Test Overview

Clinical Utility

To evaluate for deletions in genes associated with disorders for which haploinsufficiency is a known mechanism of disease.
To evaluate for deletions or duplications when a single sequence variant has been identified in a gene associated with an autosomal recessive disorder.
Deletion/duplication analysis by ExonArrayDx may be requested for a single gene (test code 906) or for a custom panel of up to 20 genes (test code 703).

Ordering Information

Test Code: 906

CPT Codes*: Varies by Gene

ABN Required: No

Turnaround Time**: 3-4 weeks

Preferred Specimen: 2-5 mL Blood - Lavender Top Tube

Alternative Specimen: Buccal Swabs

*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.

**Turnaround times are estimates and begin once the sample(s) begin processing at the GeneDx lab and could be extended in situations outside GeneDx’s control.

Resources

Test Documents

Rare disorders test requisition Test information sheet

Billing

General Billing Information

Targeted Variant Testing

Learn more about our variant testing program (VTP)

FAQs

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