What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 40737-9: MuV IgG IA Ql (CSF)

Name: LOINC Code 40737-9: MuV IgG IA Ql (CSF)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:27.146Z

40737-9 is a LOINC code used to identify MuV IgG IA Ql (CSF) in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Mumps virus Ab.IgG. It is commonly used with the system or sample type CSF.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 Mumps virus Ab.IgG. 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
Method: IA

What it does not mean

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

Key facts

Mumps virus IgG Ab [Presence] in Cerebral spinal fluid by Immunoassay
Mumps virus Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; MuV; Neuro; Neurology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; SUDS

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

MuV IgG IA Ql (CSF)Mumps virus IgG Ab [Presence] in Cerebral spinal fluid by ImmunoassayMuV IgG CSF Ql IAMumps virus Ab.IgGMICROMumps virus IgG antibody, Spinal fluidPrThr

Frequently asked questions

Code details

Code40737-9

SystemLOINC

Display nameMuV IgG IA Ql (CSF)

DescriptionMumps virus Ab.IgG

Short nameMuV IgG CSF Ql IA

ComponentMumps virus Ab.IgG

PropertyPrThr

TimingPt

System (specimen)CSF

ScaleOrd

MethodIA

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.15

Last changed2.56

Consumer names

Mumps virus IgG antibody, Spinal fluid

Part names

Mumps virus Ab.IgGPrThrPtCSFOrdIAMumps virus IgGPresence or ThresholdPoint in time (spot)Cerebral spinal fluidImmunoassay

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.