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This test uses RT-PCR and bi-directional sequencing of JAK2 Exons 12-13 to detect mutations in the pseudokinase domain.
Test Customization: Plasma testing available for increased sensitivity.
Test Recommendation: Add JAK2 V617F testing.
Bone Marrow Aspirate: 2 mL in EDTA tube.
Peripheral Blood: 5 mL in EDTA tube.
Note: Test is RNA-based. Please select Extract & Hold - RNA If specimen hold service is desired.
81279 (as of 01/01/2021); Prior to CPT Code was 81403
*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.
Last Updated: August 05, 2025