
  v: *
base:
  path:
    v: BackboneElement.modifierExtension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: true
is modifier reason:
  v: Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter.name
path:
  v: Parameters.parameter.name
short:
  v: Name from the definition
definition:
  v: The name of the parameter (reference to the operation definition).
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Parameters.parameter.name
  min:
    v: 1
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter.value[x]
path:
  v: Parameters.parameter.value[x]
short:
  v: If parameter is a data type
definition:
  v: If the parameter is a data type.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Parameters.parameter.value[x]
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: base64Binary
    l: base64Binary
type:
  code:
    v: boolean
    l: boolean
type:
  code:
    v: canonical
    l: canonical
type:
  code:
    v: code
    l: code
type:
  code:
    v: date
    l: date
type:
  code:
    v: dateTime
    l: dateTime
type:
  code:
    v: decimal
    l: decimal
type:
  code:
    v: id
    l: id
type:
  code:
    v: instant
    l: instant
type:
  code:
    v: integer
    l: integer
type:
  code:
    v: markdown
    l: markdown
type:
  code:
    v: oid
    l: oid
type:
  code:
    v: positiveInt
    l: positiveInt
type:
  code:
    v: string
    l: string
type:
  code:
    v: time
    l: time
type:
  code:
    v: unsignedInt
    l: unsignedInt
type:
  code:
    v: uri
    l: uri
type:
  code:
    v: url
    l: url
type:
  code:
    v: uuid
    l: uuid
type:
  code:
    v: Address
    l: Address
type:
  code:
    v: Age
    l: Age
type:
  code:
    v: Annotation
    l: Annotation
type:
  code:
    v: Attachment
    l: Attachment
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
type:
  code:
    v: Coding
    l: Coding
type:
  code:
    v: ContactPoint
    l: ContactPoint
type:
  code:
    v: Count
    l: Count
type:
  code:
    v: Distance
    l: Distance
type:
  code:
    v: Duration
    l: Duration
type:
  code:
    v: HumanName
    l: HumanName
type:
  code:
    v: Identifier
    l: Identifier
type:
  code:
    v: Money
    l: Money
type:
  code:
    v: Period
    l: Period
type:
  code:
    v: Quantity
    l: Quantity
type:
  code:
    v: Range
    l: Range
type:
  code:
    v: Ratio
    l: Ratio
type:
  code:
    v: Reference
    l: Reference
type:
  code:
    v: SampledData
    l: SampledData
type:
  code:
    v: Signature
    l: Signature
type:
  code:
    v: Timing
    l: Timing
type:
  code:
    v: ContactDetail
    l: ContactDetail
type:
  code:
    v: Contributor
    l: Contributor
type:
  code:
    v: DataRequirement
    l: DataRequirement
type:
  code:
    v: Expression
    l: Expression
type:
  code:
    v: ParameterDefinition
    l: ParameterDefinition
type:
  code:
    v: RelatedArtifact
    l: RelatedArtifact

code:
  v: TriggerDefinition
  l: TriggerDefinition

code:
  v: UsageContext
  l: UsageContext

code:
  v: Dosage
  l: Dosage

code:
  v: Meta
  l: Meta

v: inv-1

key:
  v: ele-1
severity:
  v: error
human:
  v: All FHIR elements must have a @value or children
expression:
  v: hasValue() or (children().count() > id.count())
xpath:
  v: @value|f:*|h:div
source:
  v: http://hl7.org/fhir/StructureDefinition/Element
  l: Element

