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 39357-9: Cholinesterase.chloride inhibited/Cholinesterase [Catalytic fraction]

Name: LOINC Code 39357-9: Cholinesterase.chloride inhibited/Cholinesterase [Catalytic fraction]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:26.652Z

39357-9 is a LOINC code used to identify Cholinesterase.chloride 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.chloride 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.chloride 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.chloride inhibited/Cholinesterase in Serum or Plasma
Cholinesterase.chloride inhibited/Cholinesterase
Acylcholine acylhydrolase; BChE; Benzoyl cholinesterase; Benzoylcholinesterase; Butyrylcholine esterase; Catalytic Fraction; CHe; Chemistry; Chloride number; Choline esterase II; CHS; Cl; Cl-; 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.chloride inhibited/Cholinesterase [Catalytic fraction]Cholinesterase.chloride inhibited/Cholinesterase in Serum or PlasmaChloride Inhib/CHe CFr SerPlCholinesterase.chloride inhibited/CholinesteraseCHEMCholinesterase.chloride inhibited/Cholinesterase, BloodCFr

Frequently asked questions

Code details

Code39357-9

SystemLOINC

Display nameCholinesterase.chloride inhibited/Cholinesterase [Catalytic fraction]

DescriptionCholinesterase.chloride inhibited/Cholinesterase

Short nameChloride Inhib/CHe CFr SerPl

ComponentCholinesterase.chloride 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.chloride inhibited/Cholinesterase, Blood

Part names

Cholinesterase.chloride 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.