NAACCR Item #3865: KIT Gene Immunohistochemistry

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Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired Column #
3865 1 NAACCR 2018 18 1815 - 1815

NAACCR XML: Tumor.kitGeneImmunohistochemistry

KIT Gene Immunohistochemistry (IHC) is the expression of the KIT gene in tumor tissue specimens based on immunohistochemical (IHC) stains. A positive test is a diagnostic and predictive marker for GIST tumors.
KIT Gene Immunohistochemistry (IHC) is a Registry Data Collection Variable in AJCC. This data item was previously collected for GIST schemas in CS (different SSF’s).
0 KIT negative/normal; within normal limits
1 KIT positive
7 Test ordered, results not in chart
8 Not applicable: Information not collected for this case
(If this information is required by your standard setter, use of code 8 may result in an edit error.)
9 Not documented in medical record
Cannot be determined by pathologist
KIT not assessed or unknown if assessed
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.