Site-Specific Factor 10
HER2: Fluorescence In Situ Hybridization (FISH) Lab Value
Notes
**Note 1:** Record the results of only the Fluorescence In Situ Hybridization (FISH) test for Human Epidermal Growth Factor Receptor 2 (HER2) in this field. The test determines if there are additional copies of the HER2/neu gene in the tumor cells compared to the normal number. The results are reported as a ratio between the number of copies of the HER2/neu gene and the number of copies of chromosome 17, on which the gene resides. **Note 2:** Record the actual ratio if given. Enter the stated ratio to two decimal places. Use a trailing zero if needed. **Note 3:** The same laboratory test should be used to record information in **Site-Specific Factor 10, HER2: Fluorescence In Situ Hybridization (FISH) Lab Value** and **Site-Specific Factor 11, HER2: Fluorescence In Situ Hybridization (FISH) Test Interpretation**. **Note 4:** If the test is done but the actual ratio is not stated, use code 997. **Note 5:** 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
988NAACCR Item
NAACCR #2864Metadata
None| Code | Description |
|---|---|
| 100-979 | Ratio of 1.00 - 9.79 (Enter exact ratio to two decimal places) Examples: 100 1.0 120 1.2 564 5.64 |
| 980 | Ratio of 9.80 or greater |
| 988 | Not applicable: Information not collected for this case |
| 991 | Ratio of less than 1.00 |
| 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 |