LOINCActiveBoth

LOINC Code 31722-2: Avian infectious laryngotracheitis virus Ag Ql (Specimen)

31722-2 is a LOINC code used to identify Avian infectious laryngotracheitis virus Ag 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 Avian infectious laryngotracheitis 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 Avian infectious laryngotracheitis 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

What it does not mean

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

Key facts

  • Avian infectious laryngotracheitis virus Ag [Presence] in Specimen
  • Avian infectious laryngotracheitis virus Ag
  • Alpha-herpesvirus; Antigen; Antigens; Avian infectious laryngotracheitis; Bird; Fowl; ID; ILT; Infectious Disease; InfectiousDisease; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; 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

Avian infectious laryngotracheitis virus Ag Ql (Specimen)Avian infectious laryngotracheitis virus Ag [Presence] in SpecimenILT Ag Spec QlAvian infectious laryngotracheitis virus AgMICROAvian Infectious Laryngotracheitis virus antigen, SpecimenPrThr

Frequently asked questions

Code details

Code31722-2
SystemLOINC
Display nameAvian infectious laryngotracheitis virus Ag Ql (Specimen)
DescriptionAvian infectious laryngotracheitis virus Ag
Short nameILT Ag Spec Ql
ComponentAvian infectious laryngotracheitis virus Ag
PropertyPrThr
TimingPt
System (specimen)XXX
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.69

Consumer names

Avian Infectious Laryngotracheitis virus antigen, Specimen

Part names

Avian infectious laryngotracheitis virus AgPrThrPtXXXOrdPresence 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 31722-2 | HealthAssure