LOINC Code 74753-5: Blood group antigens present IAT Nom (Bld)

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 Blood group antigens present. It is commonly used with the system or sample type Bld.

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: Observation
• Method: Indirect antiglobulin test

What it does not mean

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

Key facts

• Blood group antigens present [Identifier] in Blood by IAT
• Blood group antigens present
• Red blood cell antigen typing is used to identify specific antigens on the red cell. Red cell antigen typing uses patient cells and reagent antiserum with a known antibody. The antiglobulin technique is used for antigens such as Kell (K), Duffy (Fya, FYb) and others.
• Ag; Antiglob; Blood; BLOOD BANK; IAT; Identity or presence; Ind; Indir; Nominal; Point in time; Random; WB; Whole blood

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