NAACCR Item #440: Grade
|Item #||Length||Source of Standard||Year Implemented||Version Implemented||Year Retired||Version Retired|
NAACCR XML: Tumor.grade
Grade, Differentiation, or Cell Lineage Indicator (SEER/CCCR)
Code for the grade or degree of differentiation of the reportable tumor. For lymphomas and leukemias, field also is used to indicate T-, B-, Null-, or NK-cell origin.
Note: Code 8 was adopted for use with lymphoma cases diagnosed in 1995 and later.
|8||NK (natural killer) cell|
|9||Grade/differentiation unknown, not stated, or not applicable|
Comment: Use the most recent Hematopoietic and Lymphoid rules for assigning grades 5-8.