In order to ensure 2023 billing, testing must be activated before the end of the year, or within 30 days of proband sample collection (if sample was collected in 2023). For Exome, Genome, or Xpanded testing, if you do not expect parental samples to be received in time for testing to be activated with 2023 billing, please contact us at [email protected] to determine how to proceed.

L1CAM Gene Sequencing & Del/Dup

New York
Approved

Genes

L1CAM

Conditions

  • CRASH Syndrome
  • MASA Syndrome

Clinical Utility

  • Patients with hydrocephalus and at least one L1CAM–associated finding
  • Carrier testing in female relatives
  • Risk assessment

Lab Method

  • Next-Gen Sequencing
  • Deletion/Duplication Analysis

Test Code

552

CPT Codes*

81407x1

ABN Required

No

Turnaround Time**

3 weeks

Preferred Specimen

2-5 mL Blood - Lavender Top Tube

Alternative Specimen

Buccal Swabs | Extracted DNA

*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.

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