description: This profile defines how to represent Specimen Additive Substances in HL7 FHIR for the purpose of this guide. package_name: lt.hl7.fhir.eu derivation: constraint name: SpecimenAdditiveSubstance type: Substance elements: code: binding: {strength: preferred, valueSet: 'http://hl7.eu/fhir/laboratory/ValueSet/lab-specimenAdditive-eu-lab'} index: 0 package_version: 0.0.1 class: profile kind: resource url: http://hl7.eu/fhir/laboratory/StructureDefinition/Substance-additive-eu-lab base: http://hl7.org/fhir/StructureDefinition/Substance|5.0.0 version: 0.2.0-ci