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Test Code WNC West Nile Virus Antibody, IgG and IgM, Spinal Fluid

Additional Codes

Epic Ordering Code LAB3041974
NBS code LBC11935
Service code 37166

Reporting Name

West Nile Virus Ab, IgG and IgM,CSF

Specimen Type

CSF


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Sterile vial

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Submit specimen from collection vial 2, 3, or 4


National University Hospital-Singapore Note:

NUH Outreach Laboratories:
Specimen Requirements
Submit the following:
Container: Plain Sterile Container
Processing Requirements
Aliquot CSF into Mayo plastic tube
Specimen type: CSF
Volume: 1 mL
Storage/transport requirements: Frozen

Forms

If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.

Specimen Minimum Volume

0.8 mL

Specimen Stability Information

Specimen Type Temperature Time
CSF Refrigerated (preferred) 7 days
  Frozen  30 days

Reject Due To

Gross hemolysis Reject

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Profile Information

Test ID Reporting Name Available Separately Always Performed
WNGC West Nile Virus Ab, IgG, CSF No Yes
WNMC West Nile Virus Ab, IgM, CSF No Yes
WNVCI West Nile CSF Interpretation No Yes

Day(s) Performed

Monday, Wednesday, Friday

Report Available

Same day/1 to 4 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

IgG: Negative

IgM: Negative

 

Reference values apply to all ages.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Aiding in diagnosis of central nervous system infection with West Nile virus

CPT Code Information

86789

86788

LOINC Code Information

Test ID Test Order Name Order LOINC Value
WNC West Nile Virus Ab, IgG and IgM,CSF 94853-9

 

Result ID Test Result Name Result LOINC Value
WNGC West Nile Virus Ab, IgG, CSF 77953-8
WNMC West Nile Virus Ab, IgM, CSF 29569-1
WNVCI West Nile CSF Interpretation 69048-7

Secondary ID

36772

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were 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.
National University Hospital-Singapore Additional Information:

Last updated 18/08/2026