description: Describes the Body Mass Index (BMI) of the patient.
package_name: de.medizininformatikinitiative.kerndatensatz.seltene
derivation: constraint
name: MII_PR_Seltene_Bodymassindex
type: Observation
elements:
  category:
    mustSupport: true
    index: 1
    elements:
      coding:
        elements:
          system:
            pattern: {type: Uri, value: 'http://terminology.hl7.org/CodeSystem/observation-category'}
            index: 2
          code:
            pattern: {type: Code, value: vital-signs}
            index: 3
          display:
            pattern: {type: String, value: Vital Signs}
            index: 4
  value[x]:
    elements:
      value: {index: 13}
      unit:
        pattern: {type: String, value: kg/m2}
        index: 14
      system:
        pattern: {type: Uri, value: 'http://unitsofmeasure.org'}
        index: 15
      code:
        pattern: {type: Code, value: kg/m2}
        index: 16
  valueQuantity: {type: Quantity, mustSupport: true, choiceOf: value, index: 12}
  value:
    mustSupport: true
    choices: [valueQuantity]
    index: 11
  effectiveDateTime: {type: dateTime, mustSupport: true, choiceOf: effective, index: 9}
  status: {mustSupport: true, index: 0}
  effective:
    mustSupport: true
    choices: [effectiveDateTime]
    index: 8
  code:
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 39156-5, system: 'http://loinc.org', display: 'Body mass index (BMI) [Ratio]'}
    index: 5
  subject:
    type: Reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/StructureDefinition/Patient']
    index: 6
package_version: 2026.0.0-ballot
class: profile
kind: resource
url: https://www.medizininformatik-initiative.de/fhir/ext/modul-seltene/StructureDefinition/mii-pr-seltene-bodymassindex
base: http://hl7.org/fhir/StructureDefinition/Observation
version: null