XomeDxXpress® - WES with a Verbal Result in 7 Days

New York

Clinical Utility

  • Determination of a clinical diagnosis
  • Identification of gene implicated in genetic disease
  • Recurrence risk assessment

Lab Method

  • Next-Gen Sequencing

Based on current published guidelines, exome or genome sequencing can now be considered as first-tier tests for patients with unexplained epilepsy, developmental delay, intellectual disabilities and/or congenital anomalies.


  1. Genetics in Medicine (2021) 23:2029–2037; https://doi.org/10.1038/s41436-021-01242-6
  2. Smith, L., Malinowski, J., Ceulemans, S., Peck, K., Walton, N., Sheidley, B. R., & Lippa, N. (2023). Genetic testing and counseling for the unexplained epilepsies: An evidence-based practice guideline of the National Society of Genetic Counselors. Journal of Genetic Counseling, 32, 266– 280. https://doi.org/10.1002/jgc4.1646

Important Information

The XomeDxXpress® test is whole exome sequencing with an expedited turnaround time (TAT) of approximately 2 weeks. A verbal result is given within 7 calendar days after the start of testing and will include pathogenic and/or expected pathogenic variants in known disease-causing genes (Human Genome Mutation Database genes). A written report including all clinically relevant, confirmed variants will be reported within approximately 2 weeks after the start of testing. Because of the rapid TAT, samples on the proband and both biological parents, when included, must be submitted at the same time, along with clinical information, in order to begin testing. Please email [email protected] to discuss prior to sending in samples.

Insurance billing not accepted

Test Code


CPT Codes*

81415x1 ,81416x2

ABN Required


Turnaround Time**

Verbal result in 7 days, final report ~2 weeks

Preferred Specimen

3-6 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.

**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.