description: This extension is used to communicate a plain language description of the procedure, product, or service. package_name: hl7.fhir.us.davinci derivation: constraint name: ServiceDescription type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-pct/StructureDefinition/serviceDescription'} index: 1 value: short: The description of a procedure, product, or service choices: [valueString] index: 3 valueString: {type: string, short: 'The description of a procedure, product, or service', choiceOf: value, index: 4} package_version: pct-1.1.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/davinci-pct/StructureDefinition/serviceDescription base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.1.0 required: [valueString, value]