description: 'R4B: `ImmunizationEvaluation.doseNumber[x]` additional types (positiveInt) additional types from child elements (value)'
package_name: hl7.fhir.uv.xver-r4b.r5
derivation: constraint
name: ExtensionImmunizationEvaluation_DoseNumber
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ImmunizationEvaluation.doseNumber'}
    index: 0
  value:
    short: Dose number within series
    choices: [valuePositiveInt]
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    index: 2
  valuePositiveInt:
    short: Dose number within series
    type: positiveInt
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
package_version: 0.1.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-ImmunizationEvaluation.doseNumber
base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0
version: 0.1.0
required: [url]