v: false

v: true

id:
  v: Parameters.parameter.resource
path:
  v: Parameters.parameter.resource
short:
  v: If parameter is a whole resource
definition:
  v: If the parameter is a whole resource.
comment:
  v: When resolving references in resources, the operation definition may specify how references may be resolved between parameters. If a reference cannot be resolved between the parameters, the application should fall back to it's general resource resolution methods.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Parameters.parameter.resource
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Resource
    l: Resource
condition:
  v: inv-1
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter.part
path:
  v: Parameters.parameter.part
short:
  v: Named part of a multi-part parameter
definition:
  v: A named part of a multi-part parameter.
comment:
  v: Only one level of nested parameters is allowed.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Parameters.parameter.part
  min:
    v: 0
  max:
    v: *
content reference:
  v: http://hl7.org/fhir/StructureDefinition/Parameters#Parameters.parameter
  l: Parameters.parameter
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetIdentifier
path:
  v: Parameters.parameter
slice name:
  v: targetIdentifier
short:
  v: targetIdentifier
definition:
  v: A parameter passed to or received from the operation.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Parameters.parameter
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: BackboneElement
    l: BackboneElement
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: inv-1
  severity:
    v: error
  human:
    v: A parameter must have one and only one of (value, resource, part)
  expression:
    v: (part.exists() and value.empty() and resource.empty()) or (part.empty() and (value.exists() xor resource.exists()))
  xpath:
    v: (exists(f:resource) or exists(f:part) or exists(f:*[starts-with(local-name(.), 'value')])) and not(exists(f:*[starts-with(local-name(.), 'value')])) and exists(f:resource))) and not(exists(f:*[starts-with(local-name(.), 'value')])) and exists(f:part))) and not(exists(f:part) and exists(f:resource))
  source:
    v: http://hl7.org/fhir/StructureDefinition/Parameters
    l: Parameters
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetIdentifier.id
path:
  v: Parameters.parameter.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetIdentifier.extension
path:
  v: Parameters.parameter.extension
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetIdentifier.modifierExtension
path:
  v: Parameters.parameter.modifierExtension
short:
  v: Extensions that cannot be ignored even if unrecognized
definition:
  v: 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).
comment:
  v: 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.
requirements:
  v: 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](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).
alias:
  v: extensions
alias:
  v: user content
alias:
  v: modifiers
min:
  v: 0
max:
  v: *
base:
  path:
    v: BackboneElement.modifierExtension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: true
is modifier reason:
  v: Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetIdentifier.name
path:
  v: Parameters.parameter.name
short:
  v: Name from the definition
definition:
  v: The name of the parameter (reference to the operation definition).
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Parameters.parameter.name
  min:
    v: 1
  max:
    v: 1
type:
  code:
    v: string
    l: string
fixed: String
  v: targetIdentifier
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetIdentifier.value[x]
path:
  v: Parameters.parameter.value[x]
short:
  v: If parameter is a data type
definition:
  v: If the parameter is a data type.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Parameters.parameter.value[x]
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Identifier
    l: Identifier
condition:
  v: inv-1
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetIdentifier.value[x].id
path:
  v: Parameters.parameter.value[x].id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetIdentifier.value[x].extension
path:
  v: Parameters.parameter.value[x].extension
slicing:
  discriminator:
    type:
      v: value
    path:
      v: url
  description:
    v: Extensions are always sliced by (at least) url
  rules:
    v: open
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetIdentifier.value[x].use
path:
  v: Parameters.parameter.value[x].use
short:
  v: usual | official | temp | secondary | old (If known)
definition:
  v: The purpose of this identifier.
comment:
  v: Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.
requirements:
  v: Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Identifier.use
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: code
    l: code
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: true
is modifier reason:
  v: This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: IdentifierUse
  strength:
    v: required
  description:
    v: Identifies the purpose for this identifier, if known .
  value set:
    v: http://hl7.org/fhir/ValueSet/identifier-use|4.0.1
    l: http://hl7.org/fhir/ValueSet/identifier-use
mapping:
  identity:
    v: v2
  map:
    v: N/A
mapping:
  identity:
    v: rim
  map:
    v: Role.code or implied by context

id:
  v: Parameters.parameter:targetIdentifier.value[x].type
path:
  v: Parameters.parameter.value[x].type
short:
  v: Description of identifier
definition:
  v: A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
comment:
  v: This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.
requirements:
  v: Allows users to make use of identifiers when the identifier system is not known.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Identifier.type
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: IdentifierType
  strength:
    v: extensible
  description:
    v: A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.
  value set:
    v: http://hl7.org/fhir/ValueSet/identifier-type|4.0.1
    l: http://hl7.org/fhir/ValueSet/identifier-type
mapping:
  identity:
    v: v2
  map:
    v: CX.5
mapping:
  identity:
    v: rim
  map:
    v: Role.code or implied by context

id:
  v: Parameters.parameter:targetIdentifier.value[x].system
path:
  v: Parameters.parameter.value[x].system
short:
  v: The namespace for the identifier value
definition:
  v: Establishes the namespace for the value - that is, a URL that describes a set values that are unique.
comment:
  v: Both the value and system shall be populated. (See [IHE ITI TF-2 Z.9.1 Identifier Type](https://profiles.ihe.net/ITI/TF/Volume2/ch-Z.html#z.9.1-identifier-type))
requirements:
  v: There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Identifier.system
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: uri
    l: uri
example:
  label:
    v: General
  value: Uri
    v: http://www.acme.com/identifiers/patient
    l: patient
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: CX.4 / EI-2-4
mapping:
  identity:
    v: rim
  map:
    v: II.root or Role.id.root
mapping:
  identity:
    v: servd
  map:
    v: ./IdentifierType

