Collaborative Stage for TNM 7 - Revised 11/12/2010 [ Schema ]
| Code | Description | 
| 000 | Omentectomy not performed during first course surgery | 
| 010 | Omentectomy performed during first course surgery | 
| 988 | Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 988 may result in an edit error.)  | 
| 998 | No surgery performed as part of the first course of treatment | 
| 999 | Unknown or no information Not documented in patient record  |