Grade Clinical
Notes
**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:** Codes L, H and M take priority over A-D.
**Note 4:** 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 5:** If there is only one grade available and it cannot be determined if it is clinical or pathological, assume it is a clinical grade and code appropriately per clinical grade categories for that site, and then code unknown (9) for pathological grade, and blank for post therapy grade.
Default
9
Metadata
SSDI
| Code |
Description |
| L |
LG: Low grade (≤20 mitoses per 50 HPF) |
| H |
HG: High grade (>20 mitosis per 50 HPF) |
| M |
TP53 or CTNNB Mutation |
| A |
Well differentiated |
| B |
Moderately differentiated |
| C |
Poorly differentiated |
| D |
Undifferentiated, anaplastic |
| 9 |
Grade cannot be assessed (GX); Unknown |
