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 23335-3: Ovine progressive pneumonia virus Ag Immune stain Ql (Specimen)

Name: LOINC Code 23335-3: Ovine progressive pneumonia virus Ag Immune stain Ql (Specimen)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:30.731Z

23335-3 is a LOINC code used to identify Ovine progressive pneumonia virus Ag Immune stain Ql (Specimen) 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 Ovine progressive pneumonia virus Ag. It is commonly used with the system or sample type XXX.

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 Ovine progressive pneumonia virus Ag. It is commonly used with the system or sample type XXX.

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

Ovine progressive pneumonia virus Ag [Presence] in Specimen by Immune stain
Ovine progressive pneumonia virus Ag
Antigen; Antigens; ID; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Infectious Disease; InfectiousDisease; Lentivirus; Maedi Visna; Microbiology; Misc; Miscellaneous; OPPV; Ordinal; Other; Ovine progressive pneumonia; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; St; Stains; Stn; To be specified in another part of the message; 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

Ovine progressive pneumonia virus Ag Immune stain Ql (Specimen)Ovine progressive pneumonia virus Ag [Presence] in Specimen by Immune stainOPPV Ag Spec Ql ImStnOvine progressive pneumonia virus AgMICROOvine Progressive Pneumonia virus antigen, SpecimenPrThr

Frequently asked questions

Code details

Code23335-3

SystemLOINC

Display nameOvine progressive pneumonia virus Ag Immune stain Ql (Specimen)

DescriptionOvine progressive pneumonia virus Ag

Short nameOPPV Ag Spec Ql ImStn

ComponentOvine progressive pneumonia virus Ag

PropertyPrThr

TimingPt

System (specimen)XXX

ScaleOrd

MethodImmune stain

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0n

Last changed2.69

Consumer names

Ovine Progressive Pneumonia virus antigen, Specimen

Part names

Ovine progressive pneumonia virus AgPrThrPtXXXOrdImmune stainPresence or ThresholdPoint in time (spot)

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.