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.

LOINCObservation

LOINC Code 20494-1: Lymphocytes/100 WBC Manual cnt (Body fld)

Name: LOINC Code 20494-1: Lymphocytes/100 WBC Manual cnt (Body fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:28.848Z

20494-1 is a LOINC code used to identify Lymphocytes/100 WBC Manual cnt (Body 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 Lymphocytes/100 leukocytes. It is commonly used with the system or sample type Body 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 Lymphocytes/100 leukocytes. It is commonly used with the system or sample type Body 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: DEPRECATED
Order vs observation: Observation
Method: Manual count

What it does not mean

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

Key facts

Deprecated Lymphocytes/100 leukocytes in Body fluid by Manual count
Lymphocytes/100 leukocytes
100WBC; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Fl; Fld; FLU; Fluid; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Lymp; Lymph; Lympho; Lymphocyte; Lymphs; Lymphs%; Manl; Number fraction; Percent; 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

Lymphocytes/100 WBC Manual cnt (Body fld)Deprecated Lymphocytes/100 leukocytes in Body fluid by Manual countDeprecated Lymphocytes Fr Fld ManualLymphocytes/100 leukocytesHEM/BCLymphocytes per 100 white blood cells, Body fluidNFr

Frequently asked questions

Code details

Code20494-1

SystemLOINC

Display nameLymphocytes/100 WBC Manual cnt (Body fld)

DescriptionLymphocytes/100 leukocytes

Short nameDeprecated Lymphocytes Fr Fld Manual

ComponentLymphocytes/100 leukocytes

PropertyNFr

TimingPt

System (specimen)Body fld

ScaleQn

MethodManual count

ClassHEM/BC

Example units%

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.36

Consumer names

Lymphocytes per 100 white blood cells, Body fluid

Part names

Lymphocytes/100 leukocytesNFrPtBody fldQnManual countNumber FractionPoint in time (spot)Body 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.