| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 1,360 | 1 | SEER |
Codes for the type of radiation therapy performed as part of the first course of treatment.
Note: Radiation to brain and central nervous system for leukemia and lung cases is coded as radiation in this field.
Codes
| 0 | None |
| 1 | Beam radiation |
| 2 | Radioactive implants |
| 3 | Radioisotopes |
| 4 | Combination of 1 with 2 or 3 |
| 5 | Radiation, NOS-method or source not specified |
| 6 | Currently allowable for historic cases only; see note below |
| 7 | Patient or patient's guardian refused\* |
| 8 | Radiation recommended, unknown if administered\* |
| 9 | Unknown if radiation administered |
Note: CoC discontinued collection of this item in 2003 when FORDS was implemented. For CoC, codes 7 and 8 were used for tumors diagnosed before 1996, but should have been converted to 0 in this field and to the appropriate code in the new field Reason for No Radiation [1430]. SEER continues to use codes 7 and 8 for all years. See Chapter V, Unresolved Issues, for further discussion.
In the SEER program, a code 2 for other radiation was used between 1973 and 1987. When the radiation codes were expanded to add codes ‘2’ radioactive implants and ‘3’ radioisotopes, all cases with a code ‘2’ and diagnosed in 1973-1987 were converted to a code ‘6’ radiation other than beam radiation.