Extension Size AJCC 7 Table
Notes
**Note**: For CS Extension codes 110, 125-300, 410, 425, 450, and 470 ONLY, the T category for AJCC 7 staging 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 |
|---|---|---|
| 110, 125, 200, 300, 410, 425, 450, 470 | 000, 996-998 | ERROR: |
| 110, 410, 450 | 001-020, 990-992 | T1a |
| 125, 200, 300, 425, 470 | 001-020, 990-992 | T1NOS |
| 110, 125, 200, 300, 410, 425, 450, 470 | 021-989, 993-995 | T1b |
| 110, 125, 200, 300, 410, 425, 470 | 999 | T1NOS |
| 450 | 999 | T1a |
| CS Extension | CS Tumor Size | AJCC 7 T |
|---|---|---|
| 110 | 000 | ERROR: |
| 125 | 000 | ERROR: |
| 200 | 000 | ERROR: |
| 300 | 000 | ERROR: |
| 410 | 000 | ERROR: |
| 425 | 000 | ERROR: |
| 450 | 000 | ERROR: |
| 470 | 000 | ERROR: |
| 110 | 001-020 | T1a |
| 125 | 001-020 | T1NOS |
| 200 | 001-020 | T1NOS |
| 300 | 001-020 | T1NOS |
| 410 | 001-020 | T1a |
| 425 | 001-020 | T1NOS |
| 450 | 001-020 | T1a |
| 470 | 001-020 | T1NOS |
| 110 | 021-989 | T1b |
| 125 | 021-989 | T1b |
| 200 | 021-989 | T1b |
| 300 | 021-989 | T1b |
| 410 | 021-989 | T1b |
| 425 | 021-989 | T1b |
| 450 | 021-989 | T1b |
| 470 | 021-989 | T1b |
| 110 | 990-992 | T1a |
| 125 | 990-992 | T1NOS |
| 200 | 990-992 | T1NOS |
| 300 | 990-992 | T1NOS |
| 410 | 990-992 | T1a |
| 425 | 990-992 | T1NOS |
| 450 | 990-992 | T1a |
| 470 | 990-992 | T1NOS |
| 110 | 993-995 | T1b |
| 125 | 993-995 | T1b |
| 200 | 993-995 | T1b |
| 300 | 993-995 | T1b |
| 410 | 993-995 | T1b |
| 425 | 993-995 | T1b |
| 450 | 993-995 | T1b |
| 470 | 993-995 | T1b |
| 110 | 996-998 | ERROR: |
| 125 | 996-998 | ERROR: |
| 200 | 996-998 | ERROR: |
| 300 | 996-998 | ERROR: |
| 410 | 996-998 | ERROR: |
| 425 | 996-998 | ERROR: |
| 450 | 996-998 | ERROR: |
| 470 | 996-998 | ERROR: |
| 110 | 999 | T1NOS |
| 125 | 999 | T1NOS |
| 200 | 999 | T1NOS |
| 300 | 999 | T1NOS |
| 410 | 999 | T1NOS |
| 425 | 999 | T1NOS |
| 450 | 999 | T1a |
| 470 | 999 | T1NOS |