FISH, X/Y Post Bone Marrow Transplant, TC

Test Code

12644

CPT Codes
88271 (x2), 88275<br>Restricted Client Code - Tech Only

Preferred Specimen

5 mL whole blood or 3 mL bone marrow collected in sodium heparin (green-top) tube

Minimum Volume

1 mL whole blood • 1 mL bone marrow

Other Acceptable Specimens

Whole blood or bone marrow collected in: sodium heparin (royal blue-top) tube, or sodium heparin lead-free (tan-top) tube

Instructions

Clinical history and reason for referral and prior transplant history are required with submitted specimen.

Bone marrow 1-3 mL, or whole blood 3-5 mL collected in a sodium heparin tube.

Specimen viability decreases during transit. Send specimen to testing laboratory for viability determination. Do not freeze. Do not reject.

Transport Temperature

Room temperature

Specimen Stability

See Instructions

Methodology
Fluorescence in situ Hybridization

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Set up: Daily; Report available: 5 days

Clinical Significance

Fluorescence in situ hybridization (FISH) test useful in determining the percentage of bone marrow or blood cells from donor and recipient in mismatched sex bone marrow transplant patients.

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.