• 1 - A condition where surgery has been performed (Surgical code)
  • 1 - Respiratory
    • 5 - Pleura or mediastinum
      • 8 - Congenital or acquired deformity or abnormality
        • 1 - Pleural thickening or calcification
        • 2 - Hiatus hernia
        • 3 - Diaphragmatic hernia
        • 4 - Pleural effusion
        • 5 - Spontaneous pneumothorax
• 2 - A condition where no surgery has been performed (non-surgical code)