LOINC Code 41642-0: West Nile virus IgM IF Ql (Specimen)

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component West Nile virus Ab.IgM. It is commonly used with the system or sample type XXX.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Both
• Method: IF

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• West Nile virus IgM Ab [Presence] in Specimen by Immunofluorescence
• West Nile virus Ab.IgM
• ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immune globulin M; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; Time Resolved Fluorescence; To be specified in another part of the message; TRF; Unspecified; WNV

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions