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Prenatal Spinal & Bulbar Muscular Atrophy

New York




  • Kennedy Disease
  • Spinal and Bulbar Muscular Atrophy (SBMA)

Clinical Utility

  • Testing for fetuses at increased risk for spinal and bulbar muscular atrophy based on family history

Lab Method

  • PCR Fragment Analysis

Test Code


CPT Codes*

81174x1; 81265x1

ABN Required


Turnaround Time**

2 weeks

Preferred Specimen

20 mL Amniotic Fluid | 2 T25 flasks of cultured amniocytes | 20 mg CVS | 2 T25 flasks of cultured chorionic villi | Direct or Cultured POC

Alternative Specimen

3 ug 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.

**Reporting times are typical and begin once the sample(s) are received at the GeneDx laboratory, but could be extended in situations outside GeneDx’s reasonable control.