Prenatal Spinal Muscular Atrophy

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: TF33
CPT Codes*: 81329x1
ABN Required: No
Turnaround Time**: 2 weeks
Preferred Specimen: 30 mL Amniotic Fluid | 2 T25 flasks of cultured amniocytes | 2 T25 flasks of cultured chorionic villi | 30 mg CVS | 5 µg DNA Concentration | POC or other fetal tissue
Minimum Specimen:

20 mL Amniotic Fluid | 20 mg CVS  

Samples below the minimum amounts may be accepted, please contact [email protected] in advance to review.  

*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. Note that if the submitted specimen requires cell culturing, this will delay the start of testing.

Resources

Test Documents

Billing

Targeted Variant Testing

FAQs