id:
  v: Parameters.parameter:targetIdentifier.value[x].value
path:
  v: Parameters.parameter.value[x].value
short:
  v: The value that is unique
definition:
  v: The portion of the identifier typically relevant to the user and which is unique within the context of the system.
comment:
  v: If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the [Rendered Value extension](http://hl7.org/fhir/R4/extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Identifier.value
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
example:
  label:
    v: General
  value: String
    v: 123456
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: CX.1 / EI.1
mapping:
  identity:
    v: rim
  map:
    v: II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
mapping:
  identity:
    v: servd
  map:
    v: ./Value

id:
  v: Parameters.parameter:targetIdentifier.value[x].period
path:
  v: Parameters.parameter.value[x].period
short:
  v: Time period when id is/was valid for use
definition:
  v: Time period during which identifier is/was valid for use.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Identifier.period
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Period
    l: Period
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: CX.7 + CX.8
mapping:
  identity:
    v: rim
  map:
    v: Role.effectiveTime or implied by context
mapping:
  identity:
    v: servd
  map:
    v: ./StartDate and ./EndDate

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner
path:
  v: Parameters.parameter.value[x].assigner
short:
  v: When the assigning authority name is provided, the actor shall also populate the assigner.
definition:
  v: Organization that issued/manages the identifier.
comment:
  v: The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Identifier.assigner
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Reference
    l: Reference
  target profile:
    v: http://hl7.org/fhir/StructureDefinition/Organization|4.0.1
    l: http://hl7.org/fhir/StructureDefinition/Organization
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: CX.4 / (CX.4,CX.9,CX.10)
mapping:
  identity:
    v: rim
  map:
    v: II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
mapping:
  identity:
    v: servd
  map:
    v: ./IdentifierIssuingAuthority

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner.id
path:
  v: Parameters.parameter.value[x].assigner.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner.extension
path:
  v: Parameters.parameter.value[x].assigner.extension
slicing:
  discriminator:
    type:
      v: value
    path:
      v: url
  description:
    v: Extensions are always sliced by (at least) url
  rules:
    v: open
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner.reference
path:
  v: Parameters.parameter.value[x].assigner.reference
short:
  v: Literal reference, Relative, internal or absolute URL
definition:
  v: A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
comment:
  v: Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Reference.reference
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
condition:
  v: ref-1
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner.type
path:
  v: Parameters.parameter.value[x].assigner.type
short:
  v: Type the reference refers to (e.g. "Patient")
definition:
  v: The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
comment:
  v: This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Reference.type
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: uri
    l: uri
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: FHIRResourceTypeExt
  strength:
    v: extensible
  description:
    v: Aa resource (or, for logical models, the URI of the logical model).
  value set:
    v: http://hl7.org/fhir/ValueSet/resource-types|4.0.1
    l: http://hl7.org/fhir/ValueSet/resource-types
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner.identifier
path:
  v: Parameters.parameter.value[x].assigner.identifier
short:
  v: Logical reference, when literal reference is not known
definition:
  v: An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
comment:
  v: When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Reference.identifier
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Identifier
    l: Identifier
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: .identifier

