• 1 - A condition where surgery has been performed (Surgical code)
  • 2 - Cardiovascular
    • 1 - Coronary arteries
      • 30 - Obstruction
        • 1 - Acute myocardial infarction
        • 2 - Acute coronary syndrome (acute crescendo or unstable angina)
        • 3 - Chronic angina
        • 4 - CABG for acute myocardial infarction
        • 5 - CABG for acute coronary syndrome (acute crescendo or unstable angina)
        • 6 - CABG for chronic angina
        • 7 - Myocardial ischaemia without angina
        • 8 - CABG for asymptomatic artery disease
• 2 - A condition where no surgery has been performed (non-surgical code)