Alternate Name Item # Length Source of Standard Implemented Year Implemented Version Retired Year Retired Version Column #
Site--Specific Surgery (pre-98 SEER)
1640 2 SEER 2011 12.2 1617 - 1618
Description
Field for pre-1996 surgery codes for CoC and pre-1998 surgery codes for SEER. Surgery codes used 1998 and later can be backward converted into the older codes and the converted value can be stored in this field. See Chapter V, Unresolved Issues, for discussion of CoC/SEER differences in coding treatment.