Site-Specific Factor 9
HER2: Immunohistochemistry (IHC) Test Interpretation
Notes
**Note 1:** Record the results of only the immunohistochemical (IHC) test for Human Epidermal Growth Factor Receptor 2 (HER2) in this field. **Note 2:** The same laboratory test should be used to record information in **Site-Specific Factor 8, HER2: Immunohistochemistry (IHC) Lab Value** and **Site-Specific Factor 9, Immunohistochemistry (IHC) Test Interpretation**. **Note 3:** If the test is not mentioned in the medical record, code to 999 unless there are circumstances under which the test isn't performed, for example, no histologic specimen.Default
999NAACCR Item
NAACCR #2863Metadata
None| Code | Description |
|---|---|
| 010 | Positive/elevated |
| 020 | Negative/normal; within normal limits |
| 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 |