Site-Specific Factor 14

HER2: Result of Other or Unknown Test


**Note 1:** If another type of in situ hybridization test was performed for Human Epidermal Growth Factor Receptor 2 (HER2), other than fluorescent (FISH) or chromogenic (CISH), record the results here. **Note 2:** If it is unknown which type of HER2 test was performed, record the results here. **Note 3:** If no unnamed HER2 test is mentioned in the medical record, code to 999 unless there are circumstances under which the test isn't performed, for example, no histologic specimen.




NAACCR #2868


Code Description
010 Positive/elevated; amplified
020 Negative/normal; within normal limits; not amplified
030 Borderline; equivocal; indeterminate; undetermined whether positive or negative
988 Not applicable: Information not collected for this case
997 Test ordered, results not in chart
998 Test not done (test not ordered and not performed)
999 Unknown or no information
Not documented in patient record