description: The US Core Heart Rate Profile inherits from the US Core Vital Signs Profile. This profile sets minimum expectations for the Observation resource to record, search, and fetch heart rate observations with a standard LOINC code and UCUM units of measure. It specifies which *additional* core elements, extensions, vocabularies, and value sets **SHALL** be present in the resource and constrains how the elements are used. Providing the floor for standards development for specific use cases promotes interoperability and adoption. package_name: hl7.fhir.us.core derivation: constraint name: USCoreHeartRateProfile type: Observation elements: code: type: CodeableConcept short: Heart Rate mustSupport: true pattern: type: CodeableConcept value: coding: - {code: 8867-4, system: 'http://loinc.org'} index: 0 valueQuantity: short: Vital Signs Value mustSupport: true index: 1 elements: value: {type: decimal, mustSupport: true, index: 2} unit: {type: string, mustSupport: true, index: 3} system: type: uri pattern: {type: Uri, value: 'http://unitsofmeasure.org'} mustSupport: true index: 4 code: type: code short: Coded responses from the common UCUM units for vital signs value set. pattern: {type: Code, value: /min} mustSupport: true index: 5 required: [value, unit, system, code] package_version: 7.0.0 class: profile kind: resource url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-heart-rate base: http://hl7.org/fhir/us/core/StructureDefinition/us-core-vital-signs version: 7.0.0