description: To promote interoperability and adoption through common implementation, this profile sets minimum expectations for the Observation resource to record, search, and fetch pediatric body mass index (BMI) percentile per age and sex for youth 2-20 observations in FHIR using a standard LOINC code and UCUM units of measure. It is based on the US Core Vital Signs Profile and identifies which *additional* core elements, extensions, vocabularies, and value sets **SHALL** be present and constrains the way the elements are used when using the profile. It provides the floor for standards development for specific use cases.
package_name: hl7.fhir.us.core
derivation: constraint
name: USCorePediatricBMIforAgeObservationProfile
type: Observation
elements:
  code:
    type: CodeableConcept
    short: (USCDI) 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
  valueQuantity:
    short: (USCDI) Vital Signs Value
    mustSupport: true
    index: 1
    elements:
      value: {type: decimal, short: (USCDI) Numerical value (with implicit precision), mustSupport: true, index: 2}
      unit: {type: string, short: (USCDI) Unit representation, mustSupport: true, index: 3}
      system:
        short: (USCDI) System that defines coded unit form
        pattern: {type: Uri, value: 'http://unitsofmeasure.org'}
        type: uri
        mustSupport: true
        index: 4
      code:
        pattern: {type: Code, value: '%'}
        short: (USCDI) Coded responses from the common UCUM units for vital signs value set.
        type: code
        mustSupport: true
        index: 5
    required: [value, unit, system, code]
package_version: 6.0.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/core/StructureDefinition/pediatric-bmi-for-age
base: http://hl7.org/fhir/us/core/StructureDefinition/us-core-vital-signs
version: 6.0.0