LOINCBoth

LOINC Code 43054-6: C. tetani toxin Ab Qn (S)

43054-6 is a LOINC code used to identify C. tetani toxin 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 Clostridium tetani toxin 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 Clostridium tetani toxin 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: DEPRECATED
  • Order vs observation: Both

What it does not mean

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

Key facts

  • Deprecated Clostridium tetani toxin Ab [Units/volume] in Serum
  • Clostridium tetani toxin Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; C tetani; C tetani Tox; c12; ID; Infectious Disease; InfectiousDisease; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; Tet; Tetanus

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

C. tetani toxin Ab Qn (S)Deprecated Clostridium tetani toxin Ab [Units/volume] in SerumDeprecated C tetani Tox Ab Ser-aCncClostridium tetani toxin AbMICROClostridium tetani toxin antibody, BloodACnc

Frequently asked questions

Code details

Code43054-6
SystemLOINC
Display nameC. tetani toxin Ab Qn (S)
DescriptionClostridium tetani toxin Ab
Short nameDeprecated C tetani Tox Ab Ser-aCnc
ComponentClostridium tetani toxin Ab
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassMICRO
StatusDEPRECATED
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.69

Consumer names

Clostridium tetani toxin antibody, Blood

Part names

Clostridium tetani toxin 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.

LOINC Code 43054-6 | HealthAssure