Grade Post Therapy Clin (yc)

This input is used for staging


**Note 1:** Leave Grade Post Therapy Clin (yc) blank when * No neoadjuvant therapy * Clinical or pathological case only * Neoadjuvant therapy completed, no microscopic exam is done prior to surgery/resection of primary tumor * There is only one grade available and it cannot be determined if it is clinical, pathological, post therapy clinical or post therapy pathological **Note 2:** Assign the highest grade from the microscopically sampled specimen of the primary site following neoadjuvant therapy or primary systemic/radiation therapy. **Note 3:** If there are multiple tumors with different grades abstracted as one primary, code the highest grade. **Note 4:** Code 1 for stated as “low grade” only. **Note 5:** Codes 1-3 take priority over H. * If “high grade” is documented and G2 (Moderately differentiated, high grade) or G3 (Poorly differentiated, high grade) are not documented, code H (high grade, NOS) **Note 6:** G3 includes undifferentiated and anaplastic. **Note 7:** Code 9 (unknown) when * Microscopic exam is done after neoadjuvant therapy and grade from the primary site is not documented * Microscopic exam is done after neoadjuvant therapy and there is no residual cancer * Grade checked “not applicable” on CAP Protocol (if available) and no other grade information is available **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 #1068


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
<BLANK> See Note 1