Collaborative Stage Data Set - Revised 05/26/2011 FINAL
| 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.) |
| 998 | No pathologic examination of primary site |
| 999 | Unknown or no information Not documented in patient record |