• 1 - A condition where surgery has been performed (Surgical code)
    • 2 - Cardiovascular
      • 5 - Conducting system or rhythm disturbances
        • 8 - Congenital or acquired deformity or abnormality
        • 27 - Infection
        • 32 - Over-activity (tachyarrhythmia or ectopy)
        • 40 - Under-activity (bradyarrhythmia)
  • 2 - A condition where no surgery has been performed (non-surgical code)