Grade Category Calculation Table
Notes
**Note:** The Grade Category is based on Site-Specific Factor 11, Histopathologic Grading. The Grade Category is not the same as histologic grade (G); it is an intermediate variable used to derive stage. Note that the category C2 includes high grade for mucinous tumors and G2 and G3 (moderately differentiated and poorly differentiated) for non-mucinous tumors.| SSF11 | Grade Category |
|---|---|
| 010, 011 | C1 |
| 020, 021 | C2 |
| 030 | C3 |
| 040 | C4 |
| 988, 998, 999 | CX |
| SSF11 | Grade Category |
|---|---|
| 010 | C1 |
| 011 | C1 |
| 020 | C2 |
| 021 | C2 |
| 030 | C3 |
| 040 | C4 |
| 988 | CX |
| 998 | CX |
| 999 | CX |