Prenatal L1CAM Sequencing & Del/Dup


Genes

L1CAM

Conditions

  • CRASH Syndrome
  • MASA Syndrome

Clinical Utility

  • Full sequencing and deletion/duplication analysis for fetuses with prenatal ultrasound findings suggestive of X-linked hydrocephalus/L1CAM-related disorder

Lab Method

  • Next-Gen Sequencing
  • Deletion/Duplication Analysis

Test Code

TL54

CPT Codes*

81407x1

ABN Required

No

Turnaround Time**

2 weeks

Preferred Specimen

20 mL Amniotic Fluid

Alternative Specimen

20 mg CVS | 2 T25 flasks of cultured amniocytes | 2 T25 flasks of cultured chorionic villi | 6 Ug DNA Concentration

*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.