• 1 - A condition where surgery has been performed (Surgical code)
  • 2 - Cardiovascular
    • 13 - Pulmonary vasculature
      • 8 - Congenital or acquired deformity or abnormality
        • 1 - Anomalous pulmonary venous drainage
        • 2 - Pulmonary arterio-venous malformation
        • 3 - Transposition of great arteries
        • 4 - Patent ductus arteriosus
        • 5 - Truncus arteriosus
• 2 - A condition where no surgery has been performed (non-surgical code)