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LOINC Code 9754-3: Coxsackievirus A4 Ab CF (S) [Titer]

9754-3 is a LOINC code used to identify Coxsackievirus A4 Ab CF (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 Coxsackievirus A4 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 Coxsackievirus A4 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: Comp fix

What it does not mean

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

Key facts

  • Coxsackievirus A4 Ab [Titer] in Serum by Complement fixation
  • Coxsackievirus A4 Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; CAV; CF; Comp fixation; Compfix; Complement fixation; Coxsackie; Coxsackie virus; CV; CV A4; Dilution factor; Dilution Factor (Titer); ID; Infectious Disease; InfectiousDisease; 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

Coxsackievirus A4 Ab CF (S) [Titer]Coxsackievirus A4 Ab [Titer] in Serum by Complement fixationCV A4 Ab Titr Ser CFCoxsackievirus A4 AbMICROCoxsackievirus A4 antibody, BloodTitr

Frequently asked questions

Code details

Code9754-3
SystemLOINC
Display nameCoxsackievirus A4 Ab CF (S) [Titer]
DescriptionCoxsackievirus A4 Ab
Short nameCV A4 Ab Titr Ser CF
ComponentCoxsackievirus A4 Ab
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodComp fix
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Coxsackievirus A4 antibody, Blood

Part names

Coxsackievirus A4 AbTitrPtSerSemiQnComp fixTiterPoint in time (spot)SerumComplement fixation

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 9754-3 | HealthAssure