LOINCActiveBoth

LOINC Code 7742-0: Tomato triggered histamine release Qn (Bld)

7742-0 is a LOINC code used to identify Tomato triggered histamine release Qn (Bld) 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 Lycopersicon lycopersicum basophil bound Ab. It is commonly used with the system or sample type Bld.

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 Lycopersicon lycopersicum 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

  • Tomato triggered histamine release [Units/volume] in Blood
  • Lycopersicon lycopersicum 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; f25; Leukocyte histamine reaction; Leukocyte histamine release; Lycopersicon esculatum; Lycopersicon lycopersicon; Point in time; QNT; Quan; Quant; Quantitative; Random; Tomato; 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

Tomato triggered histamine release Qn (Bld)Tomato triggered histamine release [Units/volume] in BloodTomato BasoBnd Ab QnLycopersicon lycopersicum basophil bound AbALLERGYTomato triggered histamine release, BloodACnc

Frequently asked questions

Code details

Code7742-0
SystemLOINC
Display nameTomato triggered histamine release Qn (Bld)
DescriptionLycopersicon lycopersicum basophil bound Ab
Short nameTomato BasoBnd Ab Qn
ComponentLycopersicon lycopersicum basophil bound Ab
PropertyACnc
TimingPt
System (specimen)Bld
ScaleQn
MethodLHR
ClassALLERGY
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(2)
Last changed2.69

Consumer names

Tomato triggered histamine release, Blood

Part names

Lycopersicon lycopersicum basophil bound AbACncPtBldQnLHRTomato (Lycopersicon lycopersicum) basophil bound AbArbitrary ConcentrationPoint in time (spot)BloodLeukocyte histamine release

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.

LOINC Code 7742-0 | HealthAssure