NAACCR Item #3850: HER2 IHC Summary
| Item # | Length | Source of Standard | Section Name | Year Implemented | Version Implemented | XML NAACCR ID | Parent XML Element |
|---|---|---|---|---|---|---|---|
| 3850 | 1 | NAACCR | Stage/Prognostic Factors | 2018 | 18 | her2IhcSummary | Tumor |
Required Status:
NPCR Collect: No recommendation
CoC Collect: No recommendation
SEER Collect: No recommendation
CCCR Collect: Historically collected and currently transmitted when available
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+.
Allowable Values
0-4, 7-9
Codes
| Code | Description |
|---|---|
| 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.