JC Polyoma Virus DNA, Qualitative Real-Time PCR, CSF

Test Code

CPT Codes

Preferred Specimen
0.7 mL CSF collected in a sterile, leak-proof container

Minimum Volume
0.3 mL


Transport Temperature

Specimen Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 30 days

Real-Time Polymerase Chain Reaction

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Daily a.m.; Report available: 1 day

Reference Range
Not detected

Clinical Significance
JC Polyoma Virus (JCV) is the cause of progressive multi- focal leukoencephalopathy (PML), a demyelinating neurologic disease of immunosuppressed patients. This test detects JC polyoma virus DNA in CSF. Detection of the virus in specimens from AIDS and other severely immune compromised patients may indicate disease. Serum antibodies are not helpful in diagnosing PML as antibodies are common in the general population. JCV can also be detected in the urine of 3% of pregnant women, but is not associated with proven disease.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Dr
Chantilly, VA 20153

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.