• 1 - A condition where surgery has been performed (Surgical code)
  • 2 - Cardiovascular
    • 13 - Pulmonary vasculature
      • 30 - Obstruction
        • 1 - Pulmonary embolus (thrombus)
        • 2 - Fat embolus
        • 3 - Venous air embolus
        • 4 - Pulmonary tumour embolus
        • 5 - Amniotic fluid embolus
• 2 - A condition where no surgery has been performed (non-surgical code)