This page is part of the FHIR Specification (v4.2.0: R5 Preview #1). 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

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON

Extension: extension

URL for this extension:

http://hl7.org/fhir/StructureDefinition/contactpoint-extension

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

The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in).

Comment:

The ContactPoint.value element SHOULD still be populated even if the extension is present.

Context of Use: Use on Element ID ContactPoint

Extension Content

• Summary
• Full Structure
• XML
• JSON
• All

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	string	URL = http://hl7.org/fhir/StructureDefinition/contactpoint-extension extension: The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). Use on Element ID ContactPoint
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/contactpoint-extension extension: The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). Use on Element ID ContactPoint
extension	I	0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/contactpoint-extension"
value[x]	I	1..1	string	Value of extension
Documentation for this format

XML Template

<!-- extension -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/contactpoint-extension" >
  <!-- from Element: extension -->
 <valueString value="[string]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

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

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	string	URL = http://hl7.org/fhir/StructureDefinition/contactpoint-extension extension: The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). Use on Element ID ContactPoint
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/contactpoint-extension extension: The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). Use on Element ID ContactPoint
extension	I	0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/contactpoint-extension"
value[x]	I	1..1	string	Value of extension
Documentation for this format

XML Template

<!-- extension -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/contactpoint-extension" >
  <!-- from Element: extension -->
 <valueString value="[string]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

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

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.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)