LOINCActiveBoth

LOINC Code 22823-9: FLUAV Ab Aggl (S) [Titer]

22823-9 is a LOINC code used to identify FLUAV Ab Aggl (S) [Titer] 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 Influenza virus A Ab. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Influenza virus A 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
  • Method: Aggl

What it does not mean

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

Key facts

  • Influenza virus A Ab [Titer] in Serum by Agglutination
  • Influenza virus A Ab
  • ABS; Aby; Agg; Agglut; Agglutination; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Avian influenza; Bird flu; Dilution factor; Dilution Factor (Titer); FLUA; FLUAV; FLUV; Fowl plague; ID; Infectious Disease; InfectiousDisease; Influ; Influenza A; Influenza A virus; Microbiology; Point in time; Random; Serum; SmQn; SR; Titer; Titered; Titre; Ttr

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

FLUAV Ab Aggl (S) [Titer]Influenza virus A Ab [Titer] in Serum by AgglutinationFLUAV Ab Titr Ser AgglInfluenza virus A AbMICROInfluenza A (Flu A) antibody, BloodTitr

Frequently asked questions

Code details

Code22823-9
SystemLOINC
Display nameFLUAV Ab Aggl (S) [Titer]
DescriptionInfluenza virus A Ab
Short nameFLUAV Ab Titr Ser Aggl
ComponentInfluenza virus A Ab
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodAggl
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.75

Consumer names

Influenza A (Flu A) antibody, Blood

Part names

Influenza virus A AbTitrPtSerSemiQnAgglTiterPoint in time (spot)SerumAgglutination

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 22823-9 | HealthAssure