Genetic Testing Company | The DNA Diagnostic Experts | GeneDx

In observance of Independence Day, GeneDx will be closed on Friday, July 3rd, and Saturday, July 4th. Nevertheless, all specimens arriving on Friday, July 3rd will be accepted, accessioned and processed. We will not accept specimens on Saturday, July 4th. We will resume our normal Monday through Saturday schedule on Monday, July 6, 2015. Please also note that FedEx works on a modified schedule on Friday, July 3rd and FedEx and UPS are closed on Saturday, July 4th. If you have any questions or inquiries, please call us at 301-519-2100 or email us at

TBX5 Del/Dup



Clinical Utility:
  • Confirmation of a clinical diagnosis
  • Identification of the genetic basis of observed cardiac/limb defects in affected individuals
  • Prenatal diagnosis - in families with an affected child and known mutation, or based on fetal ultrasound abnormalities
Lab Method:
Exon Array CGH


Test Code:
Turnaround Time:
3-4 weeks
Preferred Specimen:
2-5 mL Blood - Lavender Top Tube


CPT Codes:
New York Approved:
ABN Required:
Billing Information:
View Billing Policy
ICD Codes:
  • 746: Anomalies of pulmonary valve
  • 755.2: Reduction deformities of upper limb
  • 745.4: Ventricular septal defect, Eisenmenger's defect or complex, Gerbode defect, Interventricular septal defect, Left ventricular-right atrial communication, Roger's disease
  • 746.9: Unspecified anomaly of heart, Congenital: anomaly of heart NOS, heart disease NOS
  • 745.5: Ostium secundum type, atrial septal defect, Defect: atrium secundum fossa ovalis, Lutembacher's syndrome, Patent or persistent: foramen ovale ostium secundum
* For price inquiries please email


  1. McDermott, D. et al., Pediatr Res. 58: 981-86, 2005
  2. Heinritz, W. et al., Heart 91: 383-384, 2005
  3. Brassington, A. et al., Am J Hum Genet. 73: 74-85, 2003
  4. Akrami, SM. et al. J Med Genet. 38:E44, 2001
  5. Fan, C. et al. J Med Genet. 40:e29, 2003
  6. Borozdin, W. et al. Hum Mutat. 27:975-976, 2006

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