What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 57089-5: Eosinophil cationic protein (ECP) (Nasal fluid) [Mass/Vol]

Name: LOINC Code 57089-5: Eosinophil cationic protein (ECP) (Nasal fluid) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

57089-5 is a LOINC code used to identify Eosinophil cationic protein (ECP) (Nasal fluid) [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 Eosinophil cationic protein. It is commonly used with the system or sample type Nasal fluid.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Eosinophil cationic protein. It is commonly used with the system or sample type Nasal fluid.

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

Eosinophil cationic protein (ECP) [Mass/volume] in Nasal fluid
Eosinophil cationic protein
Allergen; Allergens; ALLERGY TESTING; ECP; Eos; Eosin; Eosino; Eosinophils; Level; Mass concentration; Point in time; PR; Prot; QNT; Quan; Quant; Quantitative; Random

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Eosinophil cationic protein (ECP) (Nasal fluid) [Mass/Vol] (57089-5)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Eosinophil cationic protein (ECP) (Nasal fluid) [Mass/Vol]Eosinophil cationic protein (ECP) [Mass/volume] in Nasal fluidECP Nasal fluid-mCncEosinophil cationic proteinALLERGYEosinophil Cationic Protein (ECP), Nasal FluidMCnc

Frequently asked questions

Code details

Code57089-5

SystemLOINC

Display nameEosinophil cationic protein (ECP) (Nasal fluid) [Mass/Vol]

DescriptionEosinophil cationic protein

Short nameECP Nasal fluid-mCnc

ComponentEosinophil cationic protein

PropertyMCnc

TimingPt

System (specimen)Nasal fluid

ScaleQn

ClassALLERGY

Example unitsug/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.42

Consumer names

Eosinophil Cationic Protein (ECP), Nasal Fluid

Part names

Eosinophil cationic proteinMCncPtNasal fluidQnEosinophil cationic protein (ECP)Mass ConcentrationPoint in time (spot)

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.