Extension Size Table

Notes

**Note**: For CS Extension codes 100-350 ONLY, the T category is assigned based on the value of CS Tumor Size and CS Extension as shown in this table.
CS Extension CS Tumor Size AJCC 7 T AJCC 6 T
100, 300, 305, 310, 350 000, 997-998 ERROR: ERROR:
100, 300, 305, 310, 350 001-020, 990-991 T1 T1
100, 300, 305, 310, 350 021-040 T2 T2
100, 300, 305, 310, 350 041-989, 996 T3 T3
100, 300, 305, 350 992 T1 T1
310 992, 993-994, 995, 999 T2 T2
100, 300, 350 993-994 T2 T2
305 993-994, 995, 999 T1 T1
100, 300, 350 995 T3 T3
100, 300, 350 999 TX TX
CS Extension CS Tumor Size AJCC 7 T AJCC 6 T
100 000 ERROR: ERROR:
300 000 ERROR: ERROR:
305 000 ERROR: ERROR:
310 000 ERROR: ERROR:
350 000 ERROR: ERROR:
100 001-020 T1 T1
300 001-020 T1 T1
305 001-020 T1 T1
310 001-020 T1 T1
350 001-020 T1 T1
100 021-040 T2 T2
300 021-040 T2 T2
305 021-040 T2 T2
310 021-040 T2 T2
350 021-040 T2 T2
100 041-989 T3 T3
300 041-989 T3 T3
305 041-989 T3 T3
310 041-989 T3 T3
350 041-989 T3 T3
100 990-991 T1 T1
300 990-991 T1 T1
305 990-991 T1 T1
310 990-991 T1 T1
350 990-991 T1 T1
100 992 T1 T1
300 992 T1 T1
305 992 T1 T1
310 992 T2 T2
350 992 T1 T1
100 993-994 T2 T2
300 993-994 T2 T2
305 993-994 T1 T1
310 993-994 T2 T2
350 993-994 T2 T2
100 995 T3 T3
300 995 T3 T3
305 995 T1 T1
310 995 T2 T2
350 995 T3 T3
100 996 T3 T3
300 996 T3 T3
305 996 T3 T3
310 996 T3 T3
350 996 T3 T3
100 997-998 ERROR: ERROR:
300 997-998 ERROR: ERROR:
305 997-998 ERROR: ERROR:
310 997-998 ERROR: ERROR:
350 997-998 ERROR: ERROR:
100 999 TX TX
300 999 TX TX
305 999 T1 T1
310 999 T2 T2
350 999 TX TX