Release 4B

This page is part of the FHIR Specification (v4.3.0: R4B - STU). 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 R3 R2

Extension: maxValueSet

FHIR Infrastructure Work Group Maturity Level: 1 Informative Use Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet

Status: draft. Extension maintained by: Health Level Seven, Inc. - FHIR Core WG

The maximum allowable value set, for use when the binding strength is 'extensible' or 'preferred'. This value set is the value set from which additional codes can be taken from. This defines a 'required' binding over the top of the extensible binding.

Comment:

Typically, this will be an entire code system, e.g. SNOMED CT. The maximum binding needs to include all the codes in the extensible or preferred binding.

Context of Use: Use on Element ID ElementDefinition.binding

Summary

Name	Flags	Card.	Type	Description & Constraints doco
.. maxValueSet	0..1	uri, canonical(ValueSet)	URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet maxValueSet: The maximum allowable value set, for use when the binding strength is 'extensible' or 'preferred'. This value set is the value set from which additional codes can be taken from. This defines a 'required' binding over the top of the extensible binding. Use on Element ID ElementDefinition.binding
doco Documentation for this format

Full Structure

Name	Flags	Card.	Type
.. extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet maxValueSet: The maximum allowable value set, for use when the binding strength is 'extensible' or 'preferred'. This value set is the value set from which additional codes can be taken from. This defines a 'required' binding over the top of the extensible binding. Use on Element ID ElementDefinition.binding
... extension	0..0
... url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"
... value[x]	1..1	Value of extension
.... valueUri	uri
.... valueCanonical	canonical(ValueSet)
doco Documentation for this format

XML Template

<!-- maxValueSet -->doco 
<extension xmlns="http://hl7.org/fhir"
 url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet" >
 <!-- from Element: extension -->
 <value[x]><!-- ?? 1..1 uri|canonical  Value of extension --></value[x]>
</extension>

JSON Template

{ // maxValueSet
 // from Element: extension
 "extension" : [ //  sliced by value:url in the specified order, Open ]
 "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet", // R! 
// value[x]: Value of extension. One of these 2:
 "valueUri" : "<uri >" // C? R! Value of extension
 "valueCanonical" : "<canonical >", // C? R! Value of extension
 }

Summary

Name	Flags	Card.	Type	Description & Constraints doco
.. maxValueSet	0..1	uri, canonical(ValueSet)	URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet maxValueSet: The maximum allowable value set, for use when the binding strength is 'extensible' or 'preferred'. This value set is the value set from which additional codes can be taken from. This defines a 'required' binding over the top of the extensible binding. Use on Element ID ElementDefinition.binding
doco Documentation for this format

Full Structure

Name	Flags	Card.	Type
.. extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet maxValueSet: The maximum allowable value set, for use when the binding strength is 'extensible' or 'preferred'. This value set is the value set from which additional codes can be taken from. This defines a 'required' binding over the top of the extensible binding. Use on Element ID ElementDefinition.binding
... extension	0..0
... url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"
... value[x]	1..1	Value of extension
.... valueUri	uri
.... valueCanonical	canonical(ValueSet)
doco Documentation for this format

XML Template

<!-- maxValueSet -->doco 
<extension xmlns="http://hl7.org/fhir"
 url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet" >
 <!-- from Element: extension -->
 <value[x]><!-- ?? 1..1 uri|canonical  Value of extension --></value[x]>
</extension>

JSON Template

{ // maxValueSet
 // from Element: extension
 "extension" : [ //  sliced by value:url in the specified order, Open ]
 "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet", // R! 
// value[x]: Value of extension. One of these 2:
 "valueUri" : "<uri >" // C? R! Value of extension
 "valueCanonical" : "<canonical >", // C? R! Value of extension
 }

Constraints

ele-1: All FHIR elements must have a @value or children unless an empty Parameters resource (xpath: @value|f:*|h:div|self::f:Parameters)
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.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)