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 31686-9: Transmissible gastroenteritis virus Ab Qn (S)

Name: LOINC Code 31686-9: Transmissible gastroenteritis virus Ab Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:17.665Z

31686-9 is a LOINC code used to identify Transmissible gastroenteritis virus Ab Qn (S) 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 Transmissible gastroenteritis virus Ab. It is commonly used with the system or sample type Ser.

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 Transmissible gastroenteritis virus Ab. It is commonly used with the system or sample type Ser.

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

Transmissible gastroenteritis virus Ab [Units/volume] in Serum
Transmissible gastroenteritis virus Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Coronavirus; ID; Infectious Disease; InfectiousDisease; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; TGEV; Transmissible gastroenteritis; 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

Transmissible gastroenteritis virus Ab Qn (S)Transmissible gastroenteritis virus Ab [Units/volume] in SerumTGEV Ab Ser-aCncTransmissible gastroenteritis virus AbMICROTransmissible Gastroenteritis virus antibody, BloodACnc

Frequently asked questions

Code details

Code31686-9

SystemLOINC

Display nameTransmissible gastroenteritis virus Ab Qn (S)

DescriptionTransmissible gastroenteritis virus Ab

Short nameTGEV Ab Ser-aCnc

ComponentTransmissible gastroenteritis virus Ab

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.07

Last changed2.69

Consumer names

Transmissible Gastroenteritis virus antibody, Blood

Part names

Transmissible gastroenteritis virus AbACncPtSerQnArbitrary ConcentrationPoint in time (spot)Serum

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.