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 23113-4: Foot and mouth disease virus Ag CF Ql (Throat)

Name: LOINC Code 23113-4: Foot and mouth disease virus Ag CF Ql (Throat)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

23113-4 is a LOINC code used to identify Foot and mouth disease virus Ag CF Ql (Throat) 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 Foot and mouth disease virus Ag. It is commonly used with the system or sample type Thrt.

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 Foot and mouth disease virus Ag. It is commonly used with the system or sample type Thrt.

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: Comp fix

What it does not mean

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

Key facts

Foot and mouth disease virus Ag [Presence] in Throat by Complement fixation
Foot and mouth disease virus Ag
Antigen; Antigens; Aphthovirus; CF; Comp fixation; Compfix; Complement fixation; Dis; Diseases; Dz; FMDV; Foot and mouth disease; ID; Infectious Disease; InfectiousDisease; Lower extremity; Microbiology; Ordinal; Picornavirus; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Throat; Upper respiratory; Vet; Veterinary

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 Foot and mouth disease virus Ag CF Ql (Throat) (23113-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Foot and mouth disease virus Ag CF Ql (Throat)Foot and mouth disease virus Ag [Presence] in Throat by Complement fixationFMDV Ag Throat Ql CFFoot and mouth disease virus AgMICROFoot and Mouth Disease virus antigen, ThroatPrThr

Frequently asked questions

Code details

Code23113-4

SystemLOINC

Display nameFoot and mouth disease virus Ag CF Ql (Throat)

DescriptionFoot and mouth disease virus Ag

Short nameFMDV Ag Throat Ql CF

ComponentFoot and mouth disease virus Ag

PropertyPrThr

TimingPt

System (specimen)Thrt

ScaleOrd

MethodComp fix

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0n

Last changed2.56

Consumer names

Foot and Mouth Disease virus antigen, Throat

Part names

Foot and mouth disease virus AgPrThrPtThrtOrdComp fixPresence or ThresholdPoint in time (spot)ThroatComplement fixation

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.