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Pseudoachondroplasia/Multiple Epiphyseal Dysplasia (COMP)

New York




  • Multiple Epiphyseal Dysplasia (MED)
  • Pseudoachondroplasia (PSACH)

Clinical Utility

  • Confirmation of a clinical diagnosis
  • Identification of patients at risk for early onset arthritic changes
  • Prenatal diagnosis in families with known mutation

Lab Method

  • Capillary Sequencing
  • Deletion/Duplication Analysis

Test Code


CPT Codes*


ABN Required


Turnaround Time**

4 weeks

Preferred Specimen

2-5 mL Blood - Lavender Top Tube

Alternative Specimen

Dried Blood Spots | 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.