• 1 - A condition where surgery has been performed (Surgical code)
  • 1 - Respiratory
    • 4 - Lungs
      • 27 - Infection
        • 1 - Bacterial pneumonia
        • 2 - Fungal or yeast pneumonia
        • 4 - Parasitic pneumonia
        • 5 - Pneumonia, no organism isolated
        • 6 - Tuberculosis
        • 7 - Lung abscess
        • 8 - Viral pneumonia, non-influenza
        • 9 - Viral pneumonia, influenza
        • 10 - Pandemic influenza, suspected
        • 11 - Pandemic influenza, confirmed
• 2 - A condition where no surgery has been performed (non-surgical code)