0 1 2
None Nonprimary surgical procedure performed
Nonprimary surgical procedure to other regional sites
Nonprimary surgical procedure to distant lymph nodes
4 5 9
Nonprimary surgical procedure to distant site Combination of codes Unknown
Surgical Procedure/Other Site Codes
The codes for surgical procedure/other site are shown on this slide. The codes are the same for all sites and are hierarchical. If more than one procedure is performed as part of first course treatment, code the procedure with the highest code. The surgical ablation of liver metastasis for a patient with rectal cancer would be assigned code 4, nonprimary surgical procedure to distant site.