• 1 - A condition where surgery has been performed (Surgical code)
    • 1 - Respiratory
      • 9 - Chest wall or diaphragm disorders causing respiratory failure
        • 8 - Congenital or acquired deformity or abnormality
          • 1 - Thoracoplasty
          • 2 - Kyphoscoliosis
          • 3 - Congenital chest wall deformity
          • 4 - Congenital muscular dystrophy
          • 5 - Diaphragmatic hernia
          • 6 - Ankylosing spondylitis
  • 2 - A condition where no surgery has been performed (non-surgical code)