description: The date and time that the dosage instructions were last changed.
package_name: fhir.r4.ukcore.stu3.currentbuild
derivation: constraint
name: ExtensionUKCoreMedicationDosageLastChanged
type: Extension
elements:
  url:
    pattern: {type: uri, value: 'https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationDosageLastChanged'}
    type: uri
    index: 0
  value:
    choices: [valueDateTime]
    index: 2
  valueDateTime: {type: dateTime, choiceOf: value, index: 3}
package_version: 0.22.0-pre-release
class: extension
kind: complex-type
url: https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationDosageLastChanged
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 2.1.0
required: [value, valueDateTime]