LOINCActiveObservation

LOINC Code 49494-8: Leukemia markers Nar (Pleur fld) [Interp]

49494-8 is a LOINC code used to identify Leukemia markers Nar (Pleur fld) [Interp] 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 Leukemia markers. 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 Leukemia markers. 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

What it does not mean

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

Key facts

  • Leukemia markers [Interpretation] in Pleural fluid Narrative
  • Leukemia markers
  • CELL MARKERS; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; Pleural; Pleural fluid; Point in time; Random; Report; 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

Leukemia markers Nar (Pleur fld) [Interp]Leukemia markers [Interpretation] in Pleural fluid NarrativeLeukemia markers Plr-ImpLeukemia markersCELLMARKInterpretation of Leukemia markers test result, Pleural fluidImp

Frequently asked questions

Code details

Code49494-8
SystemLOINC
Display nameLeukemia markers Nar (Pleur fld) [Interp]
DescriptionLeukemia markers
Short nameLeukemia markers Plr-Imp
ComponentLeukemia markers
PropertyImp
TimingPt
System (specimen)Plr fld
ScaleNar
ClassCELLMARK
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.26

Consumer names

Interpretation of Leukemia markers test result, Pleural fluid

Part names

Leukemia markersImpPtPlr fldNarImpression/interpretation of studyPoint 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.