Test Name: c-KIT (KIT) Mutation Analysis


Methodology: Molecular Genetics


Test Description

Bi-directional sequencing of KIT exons 8, 9, 11, and 17 for detection of activating mutations including the common mutation D816V. For solid tumors, tumor enrichment is performed before extraction. In hematological disease, testing may be performed on plasma to increase sensitivity.  


Specimen Requirements

•Peripheral blood: 4 mL in EDTA tube.
•Bone marrow: 2 mL in EDTA tube.
•FFPE tissue: Paraffin block is preferred. Alternatively, send 1 H&E slide plus 5-10 unstained slides cut at 5 or more microns. Please use positively-charged slides and 10% NBF fixative. Do not use zinc fixatives.
•Fixed cytogenetic cell pellet: Send all available cells suspended in fixative.


Storage and Transport

Use cold pack for transport, making sure cold pack is not in direct contact with specimen. Slides can be packed at room temperature.  


Specimen Rejection Criteria

Click here to reference the specimen rejection criteria.


Turn Around Time (TAT): 7 Days


CPT Codes*: 81404


*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.