description: The obstetric estimate of the infant’s gestation in completed weeks based on the birth/delivery attendant’s final estimate of gestation which should be determined by all perinatal factors and assessments such as ultrasound, but not the neonatal exam. Migrated from VRCL.
package_name: hl7.fhir.us.bfdr
derivation: constraint
name: ObservationGestationalAgeAtDelivery
type: Observation
elements:
  code:
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 11884-4, system: 'http://loinc.org'}
    index: 0
  subject:
    type: Reference
    refers: ['http://hl7.org/fhir/us/bfdr/StructureDefinition/Patient-decedent-fetus', 'http://hl7.org/fhir/us/vr-common-library/StructureDefinition/Patient-child-vr']
    index: 1
  value:
    extensions: {}
    elements:
      extension:
        elements:
          value:
            short: To reflect the relevant edit possibilities for estimate of gestation.
            choices: []
            index: 7
  valueQuantity: {type: Quantity, choiceOf: value, index: 4}
  value[x]:
    elements:
      system:
        pattern: {type: Uri, value: 'http://unitsofmeasure.org'}
        mustSupport: true
        index: 8
      code:
        pattern: {type: Code, value: wk}
        mustSupport: true
        index: 9
    required: [system, code]
  method: {mustSupport: true, index: 10}
package_version: 2.0.0-ballot
class: profile
kind: resource
url: http://hl7.org/fhir/us/bfdr/StructureDefinition/Observation-gestational-age-at-delivery
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 2.0.0-ballot
required: [value, subject, valueQuantity]