This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU) in it's permanent home (it will always be available at this URL). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4

Extension: expand-group

Vocabulary Work Group

Maturity Level: 1

Informative

Use Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/valueset-expand-group

Status: draft. Extension maintained by: HL7

This extension declares a group of concepts that is generated into the ValueSet.expansion.contains hierarchy when the expansion is generated for a UI. THere is no inherent assigned meaning to the hierarchy; it is used to help the user navigate the concepts. Each group has a display and/or a code, and a list of members, which are either concepts in the value set, or other groups (by code).

Comment:

Note that there are inter-relationships between concept status/properties and the way the groups are built; these are described and documented in the (value set hierarchical example)[d.html]. Note that this extension should be ignored when the expansion is not generated for UI.

Context of Use: Use on Element ID ValueSet.compose.include

Summary

Name	Card.	Type	Description & Constraints
expand-group	0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/valueset-expand-group expand-group: This extension declares a group of concepts that is generated into the ValueSet.expansion.contains hierarchy when the expansion is generated for a UI. THere is no inherent assigned meaning to the hierarchy; it is used to help the user navigate the concepts. Each group has a display and/or a code, and a list of members, which are either concepts in the value set, or other groups (by code). Use on Element ID ValueSet.compose.include
code	0..1	code	A reference to a code from the include.system that defines the meaning associated with the group. Note that including the code in this extension does not include the code in the value set; if the code is intended to be in the value set, it must be listed directly as well.
display	0..1	string	The description for the group (goes in ValueSet.expansion.contains.dispaly). All groups need a display; this can only be omitted if there is a code that can be used to determine the display.
member	1..*	code	One of more codes that identify codes in the expansion or other groups.
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/valueset-expand-group expand-group: This extension declares a group of concepts that is generated into the ValueSet.expansion.contains hierarchy when the expansion is generated for a UI. THere is no inherent assigned meaning to the hierarchy; it is used to help the user navigate the concepts. Each group has a display and/or a code, and a list of members, which are either concepts in the value set, or other groups (by code). Use on Element ID ValueSet.compose.include
extension	I	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
extension:code	I	0..1	Extension	Underlying code from the system
extension	I	0..0
url		1..1	uri	"code"
value[x]	I	1..1	code	Value of extension
extension:display	I	0..1	Extension	Display for the group
extension	I	0..0
url		1..1	uri	"display"
value[x]	I	1..1	string	Value of extension
extension:member	I	1..*	Extension	Codes or other groups in this group
extension	I	0..0
url		1..1	uri	"member"
value[x]	I	1..1	code	Value of extension
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/valueset-expand-group"
value[x]	I	0..0
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical()
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
valueMarkdown			markdown
valueOid			oid
valuePositiveInt			positiveInt
valueString			string
valueTime			time
valueUnsignedInt			unsignedInt
valueUri			uri
valueUrl			url
valueUuid			uuid
valueAddress			Address
valueAge			Age
valueAnnotation			Annotation
valueAttachment			Attachment
valueCodeableConcept			CodeableConcept
valueCoding			Coding
valueContactPoint			ContactPoint
valueCount			Count
valueDistance			Distance
valueDuration			Duration
valueHumanName			HumanName
valueIdentifier			Identifier
valueMoney			Money
valuePeriod			Period
valueQuantity			Quantity
valueRange			Range
valueRatio			Ratio
valueReference			Reference()
valueSampledData			SampledData
valueSignature			Signature
valueTiming			Timing
valueContactDetail			ContactDetail
valueContributor			Contributor
valueDataRequirement			DataRequirement
valueExpression			Expression
valueParameterDefinition			ParameterDefinition
valueRelatedArtifact			RelatedArtifact
valueTriggerDefinition			TriggerDefinition
valueUsageContext			UsageContext
valueDosage			Dosage
valueMeta			Meta
Documentation for this format

XML Template

<!-- expand-group -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-expand-group" >
 <-- extension sliced by value:url  in the specified orderOpen-->
 <extension url="code">  0..1 Extension  <!--  0..1 Underlying code from the system -->
  <valueCode value="[code]"/><!--  1..1 Value of extension -->
 </extension>
 <extension url="display">  0..1 Extension  <!--  0..1 Display for the group -->
  <valueString value="[string]"/><!--  1..1 Value of extension -->
 </extension>
 <extension url="member">  1..* Extension  <!--  1..* Codes or other groups in this group -->
  <valueCode value="[code]"/><!--  1..1 Value of extension -->
 </extension>
</extension>

