description: Defines constraints and extensions on the Observation resource for use in querying and retrieving pediatric BMI observations. package_name: hl7.fhir.us.core derivation: constraint name: USCorePediatricBMIforAgeObservationProfile type: Observation elements: code: type: CodeableConcept short: BMI percentile per age and sex for youth 2-20 mustSupport: true pattern: type: CodeableConcept value: coding: - {code: 59576-9, system: 'http://loinc.org'} index: 0 subject: type: Reference mustSupport: true refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient'] index: 1 valueQuantity: mustSupport: true index: 2 elements: value: {type: decimal, mustSupport: true, index: 3} unit: {type: string, mustSupport: true, index: 4} system: type: uri pattern: {type: Uri, value: 'http://unitsofmeasure.org'} mustSupport: true index: 5 code: type: code short: Coded responses from the common UCUM units for vital signs value set. pattern: {type: Code, value: '%'} mustSupport: true index: 6 required: [value, unit, system, code] package_version: 3.1.1 class: profile kind: resource url: http://hl7.org/fhir/us/core/StructureDefinition/pediatric-bmi-for-age base: http://hl7.org/fhir/StructureDefinition/vitalsigns version: 3.1.1