LOINCActiveBoth

LOINC Code 31873-3: Mareks disease virus Ag Ql (Feather)

31873-3 is a LOINC code used to identify Mareks disease virus Ag Ql (Feather) 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 Mareks disease virus Ag. It is commonly used with the system or sample type Feather.

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 Mareks disease virus Ag. It is commonly used with the system or sample type Feather.

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

  • Mareks disease virus Ag [Presence] in Feather
  • Mareks disease virus Ag
  • Antigen; Antigens; Dis; Diseases; Dz; Feathers; GaHV; Herpesvirus; Herpesviruss; ID; Infectious Disease; InfectiousDisease; Mareks disease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Mareks disease virus Ag Ql (Feather)Mareks disease virus Ag [Presence] in FeatherGaHV Ag Feather QlMareks disease virus AgMICROMareks Disease virus antigen, FeatherPrThr

Frequently asked questions

Code details

Code31873-3
SystemLOINC
Display nameMareks disease virus Ag Ql (Feather)
DescriptionMareks disease virus Ag
Short nameGaHV Ag Feather Ql
ComponentMareks disease virus Ag
PropertyPrThr
TimingPt
System (specimen)Feather
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.56

Consumer names

Mareks Disease virus antigen, Feather

Part names

Mareks disease virus AgPrThrPtFeatherOrdPresence 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.

LOINC Code 31873-3 | HealthAssure