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:** 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
Metadata
SSDI
| 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 |
