Collaborative Stage for TNM 7 - Revised 01/27/2010 [ Schema ]
| Code | Description |
| 000 | 0 mitoses per 10 high-power fields (40x field) 0 mitoses per 2 square millimeters Mitoses absent No mitoses present |
| 001 | .1 mitoses per 10 high-power fields (40x field) .1 mitoses per 2 square millimeters |
| 002 | .2 mitoses per 10 high-power fields (40x field) .2 mitoses per 2 square millimeters |
| 003 | .3 mitoses per 10 high-power fields (40x field) .3 mitoses per 2 square millimeters |
| 004 | .4 mitoses per 10 high-power fields (40x field) .4 mitoses per 2 square millimeters |
| 005 | .5 mitoses per 10 high-power fields (40x field) .5 mitoses per 2 square millimeters |
| 006 | .6 mitoses per 10 high-power fields (40x field) .6 mitoses per 2 square millimeters |
| 007 | .7 mitoses per 10 high-power fields (40x field) .7 mitoses per 2 square millimeters |
| 008 | .8 mitoses per 10 high-power fields (40x field) .8 mitoses per 2 square millimeters |
| 009 | .9 mitoses per 10 high-power fields (40x field) .9 mitoses per 2 square millimeters Stated as less than 1 mitoses per 10 high-power fields (40x field) Stated as less than 1 mitoses per 2 square millimeters |
| 010-100 | 1-10 mitoses per 10 high-power fields (40x field) 1-10 mitoses per 2 square millimeters |
| 110 | 11 or more mitoses per 10 high-power fields (40x field) 11 or more mitoses per 2 square millimeters |
| 888 | OBSOLETE DATA CONVERTED V0200 See code 988: Not applicable for this site |
| 988 | Not applicable: Information not collected for this case (May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.) |
| 990 | Specific number not stated, described less than or equal to 4 mitoses per 10 high-power fields (40x field) Specific number not stated, described less than or equal to 4 mitoses per square millimeter |
| 995 | Specific number not stated, described as greater than 4 mitoses per 10 high-power fields (40x field) Specific number not stated, described as greater than 4 mitoses per square millimeters |
| 999 | Unknown Not stated Not documented in patient record |