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 23769-3: Porcine influenza virus A Ag Immune stain Ql (Tiss)

Name: LOINC Code 23769-3: Porcine influenza virus A Ag Immune stain Ql (Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:12.417Z

23769-3 is a LOINC code used to identify Porcine influenza virus A Ag Immune stain Ql (Tiss) 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 Porcine influenza virus A Ag. It is commonly used with the system or sample type Tiss.

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 Porcine influenza virus A Ag. It is commonly used with the system or sample type Tiss.

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: Immune stain

What it does not mean

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

Key facts

Porcine influenza virus A Ag [Presence] in Tissue by Immune stain
Porcine influenza virus A Ag
Antigen; Antigens; Avian influenza; Bird flu; FLUA; FLUAV; FLUV; Fowl plague; ID; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Infectious Disease; InfectiousDisease; Influ; Influenza A; Influenza A virus; Microbiology; Ordinal; Point in time; Porcine FLUAV; Pork; PR; QL; Qual; Qualitative; Random; Screen; St; Stains; Stn; Swine; Tissue; Tissue, unspecified; 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.

Common synonyms

Porcine influenza virus A Ag Immune stain Ql (Tiss)Porcine influenza virus A Ag [Presence] in Tissue by Immune stainPorcine FLUAV Ag Tiss Ql ImStnPorcine influenza virus A AgMICROPorcine Influenza virus A antigen, TissuePrThr

Frequently asked questions

Code details

Code23769-3

SystemLOINC

Display namePorcine influenza virus A Ag Immune stain Ql (Tiss)

DescriptionPorcine influenza virus A Ag

Short namePorcine FLUAV Ag Tiss Ql ImStn

ComponentPorcine influenza virus A Ag

PropertyPrThr

TimingPt

System (specimen)Tiss

ScaleOrd

MethodImmune stain

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0n

Last changed2.64

Consumer names

Porcine Influenza virus A antigen, Tissue

Part names

Porcine influenza virus A AgPrThrPtTissOrdImmune stainPresence or ThresholdPoint in time (spot)Tissue and Smears

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.