Extension Size Table
Notes
**Note**: For CS Extension codes 100-800, 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, 110, 120, 300, 302, 305, 310, 312, 315, 320, 322, 325, 400, 410, 420, 600, 610, 620, 800 | 000, 997-998 | ERROR: | ERROR: |
| 100, 300, 322, 325, 400 | 001-050, 990-994 | T1NOS | T1NOS |
| 110, 302, 305, 310, 410, 610 | 001-050, 990-994 | T1a | T1a |
| 120, 312, 315, 320, 420, 600, 620, 800 | 001-050, 990-994, 995 | T1b | T1b |
| 100, 300, 322, 325, 400 | 051-989 | T2NOS | T2NOS |
| 110, 302, 305, 310, 410, 610 | 051-989 | T2a | T2a |
| 120, 312, 315, 320, 420, 600, 620, 800 | 051-989 | T2b | T2b |
| 100, 300, 322, 400 | 995 | T1NOS | T1NOS |
| 110, 302, 310, 410, 610 | 995 | T1a | T1a |
| 305 | 995, 996, 999 | T2a | T2a |
| 325 | 995, 996, 999 | T2NOS | T2NOS |
| 100, 300, 400 | 996 | T2NOS | T2NOS |
| 110, 302, 310, 410, 610 | 996 | T2a | T2a |
| 120, 315, 320, 420, 600, 620, 800 | 996 | T2b | T2b |
| 312 | 996, 999 | T1b | T1b |
| 322 | 996, 999 | T1NOS | T1NOS |
| 100, 110, 120, 300, 310, 320, 400, 410, 420, 600, 610, 620, 800 | 999 | TX | TX |
| 302 | 999 | T1a | T1a |
| 315 | 999 | T2b | T2b |
| CS Extension | CS Tumor Size | AJCC 7 T | AJCC 6 T |
|---|---|---|---|
| 100 | 000 | ERROR: | ERROR: |
| 110 | 000 | ERROR: | ERROR: |
| 120 | 000 | ERROR: | ERROR: |
| 300 | 000 | ERROR: | ERROR: |
| 302 | 000 | ERROR: | ERROR: |
| 305 | 000 | ERROR: | ERROR: |
| 310 | 000 | ERROR: | ERROR: |
| 312 | 000 | ERROR: | ERROR: |
| 315 | 000 | ERROR: | ERROR: |
| 320 | 000 | ERROR: | ERROR: |
| 322 | 000 | ERROR: | ERROR: |
| 325 | 000 | ERROR: | ERROR: |
| 400 | 000 | ERROR: | ERROR: |
| 410 | 000 | ERROR: | ERROR: |
| 420 | 000 | ERROR: | ERROR: |
| 600 | 000 | ERROR: | ERROR: |
| 610 | 000 | ERROR: | ERROR: |
| 620 | 000 | ERROR: | ERROR: |
| 800 | 000 | ERROR: | ERROR: |
| 100 | 001-050 | T1NOS | T1NOS |
| 110 | 001-050 | T1a | T1a |
| 120 | 001-050 | T1b | T1b |
| 300 | 001-050 | T1NOS | T1NOS |
| 302 | 001-050 | T1a | T1a |
| 305 | 001-050 | T1a | T1a |
| 310 | 001-050 | T1a | T1a |
| 312 | 001-050 | T1b | T1b |
| 315 | 001-050 | T1b | T1b |
| 320 | 001-050 | T1b | T1b |
| 322 | 001-050 | T1NOS | T1NOS |
| 325 | 001-050 | T1NOS | T1NOS |
| 400 | 001-050 | T1NOS | T1NOS |
| 410 | 001-050 | T1a | T1a |
| 420 | 001-050 | T1b | T1b |
| 600 | 001-050 | T1b | T1b |
| 610 | 001-050 | T1a | T1a |
| 620 | 001-050 | T1b | T1b |
| 800 | 001-050 | T1b | T1b |
| 100 | 051-989 | T2NOS | T2NOS |
| 110 | 051-989 | T2a | T2a |
| 120 | 051-989 | T2b | T2b |
| 300 | 051-989 | T2NOS | T2NOS |
| 302 | 051-989 | T2a | T2a |
| 305 | 051-989 | T2a | T2a |
| 310 | 051-989 | T2a | T2a |
| 312 | 051-989 | T2b | T2b |
| 315 | 051-989 | T2b | T2b |
| 320 | 051-989 | T2b | T2b |
| 322 | 051-989 | T2NOS | T2NOS |
| 325 | 051-989 | T2NOS | T2NOS |
| 400 | 051-989 | T2NOS | T2NOS |
| 410 | 051-989 | T2a | T2a |
| 420 | 051-989 | T2b | T2b |
