Genetic Testing Company | The DNA Diagnostic Experts | GeneDx

In observance of the holidays, GeneDx will be closed for business on Thursday, December 25, 2014 and on Thursday, January 1, 2015. We will be unable to receive and process specimens. FedEx and UPS will also not be in operation. Except for the aforementioned dates, GeneDx will operate on our normal schedule (Monday-Saturday), including December 24th and December 31st.  If you have any questions or inquiries, please call us at 301-519-2100 or email us at

LRP5 Del/Dup



Clinical Utility:
  • Confirmation of a clinical diagnosis
  • Development of an appropriate management plan
  • Differentiation of FEVR from retinopathy of prematurity (ROP) and Coats disease
  • Prenatal diagnosis in families, in which the pathogenic mutation(s) have been identified
Lab Method:
Exon Array CGH


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


CPT Codes:
84311x1, 88271x10, 88291x1
New York Approved:
ABN Required:
Billing Information:
View Billing Policy
ICD Codes:
  • 756.52: Osteopetrosis
  • 362.16: Retinal neovascularization NOS, Neovascularization: choroidal subretinal
  • 733.02: Idiopathic osteoporosis
  • 362.12: Exudative retinopathy Coats' syndrome
  • 362.13: Changes in vascular appearance, Vascular sheathing of retina
* For price inquiries please email


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  4. Nallathambi J et al., (2006) Mol Vis 12:1086–92
  5. Qin M et al., (2005) Hum Mutat 26:104-12
  6. Ai M et al., (2005) Am J Hum Genet 77:741-753
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  8. Janssens K et al., (2002) Hum Mol Genet 11:2385-93
  9. Van Wesenbeek L et al., (2003) Am J Hum Genet 72:763-771
  10. Chung B et al., (2009) Hum Mutat 30:641-648
  11. Balemans W et al., (2007) Endocrinology 148:2622-2629
  12. Hartikka H et al., (2005) J Bone Miner Res 20:783–789
  13. Crabbe P et al., (2005) J Bone Miner Res 20:1951–1959

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