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 23078-9: Equine arteritis virus Ag Immune stain Ql (Tiss)

Name: LOINC Code 23078-9: Equine arteritis virus Ag Immune stain Ql (Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:30.729Z

23078-9 is a LOINC code used to identify Equine arteritis virus 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 Equine arteritis virus 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 Equine arteritis virus 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

Equine arteritis virus Ag [Presence] in Tissue by Immune stain
Equine arteritis virus Ag
Antigen; Antigens; Arterivirus; EAV; Equin; Equine viral arteritis; ID; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; St; Stains; Stn; 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

Equine arteritis virus Ag Immune stain Ql (Tiss)Equine arteritis virus Ag [Presence] in Tissue by Immune stainEAV Ag Tiss Ql ImStnEquine arteritis virus AgMICROEquine arteritis virus antigen, TissuePrThr

Frequently asked questions

Code details

Code23078-9

SystemLOINC

Display nameEquine arteritis virus Ag Immune stain Ql (Tiss)

DescriptionEquine arteritis virus Ag

Short nameEAV Ag Tiss Ql ImStn

ComponentEquine arteritis virus 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 changed2.56

Consumer names

Equine arteritis virus antigen, Tissue

Part names

Equine arteritis virus 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.