Extension: StructureDefinition Hierarchy

FHIR Infrastructure Work Group

Maturity Level: 1

Trial Use

Use Context: Any

Official URL: `http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy`				Version: 5.0.0-snapshot3
draft as of 2014-01-31				Computable Name: SDHierarchy
Flags: Non-Modifier				OID: 2.16.840.1.113883.4.642.5.1035

Context of Use: Use on Element ID ElementDefinition.type

Definition

For circular references (references back to the same type of resource): whether they are allowed to transitively point back to the same instance (false), or whether the relationship must be a strict one-way hierarchy (true).

Summary

Name	Flags	Card.	Type	Description & Constraints
SDHierarchy		0..1	boolean	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy SDHierarchy: For circular references (references back to the same type of resource): whether they are allowed to transitively point back to the same instance (false), or whether the relationship must be a strict one-way hierarchy (true). Use on Element ID ElementDefinition.type
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy SDHierarchy: For circular references (references back to the same type of resource): whether they are allowed to transitively point back to the same instance (false), or whether the relationship must be a strict one-way hierarchy (true). Use on Element ID ElementDefinition.type
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy"
value[x]	1..1	boolean	Value of extension
Documentation for this format

XML Template

<!-- SDHierarchy -->

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

JSON Template

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

Summary

Name	Flags	Card.	Type	Description & Constraints
SDHierarchy		0..1	boolean	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy SDHierarchy: For circular references (references back to the same type of resource): whether they are allowed to transitively point back to the same instance (false), or whether the relationship must be a strict one-way hierarchy (true). Use on Element ID ElementDefinition.type
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy SDHierarchy: For circular references (references back to the same type of resource): whether they are allowed to transitively point back to the same instance (false), or whether the relationship must be a strict one-way hierarchy (true). Use on Element ID ElementDefinition.type
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/structuredefinition-hierarchy"
value[x]	1..1	boolean	Value of extension
Documentation for this format

XML Template

<!-- SDHierarchy -->

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

JSON Template

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

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Examples of this extension