LOINC Code 89642-3: C. diphtheriae toxin IgG IA Ql (S)

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 Corynebacterium diphtheriae toxin Ab.IgG. 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

• Corynebacterium diphtheriae toxin IgG Ab [Presence] in Serum by Immunoassay
• Corynebacterium diphtheriae toxin Ab.IgG
• ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; C diphtheriae; C diphtheriae Tox; Diphtheria; Diptheria; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; SUDS

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

Frequently asked questions