California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures
Cell Indicator (Codes 5, 6, 7, 8, 9)
Cell Indicator (Codes 5, 6, 7, 8) describes the lineage or phenotype of the cell. Codes 5, 6, 7, and 8 are used only for hematopoietic and lymphoid neoplasms. Code 9 indicates cell type not determined, not stated, or not applicable.
Determine the histology based on the current Hematopoietic and Lymphoid Neoplasm Manual [http://seer.cancer.gov/tools/heme/Hematopoietic_Instructions_and_Rules/].
Determine the Cell Indicator by applying the “Grade of Tumor Rules” within the current Hematopoietic and Lymphoid Neoplasm Manual [http://seer.cancer.gov/tools/heme/Hematopoietic_Instructions_and_Rules/] to code the grade.
Terminology |
Grade Code |
T-cell; T-precursor |
5 |
| B-Cell; Pre-B; B-precursor | 6 |
| Null cell; Non T-non B | 7 |
| NK cell (natural killer cell) | 8 |
| Grade unknown, not stated, or not applicable | 9 |
Note: This grading system is coded in a site-specific factor for the applicable CS schema.