description: This extension indicates that this added line item is to be interpreted as one of possibly multiple alternatives to the requested product or service. When isAlternative is true, the added line item is to be considered independently from any other added line items associated with the requested product or service. package_name: hl7.fhir.us.carin-rtpbc derivation: constraint name: RtpbcIsAlternativeExtension type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/carin-rtpbc/StructureDefinition/rtpbc-isAlternative'} index: 1 value: choices: [valueBoolean] index: 3 valueBoolean: {type: boolean, choiceOf: value, index: 4} package_version: 2.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/carin-rtpbc/StructureDefinition/rtpbc-isAlternative base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0-ballot required: [value, valueBoolean]