Grade Post Therapy
Notes
**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:** Code the appropriate grade from a resection done after neoadjuvant therapy.
**Note 4:** Codes 1-3 take priority over H.
**Note 5:** Code 1 for stated as “low grade” only.
**Note 6:** G3 includes undifferentiated and anaplastic.
**Note 7:** Code 9 when
* Surgical resection is done after neoadjuvant therapy and grade from the primary site is not documented
* 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
Metadata
SSDI
| 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 |
