description: The date of the most recent information for this report package_name: hl7.fhir.us.icsr-ae-reporting derivation: constraint name: MostRecentDate type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/icsr-ae-reporting/StructureDefinition/icsr-ext-mostrecentdate'} index: 1 value: mustSupport: true choices: [valueDateTime] index: 3 valueDateTime: {type: dateTime, mustSupport: true, choiceOf: value, index: 4} package_version: 1.0.1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/icsr-ae-reporting/StructureDefinition/icsr-ext-mostrecentdate base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.1 required: [valueDateTime, value]