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Test ID JCV JC Virus Detection by In Situ Hybridization

Shipping Instructions

Attach the green pathology address label included in the kit to the outside of the transport container.

Necessary Information

A pathology/diagnostic report and a brief history are required.

Specimen Required

Specimen Type: Formalin-fixed, paraffin-embedded tissue block

Supplies: Pathology Packaging Kit (T554)

Specimen Volume: Entire block


Specimen Type: Slides

Slides: 4 Unstained glass, positively-charged slides with 5 (+ or - 1)-microns formalin-fixed, paraffin-embedded tissue

Useful For

Confirming a clinical and histopathologic diagnosis of progressive multifocal leukoencephalopathy

Method Name

In Situ Hybridization (ISH)

Reporting Name

JC Virus ISH

Specimen Type


Specimen Stability Information

Specimen Type Temperature Time Special Container
Special Ambient (preferred)

Day(s) Performed

Monday through Friday

Report Available

5 to 7 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information


88364-If additional ISH

LOINC Code Information

Test ID Test Order Name Order LOINC Value
JCV JC Virus ISH In Process


Result ID Test Result Name Result LOINC Value
71214 Interpretation 50595-8
71215 Participated in the Interpretation No LOINC Needed
71216 Report electronically signed by 19139-5
71218 Material Received 81178-6
71596 Disclaimer 62364-5
72115 Case Number 80398-1


If not ordering electronically, complete, print, and send an Immunohistochemical (IHC)/In Situ Hybridization (ISH) Stains Request (T763) with the specimen.