description: A delivery address line is frequently used instead of breaking out delivery mode, delivery installation, etc. An address generally has only a delivery address line or a street address line, but not both. package_name: hl7.fhir.r4b.core derivation: constraint name: ADXP-deliveryAddressLine type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-deliveryAddressLine'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 4.3.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-deliveryAddressLine base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.3.0 required: [valueString, value]