MISMATCH REPAIR (MMR) PROTEIN IMMUNOHISTOCHEMISTRY (IHC)

Message

Note: This test is ordered by pathology in the CoPath laboratory information system
Evaluating tumor tissue to identify patients at risk for having hereditary nonpolyposis colon cancer/Lynch syndrome. When this test is ordered,
MLH1, MSH2, MSH6, and PMS2 stains will be performed.

Test Code

1230300890

CPT Codes
88342-TC (primary), 88341-TC (if additional IHC)

Preferred Specimen

Tissue

Methodology
Immunohistochemistry (IHC)

FDA Status
This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by WVUH in a manner consistent with CLIA requirements.

Clinical Significance

Evaluating tumor tissue to identify patients at risk for having hereditary nonpolyposis colon cancer/Lynch syndrome. When this test is ordered, MLH1, MSH2, MSH6, and PMS2 stains will be performed.

Performing Laboratory
West Virginia University Hospital, Inc.

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.