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Extension: unclosed

URL for this extension:

http://hl7.org/fhir/StructureDefinition/valueset-unclosed

Status: draft. Extension maintained by: HL7

Marks that the expansion is incomplete, and values other than those listed may be valid. This may be used because post-coordinated codes are allowed, and no practical expansion can be produced.

Comment:

This extension exists to allow for definition and use of value sets that are currently unbounded, including those for which it may always be impractical to set bounds. This can be done to allow additional learning in this space, such as exploring poorly understsood consequences of alternatives.

Context of Use: Use on Element ID ValueSet.expansion

Extension Content

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Summary

Name	Flags	Card.	Type	Description & Constraints
unclosed		0..1	boolean	URL = http://hl7.org/fhir/StructureDefinition/valueset-unclosed unclosed: Marks that the expansion is incomplete, and values other than those listed may be valid. This may be used because post-coordinated codes are allowed, and no practical expansion can be produced. Use on Element ID ValueSet.expansion
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/valueset-unclosed unclosed: Marks that the expansion is incomplete, and values other than those listed may be valid. This may be used because post-coordinated codes are allowed, and no practical expansion can be produced. Use on Element ID ValueSet.expansion
Slices for extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/valueset-unclosed"
value[x]		1..1	boolean	Value of extension
Documentation for this format

XML Template

<!-- unclosed -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-unclosed" >
  <!-- from Element: extension -->
 <valueBoolean value="[boolean]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // unclosed
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-unclosed", // R! 
    "valueBoolean" : <boolean> // C? R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
unclosed		0..1	boolean	URL = http://hl7.org/fhir/StructureDefinition/valueset-unclosed unclosed: Marks that the expansion is incomplete, and values other than those listed may be valid. This may be used because post-coordinated codes are allowed, and no practical expansion can be produced. Use on Element ID ValueSet.expansion
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/valueset-unclosed unclosed: Marks that the expansion is incomplete, and values other than those listed may be valid. This may be used because post-coordinated codes are allowed, and no practical expansion can be produced. Use on Element ID ValueSet.expansion
Slices for extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/valueset-unclosed"
value[x]		1..1	boolean	Value of extension
Documentation for this format

XML Template

<!-- unclosed -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-unclosed" >
  <!-- from Element: extension -->
 <valueBoolean value="[boolean]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // unclosed
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-unclosed", // R! 
    "valueBoolean" : <boolean> // 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)