Prenatal Whole Genome Chromosomal Microarray

NY Approved

Test Overview

Clinical Utility

  • Abnormal fetal ultrasound findings
  • Ambiguous karyotype results
  • Suspected deletion/duplication syndrome
  • Family history of known or suspected chromosome imbalances
  • Abnormal maternal serum screening
  • Advanced maternal age

Test Details

Conditions

  • Chromosomal Abnormalities
  • Uniparental Disomy

Lab Method

  • Whole Genome Chromosomal Microarray

Ordering Information

Test Code: 460
CPT Codes*: 81229x1
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