• 1 - A condition where surgery has been performed (Surgical code)
• 2 - A condition where no surgery has been performed (non-surgical code)
  • 3 - Gastrointestinal
    • 10 - Abdominal wall or peritoneum
      • 39 - Tumour or malignancy
        • 1 - Primary retroperitoneal malignancy
        • 2 - Secondary retroperitoneal malignancy
        • 3 - Pseudomyxoma peritonei