Summary Stage Code Descriptions

There are six main categories in the summary staging system. To learn more about a stage category, click a stage name in the list below.

• Code 0: In situ
• Code 1: Localized
• Codes 2-4: Regional
• Code 7: Distant
• Codes 8 and 9: Benign/Borderline and Unknown if Extension or Metastasis

Updated: December 15, 2023