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.

LOINCActiveObservation

LOINC Code 33387-2: Segmented neutrophils/Leukocytes (Pericard fld)

Name: LOINC Code 33387-2: Segmented neutrophils/Leukocytes (Pericard fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

33387-2 is a LOINC code used to identify Segmented neutrophils/Leukocytes (Pericard fld) 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 Neutrophils.segmented/Leukocytes. It is commonly used with the system or sample type Pericard fld.

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 Neutrophils.segmented/Leukocytes. It is commonly used with the system or sample type Pericard fld.

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

What it does not mean

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

Key facts

Segmented neutrophils/Leukocytes in Pericardial fluid
Neutrophils.segmented/Leukocytes
Cardio; Cardiology; Heart Disease; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Neut; Neutr; Neutrophil; Neuts Seg; N-Seg; Number fraction; Pcar; Percent; Pericardial fluid; PMN; PNM; Point in time; QNT; Quan; Quant; Quantitative; Random; Seg; Segs; WBC; WBCs; White blood cell; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Segmented neutrophils/Leukocytes (Pericard fld) (33387-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Segmented neutrophils/Leukocytes (Pericard fld)Segmented neutrophils/Leukocytes in Pericardial fluidNeuts Seg NFr PcarNeutrophils.segmented/LeukocytesHEM/BCSegmented neutrophils/White Blood Cells, Pericardial fluidNFr

Frequently asked questions

Code details

Code33387-2

SystemLOINC

Display nameSegmented neutrophils/Leukocytes (Pericard fld)

DescriptionNeutrophils.segmented/Leukocytes

Short nameNeuts Seg NFr Pcar

ComponentNeutrophils.segmented/Leukocytes

PropertyNFr

TimingPt

System (specimen)Pericard fld

ScaleQn

ClassHEM/BC

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.79

Consumer names

Segmented neutrophils/White Blood Cells, Pericardial fluid

Part names

Neutrophils.segmented/leukocytesNFrPtPericard fldQnNumber FractionPoint in time (spot)Pericardial fluid

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.