| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired | Column # |
|---|---|---|---|---|---|---|---|
| 764 | 1 | SEER | 2018 | 16 | 987 - 987 |
| 0 | In situ |
| 1 | Localized |
| 2 | Regional, direct extension only |
| 3 | Regional, regional lymph nodes only |
| 4 | Regional, direct extension and regional lymph nodes |
| 7 | Distant |
| 8 | Benign, borderline |
| 9 | Unknown if extension or metastasis (unstaged, unknown, or unspecified) Death certificate only case |