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:** Code 1 for stated as “low grade” only. **Note 4:** Codes 1-3 take priority over H. **Note 5:** G3 includes undifferentiated and anaplastic. **Note 6:** 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 7:** If there is only one grade available and it cannot be determined if it is clinical, pathological, or after neo-adjuvant therapy, assign as a clinical grade and code unknown (9) for pathological grade, and blank for post-therapy grade. **Note 8:** If you are assigning an AJCC 8th edition stage group * Grade is required to assign stage group * Code H is treated as a G3 when assigning AJCC stage group * An unknown grade may result in an unknown stage group




NAACCR #3843


Code Description
1 G1: Well differentiated, low grade
2 G2: Moderately differentiated, high grade
3 G3: Poorly differentiated, high grade
H Stated as “high grade” only
9 Grade cannot be assessed (GX); Unknown