description: If an element is labelled nullable, it can be present as a null value in the json. If this extension does not appear, a null value is treated as an error
package_name: hl7.fhir.uv.tools.r3
derivation: constraint
name: JsonNullableExt
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/tools/StructureDefinition/json-nullable'}
    type: uri
    index: 1
  value:
    choices: [valueBoolean]
    index: 3
  valueBoolean: {type: boolean, choiceOf: value, index: 4}
package_version: 0.6.0
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/tools/StructureDefinition/json-nullable
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.6.0
required: [value, valueBoolean]