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Bone Marrow Aspirate: 2 mL in EDTA tube.
Peripheral Blood: 5 mL in EDTA tube.
H&E slide (required) plus paraffin block.
Cut Slides: H&E slide (required) plus 4-5 unstained slides cut at 5+ microns.
Fresh, Unfixed Tissue: Two pieces minimum, 0.2 cm3 in RPMI.
Note on FFPE: Paraffin block is preferred. Do not use zinc fixatives. If submitting slides, please use positively-charged slides and 10% NBF fixative. Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Note: Test is DNA-based. Please select Extract & Hold - DNA If specimen hold service is desired.
Note on Fresh Tissue: Not suitable for freeze & hold option.
81261, 81264
*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: July 28, 2025