id:
  v: Parameters.parameter:targetIdentifier.value[x].assigner.display
extension:
  url:
    v: http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable
    l: elementdefinition-translatable
  value: Boolean
    v: true
path:
  v: Parameters.parameter.value[x].assigner.display
short:
  v: When the assigning authority name is provided, the actor shall also populate the display attribute.
definition:
  v: Plain text narrative that identifies the resource in addition to the resource reference.
comment:
  v: When the assigning authority name is provided, the actor shall also populate the display attribute. (IHE [ITI TF-2: Appendix E.3](https://profiles.ihe.net/ITI/TF/Volume2/ch-E.html#E.3))
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Reference.display
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetIdentifier.resource
path:
  v: Parameters.parameter.resource
short:
  v: If parameter is a whole resource
definition:
  v: If the parameter is a whole resource.
comment:
  v: When resolving references in resources, the operation definition may specify how references may be resolved between parameters. If a reference cannot be resolved between the parameters, the application should fall back to it's general resource resolution methods.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Parameters.parameter.resource
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Resource
    l: Resource
condition:
  v: inv-1
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetIdentifier.part
path:
  v: Parameters.parameter.part
short:
  v: Named part of a multi-part parameter
definition:
  v: A named part of a multi-part parameter.
comment:
  v: Only one level of nested parameters is allowed.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Parameters.parameter.part
  min:
    v: 0
  max:
    v: *
content reference:
  v: http://hl7.org/fhir/StructureDefinition/Parameters#Parameters.parameter
  l: Parameters.parameter
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetId
path:
  v: Parameters.parameter
slice name:
  v: targetId
short:
  v: Operation Parameter
definition:
  v: A parameter passed to or received from the operation.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Parameters.parameter
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: BackboneElement
    l: BackboneElement
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: inv-1
  severity:
    v: error
  human:
    v: A parameter must have one and only one of (value, resource, part)
  expression:
    v: (part.exists() and value.empty() and resource.empty()) or (part.empty() and (value.exists() xor resource.exists()))
  xpath:
    v: (exists(f:resource) or exists(f:part) or exists(f:*[starts-with(local-name(.), 'value')])) and not(exists(f:*[starts-with(local-name(.), 'value')])) and exists(f:resource))) and not(exists(f:*[starts-with(local-name(.), 'value')])) and exists(f:part))) and not(exists(f:part) and exists(f:resource))
  source:
    v: http://hl7.org/fhir/StructureDefinition/Parameters
    l: Parameters
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetId.id
path:
  v: Parameters.parameter.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetId.extension
path:
  v: Parameters.parameter.extension
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetId.modifierExtension
path:
  v: Parameters.parameter.modifierExtension
short:
  v: Extensions that cannot be ignored even if unrecognized
definition:
  v: 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).
comment:
  v: 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.
requirements:
  v: 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](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).
alias:
  v: extensions
alias:
  v: user content
alias:
  v: modifiers
min:
  v: 0
max:
  v: *
base:
  path:
    v: BackboneElement.modifierExtension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: true
is modifier reason:
  v: Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetId.name
path:
  v: Parameters.parameter.name
short:
  v: Name from the definition
definition:
  v: The name of the parameter (reference to the operation definition).
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Parameters.parameter.name
  min:
    v: 1
  max:
    v: 1
type:
  code:
    v: string
    l: string
fixed: String
  v: targetId
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetId.value[x]
path:
  v: Parameters.parameter.value[x]
short:
  v: If parameter is a data type
definition:
  v: If the parameter is a data type.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Parameters.parameter.value[x]
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Reference
    l: Reference
  target profile:
    v: http://hl7.org/fhir/StructureDefinition/Patient
    l: Patient
  aggregation:
    v: referenced
condition:
  v: inv-1
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetId.value[x].id
path:
  v: Parameters.parameter.value[x].id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetId.value[x].extension
path:
  v: Parameters.parameter.value[x].extension
slicing:
  discriminator:
    type:
      v: value
    path:
      v: url
  description:
    v: Extensions are always sliced by (at least) url
  rules:
    v: open
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Parameters.parameter:targetId.value[x].reference
path:
  v: Parameters.parameter.value[x].reference
short:
  v: Literal reference, Relative, internal or absolute URL
definition:
  v: A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
comment:
  v: Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.
min:
  v: 1
max:
  v: 1
base:
  path:
    v: Reference.reference
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
condition:
  v: ref-1
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetId.value[x].type
path:
  v: Parameters.parameter.value[x].type
short:
  v: Type the reference refers to (e.g. "Patient")
definition:
  v: The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
comment:
  v: This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Reference.type
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: uri
    l: uri
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: FHIRResourceTypeExt
  strength:
    v: extensible
  description:
    v: Aa resource (or, for logical models, the URI of the logical model).
  value set:
    v: http://hl7.org/fhir/ValueSet/resource-types|4.0.1
    l: http://hl7.org/fhir/ValueSet/resource-types
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetId.value[x].identifier
path:
  v: Parameters.parameter.value[x].identifier
short:
  v: Logical reference, when literal reference is not known
definition:
  v: An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
comment:
  v: When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Reference.identifier
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Identifier
    l: Identifier
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: .identifier

