SEER Lymph Node

Field Length: 1

            (Required field with all cases diagnosed from January 1, 2000 to December 31, 2003.)

 As of 1-1-2004, leave this field blank and record this information in the Collaborative Stage Item #30570 instead.                                                                                        

If the diagnosis date is before 1-1-2004, record the highest specific lymph node chain that is involved by tumor.

Use the instructions in the SEER Extent of Disease 1998 Codes and Coding Instructions manual, pages 8-9, and the tables that follow, to code this field.

Nodes which are considered "regional nodes" are defined by primary site in the AJCC Manual for Staging of Cancer.