Version Selection: 1.7 (current) | 2.0 (upcoming)
Data Last Updated: Aug. 27, 2019

Grade Clinical


**Note 1:** Clinical grade must not be blank. **Note 2:** Assign the highest grade from the primary tumor assessed during the clinical time frame. **Note 3:** The grading system for this chapter is based on histology * Immature teratomas and serous carcinomas, codes L and H, otherwise code 9 * All other histologies: Code 1-3 if a nuclear grade is documented, otherwise code * If your registry collects ovarian borderline tumors (/1), code "B" for grade **Note 4:** G3 includes anaplastic. **Note 5:** Code 9 when * Grade from primary site is not documented * Clinical workup is not done (for example, cancer is an incidental finding during surgery for another condition) * Grade checked "not applicable" on CAP Protocol (if available) and no other grade information is available **Note 6:** If there is only one grade available and it cannot be determined if it is clinical or pathological, assume it is a clinical grade and code appropriately per clinical grade categories for that site, and then code unknown (9) for pathological grade, and blank for post therapy grade.
Code Description
1 G1: Well differentiated
2 G2: Moderately differentiated
3 G3: Poorly differentiated, undifferentiated
B GB: Borderline Tumor
L Low grade
H High grade
9 Grade cannot be assessed (GX); Unknown