Grade Post Therapy


**Note 1:** Leave post-therapy grade blank when * No neoadjuvant therapy * Clinical or pathological case only * There is only one grade available and it cannot be determined if it is clinical, pathological or post-therapy **Note 2:** Assign the highest grade from the resected primary tumor assessed after the completion of neoadjuvant therapy. **Note 3:** Codes 1-4 take priority over L and H. **Note 4:** G4 includes anaplastic. **Note 5:** Code 9 when * Surgical resection is done after neoadjuvant therapy and grade from primary site is not documented * Grade checked “not applicable” on CAP Protocol (if available) and no other grade information is available


NAACCR #3845


Code Description
1 G1: Well differentiated (low grade)
2 G2: Moderately differentiated (low grade)
3 G3: Poorly differentiated (high grade)
4 G4: Undifferentiated (high grade)
L Stated as “low grade” NOS
H Stated as “high grade” NOS
9 Grade cannot be assessed (GX); Unknown
<BLANK> See Note 1