LOINCActiveBoth

LOINC Code 6456-8: L. monocytogenes Ab CF (S) [Titer]

6456-8 is a LOINC code used to identify L. monocytogenes 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 Listeria monocytogenes 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 Listeria monocytogenes 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

  • Listeria monocytogenes Ab [Titer] in Serum by Complement fixation
  • Listeria monocytogenes Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; CF; Comp fixation; Compfix; Complement fixation; Dilution factor; Dilution Factor (Titer); ID; Infectious Disease; InfectiousDisease; L monocytog; L monocytogenes; Listeriosis; 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

L. monocytogenes Ab CF (S) [Titer]Listeria monocytogenes Ab [Titer] in Serum by Complement fixationL monocytog Ab Titr Ser CFListeria monocytogenes AbMICROListeria monocytogenes antibody, BloodTitr

Frequently asked questions

Code details

Code6456-8
SystemLOINC
Display nameL. monocytogenes Ab CF (S) [Titer]
DescriptionListeria monocytogenes Ab
Short nameL monocytog Ab Titr Ser CF
ComponentListeria monocytogenes 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 released1.0f
Last changed2.75

Consumer names

Listeria monocytogenes antibody, Blood

Part names

Listeria monocytogenes 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 6456-8 | HealthAssure