LOINCActiveBoth

LOINC Code 44801-9: Aldolase (Pleur fld) [Catalytic activity/Vol]

44801-9 is a LOINC code used to identify Aldolase (Pleur fld) [Catalytic activity/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 Aldolase. It is commonly used with the system or sample type Plr 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 Aldolase. 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: Both

What it does not mean

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

Key facts

  • Aldolase [Enzymatic activity/volume] in Pleural fluid
  • Aldolase
  • Catalytic Concentration; Chemistry; Fructose Aldolase; Fructose Biphosphate Aldolase; 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

Aldolase (Pleur fld) [Catalytic activity/Vol]Aldolase [Enzymatic activity/volume] in Pleural fluidAldolase Plr-cCncAldolaseCHEMAldolase, Pleural fluidCCnc

Frequently asked questions

Code details

Code44801-9
SystemLOINC
Display nameAldolase (Pleur fld) [Catalytic activity/Vol]
DescriptionAldolase
Short nameAldolase Plr-cCnc
ComponentAldolase
PropertyCCnc
TimingPt
System (specimen)Plr fld
ScaleQn
ClassCHEM
Example unitsarb U/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.68

Consumer names

Aldolase, Pleural fluid

Part names

AldolaseCCncPtPlr fldQnCatalytic 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.

LOINC Code 44801-9 | HealthAssure