description: An extension to provide the date and time a certain medication agreement, variable-dosing regimen, administration agreement or medication administration was recorded.\r\n\r\nFor the medication administration this extension can be seen as a pre-adopt of the `MedicationAdministration.recorded` element that has been added in FHIR R5. package_name: nictiz.fhir.nl.r4.medicationprocess9 derivation: constraint name: ExtRegistrationDateTime type: Extension elements: url: pattern: {type: Uri, value: 'http://nictiz.nl/fhir/StructureDefinition/ext-RegistrationDateTime'} index: 0 value: short: RegistrationDateTime choices: [valueDateTime] index: 2 valueDateTime: {type: dateTime, short: RegistrationDateTime, choiceOf: value, index: 3} package_version: 2.0.0-beta.5 class: extension kind: complex-type url: http://nictiz.nl/fhir/StructureDefinition/ext-RegistrationDateTime base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0-beta.5