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
    short: Observed body structure. This is a R5 backport.
    url: http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.bodyStructure
    index: 0
    slicing:
      slices:
        bodyStructureR5:
          match: {}
          schema: {type: Extension, short: Observed body structure. This is a R5 backport., url: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.bodyStructure', index: 0}
        ObservationTriggeredBy:
          match: {}
          schema: {type: Extension, url: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.triggeredBy', index: 1}
        ObservationOrganizer:
          match: {}
          schema: {type: Extension, url: 'http://hl7.org/fhir/6.0/StructureDefinition/extension-Observation.organizer', index: 2}
  status: {short: The status of the result value., mustSupport: true, index: 3}
  category:
    short: A code that classifies the general type of observation being made.
    mustSupport: true
    index: 4
    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: 5
            elements:
              coding:
                elements:
                  system:
                    pattern: {type: uri, value: 'http://terminology.hl7.org/CodeSystem/observation-category'}
                    type: uri
                    index: 6
                  code:
                    pattern: {type: code, value: laboratory}
                    type: code
                    index: 7
  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: 8
    elements:
      coding:
        index: 9
        extensions:
          reference: {url: 'http://hl7.org/fhir/StructureDefinition/valueset-reference', type: Extension, index: 10}
        elements:
          extension:
            type: Extension
            url: http://hl7.org/fhir/StructureDefinition/valueset-reference
            index: 10
            slicing:
              slices:
                reference:
                  match: {}
                  schema: {type: Extension, url: 'http://hl7.org/fhir/StructureDefinition/valueset-reference', index: 10}
        slicing:
          rules: open
          description: Slicing for Pathology to differentiate between the 2 SNOMED CT ValueSets, PaLM and PCBL
          min: null
          slices:
            pathology-PaLM-Procedures:
              match: {}
              schema:
                binding: {strength: extensible, valueSet: 'https://fhir.hl7.org.uk/ValueSet/UKCore-PathologyAndLaboratoryMedicineProcedures'}
                index: 11
            pathology-PaLM:
              match: {}
              schema:
                binding: {strength: extensible, valueSet: 'https://fhir.hl7.org.uk/ValueSet/UKCore-PathologyAndLaboratoryMedicineObservables'}
                index: 12
            pathology-PBCL:
              match: {}
              schema:
                binding: {strength: extensible, valueSet: 'https://fhir.hl7.org.uk/ValueSet/UKCore-PathologyBoundedCodeListObservables'}
                index: 13
  subject:
    type: Reference
    refers: ['http://hl7.org/fhir/StructureDefinition/Patient']
    index: 14
  bodySite: {index: 15}
  method: {index: 16}
package_version: 0.24.0-pre-release
extensions:
  bodyStructureR5: {url: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.bodyStructure', type: Extension, short: Observed body structure. This is a R5 backport., index: 0}
  ObservationTriggeredBy: {url: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Observation.triggeredBy', type: Extension, index: 1}
  ObservationOrganizer: {url: 'http://hl7.org/fhir/6.0/StructureDefinition/extension-Observation.organizer', type: Extension, index: 2}
class: profile
kind: resource
url: https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-Lab
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 2.2.0
required: [category]