CO
type: StructureDefinition
node role: treeRoot
id:
  v: CO
text:
  status:
    v: generated
  div: Coded data, where the domain from which the codeset comes is ordered. The Coded Ordinal data type adds semantics related to ordering so that models that make use of such domains may introduce model elements that involve statements about the order of the terms in a domain.
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/logical-target
  value: boolean
    extension:
      url:
        v: http://hl7.org/fhir/StructureDefinition/data-absent-reason
      value: code
        v: not-applicable
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/xml-namespace
  value: uri
    v: urn:hl7-org:v3
extension:
  url:
    v: http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics
  value: code
    v: can-bind
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/elementdefinition-binding-style
  value: code
    v: CDA
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/logical-container
  value: uri
    v: http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument
url:
  v: http://hl7.org/cda/stds/core/StructureDefinition/CO
version:
  v: 1.0.1
name:
  v: CO
title:
  v: CO: CodedOrdinal (V3 Data Type)
status:
  v: active
experimental:
  v: false
date:
  v: 2025-10-10T09:58:30+10:00
publisher:
  v: HL7
description:
  v: Coded data, where the coding system from which the code comes is ordered
fhir version:
  v: 5.0.0
mapping:
  identity:
    v: rim
  uri:
    v: http://hl7.org/v3
  name:
    v: RIM Mapping
kind:
  v: logical
abstract:
  v: false
type:
  v: http://hl7.org/cda/stds/core/StructureDefinition/CO
base definition:
  v: http://hl7.org/cda/stds/core/StructureDefinition/CV
  link: http://hl7.org/cda/stds/core/StructureDefinition/CV
derivation:
  v: specialization
snapshot:
  extension:
    url:
      v: http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version
    value: string
      v: 1.0.1
  element:
    id:
      v: CO
    path:
      v: CO
    short:
      v: Base for all types and resources
    definition:
      v: Coded data, where the domain from which the codeset comes is ordered. The Coded Ordinal data type adds semantics related to ordering so that models that make use of such domains may introduce model elements that involve statements about the order of the terms in a domain.
    min:
      v: 1
    max:
      v: *
    base:
      path:
        v: Base
      min:
        v: 0
      max:
        v: *
    is modifier:
      v: false
    mapping:
      identity:
        v: rim
      map:
        v: n/a
  element:
    id:
      v: CO.nullFlavor
    path:
      v: CO.nullFlavor
    representation:
      v: xmlAttr
    label:
      v: Exceptional Value Detail
    definition:
      v: If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: ANY.nullFlavor
      min:
        v: 0
      max:
        v: 1
    type:
      code:
        v: code
      profile:
        v: http://hl7.org/cda/stds/core/StructureDefinition/cs-simple
        link: http://hl7.org/cda/stds/core/StructureDefinition/cs-simple
    binding:
      strength:
        v: required
      value set:
        v: http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor
        link: http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor
  element:
    id:
      v: CO.code
    path:
      v: CO.code
    representation:
      v: xmlAttr
    label:
      v: Code
    definition:
      v: The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: CD.code
      min:
        v: 0
      max:
        v: 1
    type:
      code:
        v: code
      profile:
        v: http://hl7.org/cda/stds/core/StructureDefinition/cs-simple
        link: http://hl7.org/cda/stds/core/StructureDefinition/cs-simple
  element:
    id:
      v: CO.codeSystem
    path:
      v: CO.codeSystem
    representation:
      v: xmlAttr
    label:
      v: Code System
    definition:
      v: Specifies the code system that defines the code.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: CD.codeSystem
      min:
        v: 0
      max:
        v: 1
    type:
      code:
        v: string
      profile:
        v: http://hl7.org/cda/stds/core/StructureDefinition/oid
        link: http://hl7.org/cda/stds/core/StructureDefinition/oid
      profile:
        v: http://hl7.org/cda/stds/core/StructureDefinition/uuid
        link: http://hl7.org/cda/stds/core/StructureDefinition/uuid
      profile:
        v: http://hl7.org/cda/stds/core/StructureDefinition/ruid
        link: http://hl7.org/cda/stds/core/StructureDefinition/ruid

id:
  v: CO.codeSystemName
path:
  v: CO.codeSystemName
representation:
  v: xmlAttr
label:
  v: Code System Name
definition:
  v: The common name of the coding system.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: CD.codeSystemName
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
  profile:
    v: http://hl7.org/cda/stds/core/StructureDefinition/st-simple
    link: http://hl7.org/cda/stds/core/StructureDefinition/st-simple

id:
  v: CO.codeSystemVersion
path:
  v: CO.codeSystemVersion
representation:
  v: xmlAttr
label:
  v: Code System Version
definition:
  v: If applicable, a version descriptor defined specifically for the given code system.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: CD.codeSystemVersion
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
  profile:
    v: http://hl7.org/cda/stds/core/StructureDefinition/st-simple
    link: http://hl7.org/cda/stds/core/StructureDefinition/st-simple

id:
  v: CO.displayName
path:
  v: CO.displayName
representation:
  v: xmlAttr
label:
  v: Display Name
definition:
  v: A name or title for the code, under which the sending system shows the code value to its users.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: CD.displayName
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
  profile:
    v: http://hl7.org/cda/stds/core/StructureDefinition/st-simple
    link: http://hl7.org/cda/stds/core/StructureDefinition/st-simple

id:
  v: CO.sdtcValueSet
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/xml-namespace
  value: uri
    v: urn:hl7-org:sdtc
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/xml-name
  value: string
    v: valueSet
path:
  v: CO.sdtcValueSet
representation:
  v: xmlAttr
definition:
  v: The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: CD.valueSet
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
  profile:
    v: http://hl7.org/cda/stds/core/StructureDefinition/oid
    link: http://hl7.org/cda/stds/core/StructureDefinition/oid

id:
  v: CO.sdtcValueSetVersion
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/xml-namespace
  value: uri
    v: urn:hl7-org:sdtc
extension:
  url:
    v: http://hl7.org/fhir/tools/StructureDefinition/xml-name
  value: string
    v: valueSetVersion
path:
  v: CO.sdtcValueSetVersion
representation:
  v: xmlAttr
definition:
  v: The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: CD.sdtcValueSetVersion
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
  profile:
    v: http://hl7.org/cda/stds/core/StructureDefinition/st-simple
    link: http://hl7.org/cda/stds/core/StructureDefinition/st-simple

id:
  v: CO.originalText
path:
  v: CO.originalText
label:
  v: Original Text
definition:
  v: The text or phrase used as the basis for the coding.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: CD.originalText
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: http://hl7.org/cda/stds/core/StructureDefinition/ED

id:
  v: CO.qualifier
path:
  v: CO.qualifier
label:
  v: Qualifier
definition:
  v: Specifies additional codes that increase the specificity of the the primary code.
min:
  v: 0
max:
  v: 0
base:
  path:
    v: CD.qualifier
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: http://hl7.org/cda/stds/core/StructureDefinition/CR

id:
  v: CO.translation
path:
  v: CO.translation
representation:
  v: typeAttr
label:
  v: Translation
definition:
  v: A set of other concept descriptors that translate this concept descriptor into other code systems.
min:
  v: 0
max:
  v: 0
base:
  path:
    v: CD.translation
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: http://hl7.org/cda/stds/core/StructureDefinition/CD

element:
  id:
    v: CO
  path:
    v: CO
  definition:
    v: Coded data, where the domain from which the codeset comes is ordered. The Coded Ordinal data type adds semantics related to ordering so that models that make use of such domains may introduce model elements that involve statements about the order of the terms in a domain.
  min:
    v: 1
  max:
    v: *