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

COL4A5 Gene Sequencing



Clinical Utility:
  • Confirmation of a clinical diagnosis
  • Differentiation between X-linked and autosomal recessive or dominant forms of the disease
  • Carrier detection in female relatives of an affected male
  • Prenatal diagnosis in at-risk pregnancies
Lab Method:
Capillary Sequencing


Test Code:
Turnaround Time:
7-8 weeks
Preferred Specimen:
2-5 mL Blood - Lavender Top Tube


CPT Codes:
New York Approved:
ABN Required:
Billing Information:
View Billing Policy
ICD Codes:
  • 389.1: Sensorineural hearing loss, Perceptive hearing loss or deafness
  • 583.9: With unspecified pathological lesion in kidney Glomerulitis NOS, Glomerulonephritis NOS, Nephritis NOS, Nephropathy NOS
  • 743.8: Other specified anomalies of eye
  • 585.9: Chronic kidney disease, unspecified Chronic renal disease Chronic renal failure NOS, Chronic renal insufficiency
* For price inquiries please email


  1. Arrondel C et al (2004) Kidney Int 65:2030-2040
  2. Gross O et al (2002). Nephrol Dial Transplant 17:1218-1227
  3. Hertz JM et al (2001). Human Mutation 18:141-148
  4. Kashtan C (1999). Medicine (Baltimore) 78:338-360
  5. Kashtan C (Updated 01-08-2007) Collagen IV-Related Nephropathies (Alport Syndrome and Thin Basement Membrane Nephropathy)
  6. Martin, P et al (1998). J Am Soc Nephrol 9:2291-2301
  7. Plant K et al (1999). Human Mutation 13:124-132
  8. Vetrie et al (1992) Genomics 14(3):624-633

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