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 |