description: If the recorded quantity of the specimen is reported as a weight, if it is a dry weight. package_name: rs/hl7.fhir.r5.core derivation: constraint name: isDryWeight type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/specimen-isDryWeight'} type: uri index: 1 value: choices: [valueBoolean] index: 3 valueBoolean: {type: boolean, choiceOf: value, index: 4} package_version: 5.0.0-snapshot1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/specimen-isDryWeight base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-snapshot1 required: [value, valueBoolean]