Extension Size Table

Notes

**Note**: For Extension codes 100, 200, 300, 305, 400, 420, 450, and 500 ONLY, the T category is assigned based on the value of CS Tumor Size and CS Extension as shown here.
CS Extension CS Tumor Size AJCC 7 T AJCC 6 T
100, 200, 300, 305, 400, 420, 450, 455, 500 000, 996-998 ERROR: ERROR:
100, 300, 305, 420 001-020, 990-992 T1 T1
200, 400, 450, 455, 500 001-020, 990-992, 999 T2 T2
100, 200, 300, 305, 400, 420, 450, 455, 500 021-040, 993-994 T2 T2
100, 200, 300, 305, 400, 420, 450, 455, 500 041-989, 995 T3 T3
100, 300, 420 999 TX TX
305 999 T1 T1
CS Extension CS Tumor Size AJCC 7 T AJCC 6 T
100 000 ERROR: ERROR:
200 000 ERROR: ERROR:
300 000 ERROR: ERROR:
305 000 ERROR: ERROR:
400 000 ERROR: ERROR:
420 000 ERROR: ERROR:
450 000 ERROR: ERROR:
455 000 ERROR: ERROR:
500 000 ERROR: ERROR:
100 001-020 T1 T1
200 001-020 T2 T2
300 001-020 T1 T1
305 001-020 T1 T1
400 001-020 T2 T2
420 001-020 T1 T1
450 001-020 T2 T2
455 001-020 T2 T2
500 001-020 T2 T2
100 021-040 T2 T2
200 021-040 T2 T2
300 021-040 T2 T2
305 021-040 T2 T2
400 021-040 T2 T2
420 021-040 T2 T2
450 021-040 T2 T2
455 021-040 T2 T2
500 021-040 T2 T2
100 041-989 T3 T3
200 041-989 T3 T3
300 041-989 T3 T3
305 041-989 T3 T3
400 041-989 T3 T3
420 041-989 T3 T3
450 041-989 T3 T3
455 041-989 T3 T3
500 041-989 T3 T3
100 990-992 T1 T1
200 990-992 T2 T2
300 990-992 T1 T1
305 990-992 T1 T1
400 990-992 T2 T2
420 990-992 T1 T1
450 990-992 T2 T2
455 990-992 T2 T2
500 990-992 T2 T2
100 993-994 T2 T2
200 993-994 T2 T2
300 993-994 T2 T2
305 993-994 T2 T2
400 993-994 T2 T2
420 993-994 T2 T2
450 993-994 T2 T2
455 993-994 T2 T2
500 993-994 T2 T2
100 995 T3 T3
200 995 T3 T3
300 995 T3 T3
305 995 T3 T3
400 995 T3 T3
420 995 T3 T3
450 995 T3 T3
455 995 T3 T3
500 995 T3 T3
100 996-998 ERROR: ERROR:
200 996-998 ERROR: ERROR:
300 996-998 ERROR: ERROR:
305 996-998 ERROR: ERROR:
400 996-998 ERROR: ERROR:
420 996-998 ERROR: ERROR:
450 996-998 ERROR: ERROR:
455 996-998 ERROR: ERROR:
500 996-998 ERROR: ERROR:
100 999 TX TX
200 999 T2 T2
300 999 TX TX
305 999 T1 T1
400 999 T2 T2
420 999 TX TX
450 999 T2 T2
455 999 T2 T2
500 999 T2 T2