LOINC Code 7408-8: Histamine extract triggered histamine release Qn (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 Histamine extract basophil bound Ab. 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: Both
• Method: LHR

What it does not mean

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

Key facts

• Histamine extract triggered histamine release [Units/volume] in Blood
• Histamine extract basophil bound Ab
• ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Associated; Autoantibodies; Autoantibody; Baso; BasoBnd Ab; Basophil release; Basophils; Basos; Blood; bnd; Bph; Leukocyte histamine reaction; Leukocyte histamine release; Point in time; QNT; Quan; Quant; Quantitative; Random; WB; WBC release; 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