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Chromosomal Microarray (GenomeDx®)

New York


  • Developmental Delay
  • Epilepsy
  • Congenital Anomalies
  • Intellectual disability
  • Autism spectrum disorders

Clinical Utility

  • Confirmation of a clinical diagnosis
  • Differentiation between de novo and familial cases
  • Improved recurrence risk and prognosis

Lab Method

  • Whole Genome Chromosomal Microarray

Test Code


CPT Codes*


ABN Required


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.

**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.