LOINC Code 46128-5: tTG IgA IA Qn (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 Tissue transglutaminase Ab.IgA. 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

• Tissue transglutaminase IgA Ab [Units/volume] in Serum by Immunoassay
• Tissue transglutaminase Ab.IgA
• ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Celiac disease; EIA; ELFA; ELISA; Enzyme immunoassay; Fibrin stabilizing factor; Gastro; Gastroenterology; GI; IAA; Immune globulin A; Immunoglobulin A; MEIA; Point in time; Protein-glutamine gamma glutamyltransferase; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; SR; SUDS; TG2; tTG; UniversalLabOrders

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