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:** Codes 1-3 take priority over A-D. **Note 4:** 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 5:** 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: includes adenoid cystic carcinoma without basaloid (solid) pattern
3 G3: Poorly differentiated: includes adenoid cystic carcinoma with basaloid (solid) pattern
A Well differentiated
B Moderately differentiated
C Poorly differentiated
D Undifferentiated, anaplastic
9 Grade cannot be assessed (GX); Unknown