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 44491-9: HSV 2 Ab Ql (Body fld)

Name: LOINC Code 44491-9: HSV 2 Ab Ql (Body fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

44491-9 is a LOINC code used to identify HSV 2 Ab Ql (Body fld) 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 Herpes simplex virus 2 Ab. It is commonly used with the system or sample type Body fld.

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 Herpes simplex virus 2 Ab. It is commonly used with the system or sample type Body fld.

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

Herpes simplex virus 2 Ab [Presence] in Body fluid
Herpes simplex virus 2 Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Fl; Fld; FLU; Fluid; Herp splx; Herpes simplex virus type 2; Herpes simplex virus type II; HSV; HSV2; ID; II; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen

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 HSV 2 Ab Ql (Body fld) (44491-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

HSV 2 Ab Ql (Body fld)Herpes simplex virus 2 Ab [Presence] in Body fluidHSV2 Ab Fld QlHerpes simplex virus 2 AbMICROHerpes simplex virus 2 (HSV 2) antibody, Body fluidPrThr

Frequently asked questions

Code details

Code44491-9

SystemLOINC

Display nameHSV 2 Ab Ql (Body fld)

DescriptionHerpes simplex virus 2 Ab

Short nameHSV2 Ab Fld Ql

ComponentHerpes simplex virus 2 Ab

PropertyPrThr

TimingPt

System (specimen)Body fld

ScaleOrd

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.56

Consumer names

Herpes simplex virus 2 (HSV 2) antibody, Body fluid

Part names

Herpes simplex virus 2 AbPrThrPtBody fldOrdPresence or ThresholdPoint in time (spot)Body fluid

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.