http://hl7.org/fhir/StructureDefinition/observation-specimenCode|4.0.1
A code representing the the type of specimen used for this observation. Should only be used if not implicit in the code found in `Observation.code`.
description: A code representing the the type of specimen used for this observation. Should only be used if not implicit in the code found in `Observation.code`. derivation: constraint name: specimenCode type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-specimenCode'} index: 1 value: choices: [] index: 3 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/observation-specimenCode base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.0.1 required: [value]