JCV Antibody Index with Reflex to Inhibition Assay
Label Mnemonic: JCVINDEX
Epic code: LAB8390
Downtime form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Commercial Mail-out Laboratory
5231 RCP
Collection Medium:
Red top tube 5 mL (Clot Activator)
Preferred Minimum: 0.5 mL serum
Absolute Minimum: 0.25 mL serum
Turn Around Time:
2-14 days upon receipt at reference laboratory
Reference Range:
Interpretive Data:
<0.20        Negative
0.20-0.40    Indeterminate
>0.40        Positive
Please print, complete and submit the Quest Diagnostics Test Order Form with the specimen.

The JC Virus (JCV) is associated with progressive multifocal leukoencephalopathy (PML). Detection of antibodies to JCV in serum is a reliable indicator of exposure to JCV. The analytical performance characteristics were determined for multiple sclerosis patients.
Immunoassay (IA)
CPT Code:
86711 - If Index Value is between 0.20 and 0.40 (indeterminate), JC Virus Antibody Inhibition Assay will be performed at an additional charge.