Extension: nullFlavor

FHIR Infrastructure Work Group

Maturity Level: 1

Trial Use

Use Context: Any

Official URL: `http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor`				Version: 5.0.0-snapshot3
draft as of 2012-06-24				Computable Name: nullFlavor
Flags: Non-Modifier				OID: TBD

Context of Use: Use on Element ID Element

Definition

If the value is not a proper value, indicates the reason.

Comment:

Considerable care must be used when using nullFlavor in this context of FHIR - more than any other concept, this is tied to the way v3 works, and FHIR is quite different. For instance, there is no notion of a "proper value" as opposed to any other value in FHIR. a NullFlavor should be understood to mean, "why information is missing", and the nulFlavors OTH, NINF, PINF, and TRC should not be used.

Summary

Name	Flags	Card.	Type	Description & Constraints
nullFlavor		0..1	code	URL = http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor nullFlavor: If the value is not a proper value, indicates the reason. Binding: NullFlavor (required) Use on Element ID Element
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor nullFlavor: If the value is not a proper value, indicates the reason. Use on Element ID Element
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor"
value[x]	1..1	code	Value of extension Binding: NullFlavor (required)
Documentation for this format

XML Template

<!-- nullFlavor -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor" >
  <!-- from Element: extension -->
 <valueCode value="[code]"/><!-- I 1..1 Value of extension -->
</extension>

JSON Template

{ // nullFlavor
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor", // R! 
    "valueCode" : "<code>" // I R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
nullFlavor		0..1	code	URL = http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor nullFlavor: If the value is not a proper value, indicates the reason. Binding: NullFlavor (required) Use on Element ID Element
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor nullFlavor: If the value is not a proper value, indicates the reason. Use on Element ID Element
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor"
value[x]	1..1	code	Value of extension Binding: NullFlavor (required)
Documentation for this format

XML Template

<!-- nullFlavor -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor" >
  <!-- from Element: extension -->
 <valueCode value="[code]"/><!-- I 1..1 Value of extension -->
</extension>

JSON Template

{ // nullFlavor
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor", // R! 
    "valueCode" : "<code>" // I R! Value of extension
  }

Constraints

ele-1: All FHIR elements must have a @value or children (xpath: hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (xpath: extension.exists() != value.exists())
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: hasValue() or (children().count() > id.count()))
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: extension.exists() != value.exists())
ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: hasValue() or (children().count() > id.count()))

Search

No Search Extensions defined for this resource

Examples of this extension

No examples found.