Collaborative Stage Data Set - Revised 05/13/2011 FINAL
| Code | Description |
| 010 | Circumscribed/nodular |
| 020 | Diffusely infiltrative |
| 030 | OBSOLETE DATA CONVERTED V0203 See code 997 Sample inadequate to evaluate as stated in pathology report |
| 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.) |
| 997 | Test performed, results not in chart Test performed, results not able to be interpreted |
| 998 | No histologic examination of primary site |
| 999 | Unknown or no information Not documented in patient record |