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 58791-5: Coxsackievirus A9 IgM IF (S) [Titer]

Name: LOINC Code 58791-5: Coxsackievirus A9 IgM IF (S) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

58791-5 is a LOINC code used to identify Coxsackievirus A9 IgM IF (S) [Titer] 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 Coxsackievirus A9 Ab.IgM. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Coxsackievirus A9 Ab.IgM. It is commonly used with the system or sample type Ser.

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

Coxsackievirus A9 IgM Ab [Titer] in Serum by Immunofluorescence
Coxsackievirus A9 Ab.IgM
ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; CAV; Coxsackie; Coxsackie virus; CV; CV A9; Dilution factor; Dilution Factor (Titer); FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immune globulin M; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Point in time; Random; Serum; SmQn; SR; Time Resolved Fluorescence; Titer; Titered; Titre; TRF; Ttr

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

705114005SNOMED CT mapping for Coxsackievirus A9 IgM IF (S) [Titer] (58791-5)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Coxsackievirus A9 IgM IF (S) [Titer]Coxsackievirus A9 IgM Ab [Titer] in Serum by ImmunofluorescenceCV A9 IgM Titr Ser IFCoxsackievirus A9 Ab.IgMMICROCoxsackievirus A9 IgM antibody, BloodTitr

Frequently asked questions

Code details

Code58791-5

SystemLOINC

Display nameCoxsackievirus A9 IgM IF (S) [Titer]

DescriptionCoxsackievirus A9 Ab.IgM

Short nameCV A9 IgM Titr Ser IF

ComponentCoxsackievirus A9 Ab.IgM

PropertyTitr

TimingPt

System (specimen)Ser

ScaleSemiQn

MethodIF

ClassMICRO

Example unitsTiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.32

Last changed2.75

Consumer names

Coxsackievirus A9 IgM antibody, Blood

Part names

Coxsackievirus A9 Ab.IgMTitrPtSerSemiQnIFCoxsackievirus A9 IgMTiterPoint in time (spot)SerumImmunofluorescence (IF)

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.