| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 441 | 1 | AJCC | 2010 | 12 |
| 1 | Recorded as Grade I or 1 |
| 2 | Recorded as Grade II or 2 |
| 3 | Recorded as Grade III or 3 |
| 4 | Recorded as Grade IV or 4 |
| Blank | No Two, Three or Four System Grade is available; unknown |