LOINCActiveBoth

LOINC Code 48204-2: Casein triggered leukotriene release (WBC) [Mass/Vol]

48204-2 is a LOINC code used to identify Casein triggered leukotriene release (WBC) [Mass/Vol] 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 Casein leukotriene release. It is commonly used with the system or sample type WBC.

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 Casein leukotriene release. It is commonly used with the system or sample type WBC.

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

What it does not mean

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

Key facts

  • Casein triggered leukotriene release [Mass/volume] by Leukocytes
  • Casein leukotriene release
  • a167; Allergen; Allergens; ALLERGY TESTING; CAST; f078; f78; Leukocytes; Level; LR; Mass Concentration; nBos d 8; Point in time; QNT; Quan; Quant; Quantitative; Random; WBCs; White blood cells

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

Casein triggered leukotriene release (WBC) [Mass/Vol]Casein triggered leukotriene release [Mass/volume] by LeukocytesCasein LR-mCncCasein leukotriene releaseALLERGYCasein triggered leukotriene release, White blood cellsMCnc

Frequently asked questions

Code details

Code48204-2
SystemLOINC
Display nameCasein triggered leukotriene release (WBC) [Mass/Vol]
DescriptionCasein leukotriene release
Short nameCasein LR-mCnc
ComponentCasein leukotriene release
PropertyMCnc
TimingPt
System (specimen)WBC
ScaleQn
ClassALLERGY
Example unitspg/mL sLT
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.70

Consumer names

Casein triggered leukotriene release, White blood cells

Part names

Casein leukotriene releaseMCncPtWBCQnMass ConcentrationPoint in time (spot)White blood cells

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 48204-2 | HealthAssure