Derived Grade
NAACCR Item
NAACCR #1975| Code | Description |
|---|---|
| 1 | Grade Group 1: Gleason score less than or equal to 6 |
| 2 | Grade Group 2: Gleason score 7 Gleason pattern 3+4 |
| 3 | Grade Group 3: Gleason score 7 Gleason pattern 4+3 |
| 4 | Grade Group 4: Gleason score 8 |
| 5 | Grade Group 5: Gleason score 9 or 10 |
| A | Well differentiated |
| B | Moderately differentiated |
| C | Poorly differentiated |
| D | Undifferentiated, anaplastic |
| E | Stated as "Gleason score 7" with no patterns documented or Any Gleason patterns combination equal to 7 not specified in 2 or 3 |
| 9 | Grade cannot be assessed; Unknown |