Extension Size Table

Notes

**Note**: For CS Extension codes 100-650 ONLY, the T category is assigned based on the value of CS Tumor Size as shown in this table.
CS Extension CS Tumor Size AJCC 7 T AJCC 6 T
100, 300, 405, 410, 415, 500, 535, 550, 600, 650 000, 997-998 ERROR: ERROR:
100, 300, 405, 410, 415, 500, 535, 550, 600, 650 001-020, 990-991 T1 T1
100, 300, 405, 410, 415, 500, 535, 550, 600, 650 021-040 T2 T2
100, 300, 405, 410, 415, 500, 535, 550, 600, 650 041-989 T3 T3
100, 300, 405, 500, 535, 550, 600, 650 992 T1 T1
410 992, 993-994, 995, 999 T2 T2
415 992, 993-994, 995, 996, 999 T3 T3
100, 300, 500, 535, 550, 600, 650 993-994 T2 T2
405 993-994, 995, 999 T1 T1
100, 300, 500, 535, 550, 600, 650 995 T3 T3
100, 300, 405, 410, 500, 535, 550, 600, 650 996 T3 T3
100, 300, 500, 535, 550, 600, 650 999 TX TX
CS Extension CS Tumor Size AJCC 7 T AJCC 6 T
100 000 ERROR: ERROR:
300 000 ERROR: ERROR:
405 000 ERROR: ERROR:
410 000 ERROR: ERROR:
415 000 ERROR: ERROR:
500 000 ERROR: ERROR:
535 000 ERROR: ERROR:
550 000 ERROR: ERROR:
600 000 ERROR: ERROR:
650 000 ERROR: ERROR:
100 001-020 T1 T1
300 001-020 T1 T1
405 001-020 T1 T1
410 001-020 T1 T1
415 001-020 T1 T1
500 001-020 T1 T1
535 001-020 T1 T1
550 001-020 T1 T1
600 001-020 T1 T1
650 001-020 T1 T1
100 021-040 T2 T2
300 021-040 T2 T2
405 021-040 T2 T2
410 021-040 T2 T2
415 021-040 T2 T2
500 021-040 T2 T2
535 021-040 T2 T2
550 021-040 T2 T2
600 021-040 T2 T2
650 021-040 T2 T2
100 041-989 T3 T3
300 041-989 T3 T3
405 041-989 T3 T3
410 041-989 T3 T3
415 041-989 T3 T3
500 041-989 T3 T3
535 041-989 T3 T3
550 041-989 T3 T3
600 041-989 T3 T3
650 041-989 T3 T3
100 990-991 T1 T1
300 990-991 T1 T1
405 990-991 T1 T1
410 990-991 T1 T1
415 990-991 T1 T1
500 990-991 T1 T1
535 990-991 T1 T1
550 990-991 T1 T1
600 990-991 T1 T1
650 990-991 T1 T1
100 992 T1 T1
300 992 T1 T1
405 992 T1 T1
410 992 T2 T2
415 992 T3 T3
500 992 T1 T1
535 992 T1 T1
550 992 T1 T1
600 992 T1 T1
650 992 T1 T1
100 993-994 T2 T2
300 993-994 T2 T2
405 993-994 T1 T1
410 993-994 T2 T2
415 993-994 T3 T3
500 993-994 T2 T2
535 993-994 T2 T2
550 993-994 T2 T2
600 993-994 T2 T2
650 993-994 T2 T2
100 995 T3 T3
300 995 T3 T3
405 995 T1 T1
410 995 T2 T2
415 995 T3 T3
500 995 T3 T3
535 995 T3 T3
550 995 T3 T3
600 995 T3 T3
650 995 T3 T3
100 996 T3 T3
300 996 T3 T3
405 996 T3 T3
410 996 T3 T3
415 996 T3 T3
500 996 T3 T3
535 996 T3 T3
550 996 T3 T3
600 996 T3 T3
650 996 T3 T3
100 997-998 ERROR: ERROR:
300 997-998 ERROR: ERROR:
405 997-998 ERROR: ERROR:
410 997-998 ERROR: ERROR:
415 997-998 ERROR: ERROR:
500 997-998 ERROR: ERROR:
535 997-998 ERROR: ERROR:
550 997-998 ERROR: ERROR:
600 997-998 ERROR: ERROR:
650 997-998 ERROR: ERROR:
100 999 TX TX
300 999 TX TX
405 999 T1 T1
410 999 T2 T2
415 999 T3 T3
500 999 TX TX
535 999 TX TX
550 999 TX TX
600 999 TX TX
650 999 TX TX