Registrar Staging Assistant (SEER*RSA)

The Registrar Staging Assistant (SEER*RSA) website is intended for use by cancer registrars to help with assigning TNM 7th edition stage and the coding of predictive and prognostic factors.

The data on this site can be used to help you do the following:

  • Determine the International Union Against Cancer (UICC) TNM 7th edition stage and Collaborative Stage v.02.05.50.
    UICC 7th edition and AJCC 7th edition TNM categories and stage groups are very similar; however, there are some differences between UICC 7th edition and AJCC 7th edition.
  • Code predictive and prognostic factors.