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 13355-3: Unspecified cells/Leukocytes Manual cnt (Body fld)

Name: LOINC Code 13355-3: Unspecified cells/Leukocytes Manual cnt (Body fld)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

13355-3 is a LOINC code used to identify Unspecified cells/Leukocytes 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 Unspecified cells/Leukocytes. It is commonly used with the system or sample type Body 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 Unspecified cells/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: ACTIVE
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

Unspecified cells/Leukocytes in Body fluid by Manual count
Unspecified cells/Leukocytes
B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Cell; Cellularity; Fl; Fld; FLU; Fluid; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Unspecified cells/Leukocytes Manual cnt (Body fld) (13355-3)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Unspecified cells/Leukocytes Manual cnt (Body fld)Unspecified cells/Leukocytes in Body fluid by Manual countUnspecified Cells NFr Fld ManualUnspecified cells/LeukocytesHEM/BCUnspecified cells/White Blood Cells, Body fluidNFr

Frequently asked questions

Code details

Code13355-3

SystemLOINC

Display nameUnspecified cells/Leukocytes Manual cnt (Body fld)

DescriptionUnspecified cells/Leukocytes

Short nameUnspecified Cells NFr Fld Manual

ComponentUnspecified cells/Leukocytes

PropertyNFr

TimingPt

System (specimen)Body fld

ScaleQn

MethodManual count

ClassHEM/BC

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0j-a

Last changed2.79

Consumer names

Unspecified cells/White Blood Cells, Body fluid

Part names

Unspecified cells/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.