<status value="draft" /> <date value="2023-08-10" /> <publisher value="HL7 UK" /> <contact> <name value="HL7 UK" /> <telecom> <system value="email" /> <value value="ukcore@hl7.org.uk" /> <use value="work" /> <rank value="1" /> </telecom> </contact> <description value="Defines the constraints and extensions on the UK Core Profile Observation" /> <purpose value="To provide implementers with additional support when implementing blood pressure monitoring and to provide a consistent structure to how the data is presented." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="Observation" /> <baseDefinition value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-VitalSigns" /> <derivation value="constraint" /> <differential> <element id="Observation.code.coding:loinc"> <path value="Observation.code.coding" /> <sliceName value="loinc" /> </element> <element id="Observation.code.coding:loinc.code"> <path 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