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 48652-2: C. tetani toxoid IgG spec 2 IA Qn (S)

Name: LOINC Code 48652-2: C. tetani toxoid IgG spec 2 IA Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.168Z

48652-2 is a LOINC code used to identify C. tetani toxoid IgG spec 2 IA 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 toxoid Ab.IgG^2nd specimen. 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 toxoid Ab.IgG^2nd specimen. 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: IA

What it does not mean

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

Key facts

Clostridium tetani toxoid IgG Ab [Units/volume] in Serum by Immunoassay --2nd specimen
Clostridium tetani toxoid Ab.IgG^2nd specimen
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; C tetani; C tetani Toxoid; c12; c208; Convalescent; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Point in time; Post immunization; QNT; Quan; Quant; Quantitative; Random; Rc208; Second; Serum; sp2; Spec; SR; SUDS; Tet; Tetanus; Tetanus toxoid; Ttx

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 toxoid IgG spec 2 IA Qn (S)Clostridium tetani toxoid IgG Ab [Units/volume] in Serum by Immunoassay --2nd specimenC tetani Toxoid IgG sp2 Ser IA-aCncClostridium tetani toxoid Ab.IgG^2nd specimenMICROClostridium tetani toxoid IgG antibody specimen 2, BloodACnc

Frequently asked questions

Code details

Code48652-2

SystemLOINC

Display nameC. tetani toxoid IgG spec 2 IA Qn (S)

DescriptionClostridium tetani toxoid Ab.IgG^2nd specimen

Short nameC tetani Toxoid IgG sp2 Ser IA-aCnc

ComponentClostridium tetani toxoid Ab.IgG^2nd specimen

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodIA

ClassMICRO

Example unitsIU/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.70

Consumer names

Clostridium tetani toxoid IgG antibody specimen 2, Blood

Part names

Clostridium tetani toxoid Ab.IgG^2nd specimenACncPtSerQnIAArbitrary ConcentrationPoint in time (spot)SerumImmunoassay

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.