Site/Lat/Morph Override (IF42)

Edits of the type, Laterality, Primary Site, Morph, differ in whether they produce a warning or an error message and in use of ICD-O-2 or ICD-O-3 morphology. This edit checks the following:

• If the Primary Site is a paired organ and Behavior Code is in situ (2), then Laterality must be 1, 2, or 3.

• If diagnosis year is less than 1988 and Histology is greater than or equal to 9590, then no further editing is performed. If diagnosis year is greater than 1987 and Histology equals 9140, 9700, 9701, 9590-9980, then no further editing is performed.

The intent of this edit is to force a review of in situ cases for which Laterality is coded 4 (bilateral) or 9 (unknown laterality) as to origin.

• In rare instances when the tumor is truly midline (9) or the rare combination is otherwise confirmed correct, enter code 1 for Override Site/Lat/Morph.

Instructions for Coding

• Leave blank if the EDITS program does not generate an error message for the edit Laterality, Primary Site, Morphology (SEER IF42) and/or the edit Laterality, Primary Site, Morph

          ICD-O-3 (SEER IF42).

• Leave blank and correct any errors for the case if an item is discovered to be incorrect.

• Code 1 if a review of all items in the error or warning message confirms that all are correct.