This data item records the grade of a solid primary tumor before any treatment, including surgical resection or neoadjuvant.
For cases diagnosed on January 1, 2018, or later, this data item, along with Grade Pathological, replaces the data item Grade as well as site-specific factors for cancer sites with alternative grading systems such as breast (Bloom-Richardson) and prostate (Gleason).
Considerations for Use
- Data are available for cases diagnosed in 2018. This data item was not collected for cases diagnosed in 2001 to 2017.
- For cases that are eligible for American Joint Committee on Cancer (AJCC) staging, the recommended grading system is specified in the AJCC Cancer Staging Manual chapter.external icon The AJCC chapter-specific grading systems (codes 1–5) take priority over the generic grade definitions (codes A–E, L, H, and 9). For cases that are not eligible for AJCC staging, if the recommended grading system is not documented, the generic grade definitions apply.
- Refer to the Site-Specific Data Item (SSDI) Manual and Grade Manualexternal icon that corresponds with the year when the cases were diagnosed for additional site-specific instructions.
Note: This frequency table is restricted to cancers diagnosed in 2018.
1Values are not reported due to the need for complementary cell suppression.
2Counts of fewer than 16 cases and the corresponding percentages are suppressed.