Collaborative Stage for TNM 7 - Revised 12/31/2009 [ Schema ]
| Code | Description |
| 000 | No family history of retinoblastoma |
| 010 | Positive family history of retinoblastoma |
| 888 | OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable |
| 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.) |
| 999 | Unknown Information not assessed Not documented in patient record |