LOINC Code 31451-8: La Crosse virus IgM Qn (CSF)

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 La Crosse virus Ab.IgM. It is commonly used with the system or sample type CSF.

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

What it does not mean

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

Key facts

• La Crosse virus IgM Ab [Units/volume] in Cerebral spinal fluid
• La Crosse virus Ab.IgM
• California encephalitis virus has more than 20 strains, most of which include "strain" in the name. In some cases such as La Crosse virus, however, the name does not signal that it is a strain of California encephalitis.
• ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; California Encephalitis Virus; Cerebral spinal fluid; Cerebrospinal Fl; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Lacrosse virus; LACV; Microbiology; Neuro; Neurology; Point in time; QNT; Quan; Quant; Quantitative; Random; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid

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.

Related SNOMED CT concepts

Related observations and tests

Common synonyms

Frequently asked questions