| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 449 | 1 | AJCC | 2010 | 12 |
Indicates whether a two, three or four grade system is used.
This item is used to show whether a two, three or four grade system is used. This is the grade system stated in the path report; it is not converted. This item is used in conjunction with Grade Path Value [441] and is abstracted in addition to Grade Differentiation [440].
Codes (Refer to the most recent version of STORE for additional instructions.)
| 2 | Two-Grade System |
| 3 | Three-Grade System |
| 4 | Four-Grade System |
| Blank | Not a two, three or four grade system; unknown |