| 600 | 051-989 | T2b | T2b |
| 610 | 051-989 | T2a | T2a |
| 620 | 051-989 | T2b | T2b |
| 800 | 051-989 | T2b | T2b |
| 100 | 990-994 | T1NOS | T1NOS |
| 110 | 990-994 | T1a | T1a |
| 120 | 990-994 | T1b | T1b |
| 300 | 990-994 | T1NOS | T1NOS |
| 302 | 990-994 | T1a | T1a |
| 305 | 990-994 | T1a | T1a |
| 310 | 990-994 | T1a | T1a |
| 312 | 990-994 | T1b | T1b |
| 315 | 990-994 | T1b | T1b |
| 320 | 990-994 | T1b | T1b |
| 322 | 990-994 | T1NOS | T1NOS |
| 325 | 990-994 | T1NOS | T1NOS |
| 400 | 990-994 | T1NOS | T1NOS |
| 410 | 990-994 | T1a | T1a |
| 420 | 990-994 | T1b | T1b |
| 600 | 990-994 | T1b | T1b |
| 610 | 990-994 | T1a | T1a |
| 620 | 990-994 | T1b | T1b |
| 800 | 990-994 | T1b | T1b |
| 100 | 995 | T1NOS | T1NOS |
| 110 | 995 | T1a | T1a |
| 120 | 995 | T1b | T1b |
| 300 | 995 | T1NOS | T1NOS |
| 302 | 995 | T1a | T1a |
| 305 | 995 | T2a | T2a |
| 310 | 995 | T1a | T1a |
| 312 | 995 | T1b | T1b |
| 315 | 995 | T1b | T1b |
| 320 | 995 | T1b | T1b |
| 322 | 995 | T1NOS | T1NOS |
| 325 | 995 | T2NOS | T2NOS |
| 400 | 995 | T1NOS | T1NOS |
| 410 | 995 | T1a | T1a |
| 420 | 995 | T1b | T1b |
| 600 | 995 | T1b | T1b |
| 610 | 995 | T1a | T1a |
| 620 | 995 | T1b | T1b |
| 800 | 995 | T1b | T1b |
| 100 | 996 | T2NOS | T2NOS |
| 110 | 996 | T2a | T2a |
| 120 | 996 | T2b | T2b |
| 300 | 996 | T2NOS | T2NOS |
| 302 | 996 | T2a | T2a |
| 305 | 996 | T2a | T2a |
| 310 | 996 | T2a | T2a |
| 312 | 996 | T1b | T1b |
| 315 | 996 | T2b | T2b |
| 320 | 996 | T2b | T2b |
| 322 | 996 | T1NOS | T1NOS |
| 325 | 996 | T2NOS | T2NOS |
| 400 | 996 | T2NOS | T2NOS |
| 410 | 996 | T2a | T2a |
| 420 | 996 | T2b | T2b |
| 600 | 996 | T2b | T2b |
| 610 | 996 | T2a | T2a |
| 620 | 996 | T2b | T2b |
| 800 | 996 | T2b | T2b |
| 100 | 997-998 | ERROR: | ERROR: |
| 110 | 997-998 | ERROR: | ERROR: |
| 120 | 997-998 | ERROR: | ERROR: |
| 300 | 997-998 | ERROR: | ERROR: |
| 302 | 997-998 | ERROR: | ERROR: |
| 305 | 997-998 | ERROR: | ERROR: |
| 310 | 997-998 | ERROR: | ERROR: |
| 312 | 997-998 | ERROR: | ERROR: |
| 315 | 997-998 | ERROR: | ERROR: |
| 320 | 997-998 | ERROR: | ERROR: |
| 322 | 997-998 | ERROR: | ERROR: |
| 325 | 997-998 | ERROR: | ERROR: |
| 400 | 997-998 | ERROR: | ERROR: |
| 410 | 997-998 | ERROR: | ERROR: |
| 420 | 997-998 | ERROR: | ERROR: |
| 600 | 997-998 | ERROR: | ERROR: |
| 610 | 997-998 | ERROR: | ERROR: |
| 620 | 997-998 | ERROR: | ERROR: |
| 800 | 997-998 | ERROR: | ERROR: |
| 100 | 999 | TX | TX |
| 110 | 999 | TX | TX |
| 120 | 999 | TX | TX |
| 300 | 999 | TX | TX |
| 302 | 999 | T1a | T1a |
| 305 | 999 | T2a | T2a |
| 310 | 999 | TX | TX |
| 312 | 999 | T1b | T1b |
| 315 | 999 | T2b | T2b |
| 320 | 999 | TX | TX |
| 322 | 999 | T1NOS | T1NOS |
| 325 | 999 | T2NOS | T2NOS |
| 400 | 999 | TX | TX |
| 410 | 999 | TX | TX |
| 420 | 999 | TX | TX |
| 600 | 999 | TX | TX |
| 610 | 999 | TX | TX |
| 620 | 999 | TX | TX |
| 800 | 999 | TX | TX |