description: How the type can be extended. Note that all FHIR types that inherit from ```Element``` have extension-style = fhir-extensions
package_name: hl7.fhir.uv.tools.r5
derivation: constraint
name: ExtensionStylesEXT
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/extension-style'}
    index: 1
  value:
    choices: [valueCode]
    index: 3
  valueCode: {type: code, choiceOf: value, index: 4}
package_version: 0.4.0
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/tools/StructureDefinition/extension-style
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.4.0
required: [valueCode, value]