JSON Template

{ // expand-group
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // Underlying code from the system // C?
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "code", // R! 
        "valueCode" : "<code>" // C? R! Value of extension
      },
      { // Display for the group // C?
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "display", // R! 
        "valueString" : "<string>" // C? R! Value of extension
      },
      { // Codes or other groups in this group // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "member", // R! 
        "valueCode" : "<code>" // C? R! Value of extension
      }
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-expand-group", // R! 
// value[x]: Value of extension. One of these 50:
  }

Summary

Name	Card.	Type	Description & Constraints
expand-group	0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/valueset-expand-group expand-group: This extension declares a group of concepts that is generated into the ValueSet.expansion.contains hierarchy when the expansion is generated for a UI. THere is no inherent assigned meaning to the hierarchy; it is used to help the user navigate the concepts. Each group has a display and/or a code, and a list of members, which are either concepts in the value set, or other groups (by code). Use on Element ID ValueSet.compose.include
code	0..1	code	A reference to a code from the include.system that defines the meaning associated with the group. Note that including the code in this extension does not include the code in the value set; if the code is intended to be in the value set, it must be listed directly as well.
display	0..1	string	The description for the group (goes in ValueSet.expansion.contains.dispaly). All groups need a display; this can only be omitted if there is a code that can be used to determine the display.
member	1..*	code	One of more codes that identify codes in the expansion or other groups.
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/valueset-expand-group expand-group: This extension declares a group of concepts that is generated into the ValueSet.expansion.contains hierarchy when the expansion is generated for a UI. THere is no inherent assigned meaning to the hierarchy; it is used to help the user navigate the concepts. Each group has a display and/or a code, and a list of members, which are either concepts in the value set, or other groups (by code). Use on Element ID ValueSet.compose.include
extension	I	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
extension:code	I	0..1	Extension	Underlying code from the system
extension	I	0..0
url		1..1	uri	"code"
value[x]	I	1..1	code	Value of extension
extension:display	I	0..1	Extension	Display for the group
extension	I	0..0
url		1..1	uri	"display"
value[x]	I	1..1	string	Value of extension
extension:member	I	1..*	Extension	Codes or other groups in this group
extension	I	0..0
url		1..1	uri	"member"
value[x]	I	1..1	code	Value of extension
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/valueset-expand-group"
value[x]	I	0..0
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical()
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
valueMarkdown			markdown
valueOid			oid
valuePositiveInt			positiveInt
valueString			string
valueTime			time
valueUnsignedInt			unsignedInt
valueUri			uri
valueUrl			url
valueUuid			uuid
valueAddress			Address
valueAge			Age
valueAnnotation			Annotation
valueAttachment			Attachment
valueCodeableConcept			CodeableConcept
valueCoding			Coding
valueContactPoint			ContactPoint
valueCount			Count
valueDistance			Distance
valueDuration			Duration
valueHumanName			HumanName
valueIdentifier			Identifier
valueMoney			Money
valuePeriod			Period
valueQuantity			Quantity
valueRange			Range
valueRatio			Ratio
valueReference			Reference()
valueSampledData			SampledData
valueSignature			Signature
valueTiming			Timing
valueContactDetail			ContactDetail
valueContributor			Contributor
valueDataRequirement			DataRequirement
valueExpression			Expression
valueParameterDefinition			ParameterDefinition
valueRelatedArtifact			RelatedArtifact
valueTriggerDefinition			TriggerDefinition
valueUsageContext			UsageContext
valueDosage			Dosage
valueMeta			Meta
Documentation for this format

XML Template

<!-- expand-group -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-expand-group" >
 <-- extension sliced by value:url  in the specified orderOpen-->
 <extension url="code">  0..1 Extension  <!--  0..1 Underlying code from the system -->
  <valueCode value="[code]"/><!--  1..1 Value of extension -->
 </extension>
 <extension url="display">  0..1 Extension  <!--  0..1 Display for the group -->
  <valueString value="[string]"/><!--  1..1 Value of extension -->
 </extension>
 <extension url="member">  1..* Extension  <!--  1..* Codes or other groups in this group -->
  <valueCode value="[code]"/><!--  1..1 Value of extension -->
 </extension>
</extension>

JSON Template

{ // expand-group
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // Underlying code from the system // C?
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "code", // R! 
        "valueCode" : "<code>" // C? R! Value of extension
      },
      { // Display for the group // C?
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "display", // R! 
        "valueString" : "<string>" // C? R! Value of extension
      },
      { // Codes or other groups in this group // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "member", // R! 
        "valueCode" : "<code>" // C? R! Value of extension
      }
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-expand-group", // R! 
// value[x]: Value of extension. One of these 50:
  }

Constraints

ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.extension.value[x]: @value|f:*|h:div)
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.extension.value[x]: @value|f:*|h:div)
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.extension.value[x]: @value|f:*|h:div)
ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)