NAACCR Item #3853: HER2 ISH Single Probe Copy Number
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3853 | 4 | NAACCR | 2018 | 18 |
NAACCR XML:
Tumor.her2IshSingleProbeCopyNumber
Description
HER2 in situ hybridization (ISH) Single Probe Copy Number is the HER2 copy number based on a single probe test.
Rationale
HER2 ISH Single Probe Copy Number is a Registry Data Collection Variable in AJCC. It is a new data item for cases diagnosed 1/1/2018+.
Codes
| 0.0-99.9 | Reported HER2 copy number of 0.0-99.9 |
| XX.1 | Reported HER2 copy number of 100 or greater |
| XX.7 | Test ordered, results not in chart |
| XX.8 | Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code XX.8 will result in an edit error.) |
| XX.9 | Not documented in medical record Cannot be determined (indeterminate) Single probe test not done; only dual probe test performed HER2 ISH Single Probe Copy Number 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.