Table 1.
Coding Definitions for the Brain Molecular Markers (BMM) Data Items
| Code | Description |
|---|---|
| 01 | Diffuse astrocytoma, IDH-mutant (9400/3) |
| 02 | Diffuse astrocytoma, IDH-wildtype (9400/3) |
| 03 | Anaplastic astrocytoma, IDH-mutant (9401/3) |
| 04 | Anaplastic astrocytoma, IDH-wildtype (9401/3) |
| 05 | Glioblastoma, IDH-wildtype (9440/3) |
| 06 | Oligodendroglioma, IDH-mutant and 1p/19q codeleted (9450/3) |
| 07 | Anaplastic oligodendroglioma, IDH-mutant and 1p/19q codeleted (9451/3) |
| 08 | Medulloblastoma, SHH-activated, and TP53-wildtype (9471/3) |
| 09 | Embryonal tumor with multilayered rosettes, C19MC-altered (9478/3) |
| 85 | Not applicable: Histology not 9400/3, 9401/3, 9440/3, 9450/3, 9451/3, 9471/3, 9478/3 |
| 86 | Benign or borderline tumor |
| 87 | Test ordered, results not in chart |
| 88 | Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 88 will result in an edit error.) |
| 99 | Not documented in patient record; No microscopic confirmation; Brain molecular markers not assessed or unknown if assessed |
NAACCR Data Item #3816. This data item applies only to ICD-O-3 histology codes: 9400/3, 9401/3, 9440/3, 9450/3, 9451/3, 9471/3, and 9478/3. If a histology is not included in this list, code 85 was assigned. Only one code is applicable for each tumor.