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

ValueSet: Extension Style ValueSet

Official URL: http://hl7.org/fhir/tools/ValueSet/extension-style Version: 1.1.0
Standards status: Informative Active as of 2026-03-04 Maturity Level: 3 Computable Name: ExtensionStylesVS
Other Identifiers: OID:2.16.840.1.113883.4.642.40.1.48.7

How the type can be extended. Note that all FHIR types that inherit from Element have extension-style = fhir-extensions

References

Logical Definition (CLD)

Language: en

 

Expansion

Expansion performed internally based on codesystem Extension Style Codes v1.1.0 (CodeSystem)

This value set contains 3 concepts

SystemCodeDisplay (en)DefinitionJSONXML
http://hl7.org/fhir/tools/CodeSystem/extension-style  nonenoneNo extensions
http://hl7.org/fhir/tools/CodeSystem/extension-style  fhir-extensionsfhir-extensionsFHIR extension style: the element defines 'extension' which can be constrained by profiles
http://hl7.org/fhir/tools/CodeSystem/extension-style  named-elementsnamed-elementsThe type can be extended by having additional named elements, where the name is from the elementdefinition-xml-name or elementdefinition-json-name for xml and json respectively

Description of the above table(s).