description: This profile defines the UK constraints and extensions on the International FHIR resource [Observation](https://hl7.org/fhir/R4/Observation.html), in order to represent an individual laboratory test and result value. These tests can be grouped together using the UKCore-Observation-Group-Lab profile. package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: UKCoreObservationLab type: Observation elements: extension: type: Extension url: http://hl7.org/fhir/6.0/StructureDefinition/extension-Observation.organizer index: 0 slicing: slices: ObservationOrganizer: match: {} schema: {type: Extension, url: 'http://hl7.org/fhir/6.0/StructureDefinition/extension-Observation.organizer', index: 0} status: {short: The status of the result value., mustSupport: true, index: 1} category: short: A code that classifies the general type of observation being made. mustSupport: true index: 2 slicing: rules: open discriminator: - {path: coding.code, type: value} min: 1 slices: laboratory: match: coding: {code: laboratory} schema: short: A mandatory code, to identify this observation as being Lab related. mustSupport: true _required: true index: 3 elements: coding: elements: system: pattern: {type: Uri, value: 'http://terminology.hl7.org/CodeSystem/observation-category'} index: 4 code: pattern: {type: Code, value: laboratory} index: 5 code: short: The type of lab related observation (code / type). binding: {strength: preferred, valueSet: 'https://fhir.hl7.org.uk/ValueSet/UKCore-PathologyAndLaboratoryMedicineObservables'} mustSupport: true index: 6 subject: type: Reference refers: ['http://hl7.org/fhir/StructureDefinition/Patient'] index: 7 bodySite: {index: 8} method: {index: 9} package_version: 0.28.0-pre-release extensions: ObservationOrganizer: {url: 'http://hl7.org/fhir/6.0/StructureDefinition/extension-Observation.organizer', type: Extension, index: 0} class: profile kind: resource url: https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-Lab base: http://hl7.org/fhir/StructureDefinition/Observation version: 3.0.0 required: [category]