http://hl7.org/fhir/StructureDefinition/specimen-additive|5.2.0
References a resource or provides a code or text that specifies a substance that is added to a laboratory specimen (part of the container device or added to the specimen indenpendently).
description: References a resource or provides a code or text that specifies a substance that is added to a laboratory specimen (part of the container device or added to the specimen indenpendently). derivation: constraint name: SpecimenAdditive type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/specimen-additive'} index: 1 value: choices: [] index: 3 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/specimen-additive base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.2.0 required: [value]