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Colorectal Cancer Mutation Panel (KRAS, PIK3CA, BRAF, NRAS)
81275, 81276, 81210, 81404, 81311
KRAS Mutation Analysis, PIK3CA Mutation Analysis, BRAF Mutation Analysis, NRAS Mutation Analysis
Polymerase Chain Reaction (PCR) • Sequencing
|KRAS Mutation Analysis||Not detected|
|PIK3CA Mutation Analysis||Not detected|
|BRAF Mutation Analysis||Not detected|
|NRAS Mutation Analysis||Not detected|
This panel detecting tumor-associated somatic mutations in 4 different oncogenes can predict response to EGFR-targeted immunotherapy in patients with metastatic colorectal cancer. Tumors with mutations in KRAS, NRAS, BRAF and PI3KCA (exons 9 and 20) are associated with inferior response to anti-EGFR immunotherapy, and variably associated with more aggressive clinical behavior compared to unmutated cases.
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Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.