NEW: Track test progress in real time with our test tracker—now live in your provider portal.

Prenatal Fragile X Syndrome

New York
Approved


Genes

FMR1

Conditions

  • Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS)
  • Fragile X Syndrome
  • Premature Ovarian Failure (FMR1-Associated)

Clinical Utility

  • Testing for fetuses at increased risk for Fragile X syndrome based on family history

Lab Method

  • PCR Fragment Analysis

Test Code

TF32

CPT Codes*

81243x1; +81244x1 if more than 150 repeats

ABN Required

No

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.

**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.