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 49782-6: Mononuclear cells/Leukocytes (Pericard fld)

Name: LOINC Code 49782-6: Mononuclear cells/Leukocytes (Pericard fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.943Z

49782-6 is a LOINC code used to identify Mononuclear cells/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 Mononuclear cells/Leukocytes. It is commonly used with the system or sample type Pericard fld.

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 Mononuclear cells/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: Both

What it does not mean

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

Key facts

Mononuclear cells/Leukocytes in Pericardial fluid
Mononuclear cells/Leukocytes
Cardio; Cardiology; Cell; Cellularity; Heart Disease; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Mononuc; Mononuc Cells; Number Fraction; PCAR; Percent; Pericardial fluid; Point in time; QNT; Quan; Quant; Quantitative; Random; 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.

Common synonyms

Mononuclear cells/Leukocytes (Pericard fld)Mononuclear cells/Leukocytes in Pericardial fluidMononuc Cells NFr PcarMononuclear cells/LeukocytesHEM/BCMononuclear cells/White Blood Cells, Pericardial fluidNFr

Frequently asked questions

Code details

Code49782-6

SystemLOINC

Display nameMononuclear cells/Leukocytes (Pericard fld)

DescriptionMononuclear cells/Leukocytes

Short nameMononuc Cells NFr Pcar

ComponentMononuclear cells/Leukocytes

PropertyNFr

TimingPt

System (specimen)Pericard fld

ScaleQn

ClassHEM/BC

Example units%

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.79

Consumer names

Mononuclear cells/White Blood Cells, Pericardial fluid

Part names

Mononuclear cells/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.