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SEER Training Modules

Derived Staging

Derived staging information is given so that the user may compare these codes to their manual codes in the earlier exercises.

Stage Code

  • T: pT3 NOS
  • N: cN0
  • M: cM0
  • AJCC Stage: III NOS
  • Summary Stage: 7, distant

Derived TNM stage is different from directly coded Stage due to the instruction in Collaborative Stage which allows the lymph nodes to be coded as not involved.