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 39355-3: Cholinesterase.fluoride inhibited/Cholinesterase [Catalytic fraction]

Name: LOINC Code 39355-3: Cholinesterase.fluoride inhibited/Cholinesterase [Catalytic fraction]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:26.652Z

39355-3 is a LOINC code used to identify Cholinesterase.fluoride inhibited/Cholinesterase [Catalytic fraction] 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 Cholinesterase.fluoride inhibited/Cholinesterase. It is commonly used with the system or sample type Ser/Plas.

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 Cholinesterase.fluoride inhibited/Cholinesterase. It is commonly used with the system or sample type Ser/Plas.

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

Cholinesterase.fluoride inhibited/Cholinesterase in Serum or Plasma
Cholinesterase.fluoride inhibited/Cholinesterase
Acylcholine acylhydrolase; BChE; Benzoyl cholinesterase; Benzoylcholinesterase; Butyrylcholine esterase; Catalytic Fraction; CHe; Chemistry; Choline esterase II; CHS; Fl; Fluoride number; Percent; Pl; Plasma; Plsm; Point in time; Pseudocho; Pseudocholinesterase; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Cholinesterase.fluoride inhibited/Cholinesterase [Catalytic fraction]Cholinesterase.fluoride inhibited/Cholinesterase in Serum or PlasmaFluoride Inhib/CHe CFr SerPlCholinesterase.fluoride inhibited/CholinesteraseCHEMCholinesterase.fluoride inhibited/Cholinesterase, BloodCFr

Frequently asked questions

Code details

Code39355-3

SystemLOINC

Display nameCholinesterase.fluoride inhibited/Cholinesterase [Catalytic fraction]

DescriptionCholinesterase.fluoride inhibited/Cholinesterase

Short nameFluoride Inhib/CHe CFr SerPl

ComponentCholinesterase.fluoride inhibited/Cholinesterase

PropertyCFr

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.15

Last changed2.70

Consumer names

Cholinesterase.fluoride inhibited/Cholinesterase, Blood

Part names

Cholinesterase.fluoride inhibited/CholinesteraseCFrPtSer/PlasQnCatalytic FractionPoint in time (spot)Serum or Plasma

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.