Dosage Analysis of SMN1 & SMN2

NY Approved

Test Overview

Clinical Utility

  • ​Molecular confirmation of a clinical diagnosis
  • Identification of at-risk family members
  • Assist with treatment/ management decisions
  • Recurrence risk assessment

Test Details

Genes

SMN1, SMN2

Conditions

  • Spinal Muscular Atrophy

Lab Method

  • MLPA

Ordering Information

Test Code: T789
CPT Codes*: 81329x1
ABN Required: No
Turnaround Time**: 3 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

Billing

Targeted Variant Testing

FAQs