| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 1290 | 2 | SEER/CoC | 1997 | 5.1 |
Site-specific codes for the type of surgery to the primary site performed as part of the first course of treatment. This includes treatment given at all facilities as part of the first course of treatment.
| 00 | None |
| 10-19 | Site-specific code; tumor destruction |
| 20-80 | Site-specific codes; resection |
| 90 | Surgery, NOS |
| 98 | Site specific codes; special |
| 99 | Unknown |