NAACCR Item #3850: HER2 IHC Summary
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3850 | 1 | NAACCR | 2018 | 18 |
NAACCR XML:
Tumor.her2IhcSummary
Description
HER2 IHC Summary is the summary score for HER2 testing by IHC.
Rationale
HER2 IHC Summary is a Registry Data Collection Variable in AJCC. It is a new data item for cases diagnosed 1/1/2018+.
Codes
| 0 | Negative (Score 0) |
| 1 | Negative (Score 1+) |
| 2 | Equivocal (Score 2+) Stated as equivocal |
| 3 | Positive (Score 3+) Stated as positive |
| 4 | Stated as negative, but score not stated |
| 7 | Test ordered, results not in chart |
| 8 | Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 8 will result in an edit error.) |
| 9 | Not documented in medical record Cannot be determined (indeterminate) HER2 IHC Summary not assessed or unknown if assessed |
Code Notes
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.