Grade Post Therapy Clin (yc)
Notes
**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:** Grade is applicable for the follicular lymphomas only (9690/3, 9691/3, 9695/3, 9698/3). For all other lymphoma histologies, code 9.
**Note 3:** Assign the highest grade from the microscopically sampled specimen of the primary site following neoadjuvant therapy or primary systemic/radiation therapy.
**Note 4:** If there are multiple tumors with different grades abstracted as one primary, code the highest grade.
**Note 5:** Follicular lymphoma grade is based on the absolute number of centroblasts per high-power (40 x objective, 0.159 square mm) microscopic field (HPF).
**Note 6:** 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
Metadata
SSDI
| Code |
Description |
| 1 |
G1: 0-5 centroblasts per 10 HPF |
| 2 |
G2: 6-15 centroblasts per 10 HPF |
| 3 |
G3: More than 15 centroblasts per 10 HPF but with admixed centrocytes |
| 4 |
G4: More than 15 centroblasts per 10 HPF but without centrocytes |
| 9 |
Grade cannot be assessed (GX); Unknown
Not a follicular histology (9690/3, 9691/3, 9695/3, 9698/3) |
| <BLANK> |
See Note 1 |