id:
  v: Parameters.parameter:targetId.value[x].display
extension:
  url:
    v: http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable
    l: elementdefinition-translatable
  value: Boolean
    v: true
path:
  v: Parameters.parameter.value[x].display
short:
  v: Text alternative for the resource
definition:
  v: Plain text narrative that identifies the resource in addition to the resource reference.
comment:
  v: This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Reference.display
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Parameters.parameter:targetId.resource
path:
  v: Parameters.parameter.resource
short:
  v: If parameter is a whole resource
definition:
  v: If the parameter is a whole resource.
comment:
  v: When resolving references in resources, the operation definition may specify how references may be resolved between parameters. If a reference cannot be resolved between the parameters, the application should fall back to it's general resource resolution methods.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Parameters.parameter.resource
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Resource
    l: Resource
condition:
  v: inv-1
is modifier:
  v: false
is summary:
  v: true

id:
  v: Parameters.parameter:targetId.part
path:
  v: Parameters.parameter.part
short:
  v: Named part of a multi-part parameter
definition:
  v: A named part of a multi-part parameter.
comment:
  v: Only one level of nested parameters is allowed.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Parameters.parameter.part
  min:
    v: 0
  max:
    v: *
content reference:
  v: http://hl7.org/fhir/StructureDefinition/Parameters#Parameters.parameter
  l: Parameters.parameter
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true

element:
  id:
    v: Parameters
  path:
    v: Parameters
element:
  id:
    v: Parameters.parameter
  path:
    v: Parameters.parameter
  slicing:
    discriminator:
      type:
        v: value
      path:
        v: name
    description:
      v: allowed parameters are targetId and targetIdentifier
    rules:
      v: open
element:
  id:
    v: Parameters.parameter:targetIdentifier
  path:
    v: Parameters.parameter
  slice name:
    v: targetIdentifier
  short:
    v: targetIdentifier
  min:
    v: 0
  max:
    v: *
element:
  id:
    v: Parameters.parameter:targetIdentifier.name
  path:
    v: Parameters.parameter.name
  fixed: String
    v: targetIdentifier
element:
  id:
    v: Parameters.parameter:targetIdentifier.value[x]
  path:
    v: Parameters.parameter.value[x]
  min:
    v: 1
  type:
    code:
      v: Identifier
      l: Identifier
element:
  id:
    v: Parameters.parameter:targetIdentifier.value[x].system
  path:
    v: Parameters.parameter.value[x].system
  comment:
    v: Both the value and system shall be populated. (See [IHE ITI TF-2 Z.9.1 Identifier Type](https://profiles.ihe.net/ITI/TF/Volume2/ch-Z.html#z.9.1-identifier-type))
  min:
    v: 1
element:
  id:
    v: Parameters.parameter:targetIdentifier.value[x].value
  path:
    v: Parameters.parameter.value[x].value
  min:
    v: 1
element:
  id:
    v: Parameters.parameter:targetIdentifier.value[x].assigner
  path:
    v: Parameters.parameter.value[x].assigner
  short:
    v: When the assigning authority name is provided, the actor shall also populate the assigner.
element:
  id:
    v: Parameters.parameter:targetIdentifier.value[x].assigner.display
  path:
    v: Parameters.parameter.value[x].assigner.display
  short:
    v: When the assigning authority name is provided, the actor shall also populate the display attribute.
  comment:
    v: When the assigning authority name is provided, the actor shall also populate the display attribute. (IHE [ITI TF-2: Appendix E.3](https://profiles.ihe.net/ITI/TF/Volume2/ch-E.html#E.3))
  min:
    v: 1
element:
  id:
    v: Parameters.parameter:targetId
  path:
    v: Parameters.parameter
  slice name:
    v: targetId
  min:
    v: 0
  max:
    v: *
element:
  id:
    v: Parameters.parameter:targetId.name
  path:
    v: Parameters.parameter.name
  fixed: String
    v: targetId
element:
  id:
    v: Parameters.parameter:targetId.value[x]
  path:
    v: Parameters.parameter.value[x]
  min:
    v: 1
  type:
    code:
      v: Reference
      l: Reference
    target profile:
      v: http://hl7.org/fhir/StructureDefinition/Patient
      l: Patient
    aggregation:
      v: referenced
element:
  id:
    v: Parameters.parameter:targetId.value[x].reference
  path:
    v: Parameters.parameter.value[x].reference
  min:
    v: 1