description: This profile constrains the Quantity data type to use UCUM as the code system for units and optionally share measurement uncertainty package_name: hl7.fhir.uv.lab derivation: constraint name: QuantityUvLab type: Quantity elements: extension: type: Extension url: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty index: 0 slicing: slices: uncertainty: match: {} schema: {type: Extension, url: 'http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty', index: 0} min: 0 max: 1 uncertaintyType: match: {} schema: {type: Extension, url: 'http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType', index: 1} min: 0 max: 1 package_version: report-1.0.0-ballot extensions: uncertainty: {url: 'http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty', min: 0, max: 1, type: Extension, index: 0} uncertaintyType: {url: 'http://hl7.org/fhir/StructureDefinition/iso21090-uncertaintyType', min: 0, max: 1, type: Extension, index: 1} class: complex-type kind: complex-type url: http://hl7.org/fhir/uv/lab-report/StructureDefinition/Quantity-uv-lab base: http://hl7.org/fhir/uv/ips/StructureDefinition/Quantity-uv-ips version: 1.0.0-ballot