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.

LOINCActiveBoth

LOINC Code 93765-6: Trimethylamine N-oxide (S) [Molar amount]

Name: LOINC Code 93765-6: Trimethylamine N-oxide (S) [Molar amount]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:23.054Z

93765-6 is a LOINC code used to identify Trimethylamine N-oxide (S) [Molar amount] 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 Trimethylamine N-oxide. It is commonly used with the system or sample type Ser.

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 Trimethylamine N-oxide. It is commonly used with the system or sample type Ser.

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

Trimethylamine N-oxide [Molar amount] in Serum
Trimethylamine N-oxide
Chemistry; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; Substance amount; TMA; TMAO; Trimet-amine

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

Trimethylamine N-oxide (S) [Molar amount]Trimethylamine N-oxide [Molar amount] in SerumTMAO sub Ser QnTrimethylamine N-oxideCHEMTrimethylamine n-oxide, BloodSub

Frequently asked questions

Code details

Code93765-6

SystemLOINC

Display nameTrimethylamine N-oxide (S) [Molar amount]

DescriptionTrimethylamine N-oxide

Short nameTMAO sub Ser Qn

ComponentTrimethylamine N-oxide

PropertySub

TimingPt

System (specimen)Ser

ScaleQn

ClassCHEM

Example unitsumol

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.67

Last changed2.67

Consumer names

Trimethylamine n-oxide, Blood

Part names

Trimethylamine N-oxideSubPtSerQnSubstance AmountPoint in time (spot)Serum

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.