This page is part of the FHIR Specification (v1.4.0: STU 3 Ballot 3). 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

• Element
• Detailed Descriptions

1.21.0 BackboneElement

FHIR Infrastructure Work Group

Maturity Level: N/A

Ballot Status: DSTU 2

The base definition for elements defined as part of a resource definition. Data Type elements do not use this type. For instance, Patient.contact is an element that is defined as part of the patient resource, so it automatically has the type BackboneElement.

Note that the descendent types of BackboneElement are all declared implicitly as part of the definitions of the resources.

1.21.0.1 Content

• Structure
• UML
• XML
• JSON
• All

Structure

Name	Flags	Card.	Type	Description & Constraints
BackboneElement			Element	Base for elements defined inside a resource
modifierExtension	?! Σ	0..*	Extension	Extensions that cannot be ignored
Documentation for this format

UML Diagram

XML Template

<[name] xmlns="http://hl7.org/fhir"> 
 <!-- from Element: extension -->
 <modifierExtension><!-- 0..* Extension Extensions that cannot be ignored --></modifierExtension>
</[name]>

JSON Template



{
  // from Element: extension
  (Modifier Extensions - see JSON page)
}

Structure

Name	Flags	Card.	Type	Description & Constraints
BackboneElement			Element	Base for elements defined inside a resource
modifierExtension	?! Σ	0..*	Extension	Extensions that cannot be ignored
Documentation for this format

UML Diagram

XML Template

<[name] xmlns="http://hl7.org/fhir"> 
 <!-- from Element: extension -->
 <modifierExtension><!-- 0..* Extension Extensions that cannot be ignored --></modifierExtension>
</[name]>

JSON Template

{
  // from Element: extension
  (Modifier Extensions - see JSON page)
}

1.21.0.2 Specializations

This table lists all the specializations of BackboneElement that are defined, and the path at which they are defined.