• 1 - A condition where surgery has been performed (Surgical code)
  • 2 - Cardiovascular
    • 4 - Heart valves
      • 8 - Congenital or acquired deformity or abnormality
      • 9 - Degeneration
      • 27 - Infection
      • 39 - Tumour or malignancy
      • 41 - Vascular
      • 56 - Trauma (or traumatic rupture)
      • 57 - Non-traumatic rupture
• 2 - A condition where no surgery has been performed (non-surgical code)