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LOINC Code 40670-2: Smudge cells/Leukocytes Manual cnt (Body fld)

40670-2 is a LOINC code used to identify Smudge 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 Smudge 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 Smudge 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

  • Smudge cells/Leukocytes in Body fluid by Manual count
  • Smudge cells/Leukocytes
  • B/F; Basket cells; BF; bod; Bodies; Body fluid; Body fluid, unsp; Cell; Cellularity; Fl; Fld; FLU; Fluid; Gumprecht shadows; 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.

Common synonyms

Smudge cells/Leukocytes Manual cnt (Body fld)Smudge cells/Leukocytes in Body fluid by Manual countSmudge Cells NFr Fld ManualSmudge cells/LeukocytesHEM/BCSmudge cells/White Blood Cells, Body fluidNFr

Frequently asked questions

Code details

Code40670-2
SystemLOINC
Display nameSmudge cells/Leukocytes Manual cnt (Body fld)
DescriptionSmudge cells/Leukocytes
Short nameSmudge Cells NFr Fld Manual
ComponentSmudge 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 released2.15
Last changed2.79

Consumer names

Smudge cells/White Blood Cells, Body fluid

Part names

Smudge 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.