{
  "O1868": {
    "_ref": "O1868_OB_FETAL_DIAGNOSIS_ULTRASOUND_3401170955873756", 
    "demo": {
      "BirthYear": "1993", 
      "DeathYear": " ", 
      "Ethnicity": "Non-Hispanic", 
      "FirstRace": "White", 
      "MultiRacial": "No", 
      "Sex": "Female"
    }, 
    "exam": {
      "AgeAtExam": "27", 
      "IsAbnormal": "No", 
      "PrimaryDiagnosis": "Retained intrauterine contraceptive device in pregnancy, second trimester", 
      "ProcedureName": "OB U/S DETAILED, SINGLE GESTATION", 
      "SmokingStatus": "Never Assessed", 
      "Status": "Alive", 
      "Trimester": "2"
    }
  }
}