LOINCActiveObservation

LOINC Code 58904-4: Nucleated cells Manual cnt (Pleur fld) [#/Vol]

58904-4 is a LOINC code used to identify Nucleated cells Manual cnt (Pleur fld) [#/Vol] 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 Nucleated cells. It is commonly used with the system or sample type Plr 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 Nucleated cells. It is commonly used with the system or sample type Plr 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

  • Nucleated cells [#/volume] in Pleural fluid by Manual count
  • Nucleated cells
  • #; ABS; absolute; absolutes; Cell; Cellularity; Cnt; Count; Count/volume; CT; HEMATOLOGY/CELL COUNTS; Manl; Nuc; Nuc cell; Number concentration; Number Concentration (count/vol); Pleural; Pleural fluid; Point in time; QNT; Quan; Quant; Quantitative; Random; thoracentesis fluid

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

Nucleated cells Manual cnt (Pleur fld) [#/Vol]Nucleated cells [#/volume] in Pleural fluid by Manual countNuc cell # Plr ManualNucleated cellsHEM/BCNucleated cells, Pleural fluidNCnc

Frequently asked questions

Code details

Code58904-4
SystemLOINC
Display nameNucleated cells Manual cnt (Pleur fld) [#/Vol]
DescriptionNucleated cells
Short nameNuc cell # Plr Manual
ComponentNucleated cells
PropertyNCnc
TimingPt
System (specimen)Plr fld
ScaleQn
MethodManual count
ClassHEM/BC
Example units/uL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.70

Consumer names

Nucleated cells, Pleural fluid

Part names

Nucleated cellsNCncPtPlr fldQnManual countNumber ConcentrationPoint in time (spot)Pleural 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.