FHIR Tooling Extensions IG
1.1.0 - Release 0.2.0 International flag

FHIR Tooling Extensions IG, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 1.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/FHIR/fhir-tools-ig/ and changes regularly. See the Directory of published versions

Extension: Matchetype Optional Flag (Experimental)

Official URL: http://hl7.org/fhir/tools/StructureDefinition/matchetype-optional Version: 1.1.0
Standards status: Informative Draft as of 2026-03-04 Maturity Level: 0 Computable Name: MatchetypeOptionalFlag
Other Identifiers: OID:2.16.840.1.113883.4.642.40.1.42.57

Marks the element or a set of sub-elements as optional - they do not need to be present

Context of Use

    This extension may be used on the following element(s)

Usage info

Usages:

  • This Extension is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Marks the element or a set of sub-elements as optional
... extension 0..0 Extension
... url 1..1 uri "http://hl7.org/fhir/tools/StructureDefinition/matchetype-optional"
... value[x] 1..1 Value of extension
.... valueString string
.... valueBoolean boolean

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Marks the element or a set of sub-elements as optional
... id 0..1 id Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "http://hl7.org/fhir/tools/StructureDefinition/matchetype-optional"
.... valueString string
.... valueBoolean boolean

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type string, boolean: Marks the element or a set of sub-elements as optional - they do not need to be present

Maturity: 0

Differential ViewDifferential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Marks the element or a set of sub-elements as optional
... extension 0..0 Extension
... url 1..1 uri "http://hl7.org/fhir/tools/StructureDefinition/matchetype-optional"
... value[x] 1..1 Value of extension
.... valueString string
.... valueBoolean boolean

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Marks the element or a set of sub-elements as optional
... id 0..1 id Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "http://hl7.org/fhir/tools/StructureDefinition/matchetype-optional"
.... valueString string
.... valueBoolean boolean

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type string, boolean: Marks the element or a set of sub-elements as optional - they do not need to be present

Maturity: 0

 

Other representations of profile: CSV, Excel, Schematron