Collaborative Stage for TNM 7 - Revised 11/12/2010 [ Schema ]
| Code | Description | 
| 010 | Low grade | 
| 020 | High grade | 
| 987 | Not applicable: Histology not mucoepidermoid carcinoma | 
| 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.)  | 
| 999 | Unknown or no information Not documented in patient record  |