Site-Specific Factor 2
Retinoblastoma (RB) Gene Mutation
Notes
**Note:** Information is collected on the germline mutation of the retinoblastoma (RB) gene. Typically tumor tissue is tested to identify the presence of the mutation. Peripheral blood lymphocytes are tested to determine if the RB gene is a germline mutation (inherited). * Code the results of testing as reported in the medical recordDefault
988NAACCR Item
NAACCR #2890| Code | Description |
|---|---|
| 000 | Germline retinoblastoma (RB) gene mutation not present |
| 010 | Germline RB gene mutation present |
| 988 | Not applicable: Information not collected for this case |
| 997 | Test ordered, results not in chart |
| 998 | Test not done (test not ordered and not performed) |
| 999 | Unknown or no information Not documented in patient record |