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 99618-1: Monounsaturated fatty acids (RBC.lysate) [Moles/Vol]

Name: LOINC Code 99618-1: Monounsaturated fatty acids (RBC.lysate) [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:33.065Z

99618-1 is a LOINC code used to identify Monounsaturated fatty acids (RBC.lysate) [Moles/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 Fatty acids.monounsaturated. It is commonly used with the system or sample type RBC.lysate.

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 Fatty acids.monounsaturated. It is commonly used with the system or sample type RBC.lysate.

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

Monounsaturated fatty acids [Moles/volume] in RBC.lysate
Fatty acids.monounsaturated
Acd; Acid; Chemistry; Erythrocytes; Fatty acid; Level; Lipid; Monounsat FA; Point in time; QNT; Quan; Quant; Quantitative; Random; Red blood cells; Red blood corpusles; Substance concentration

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

Monounsaturated fatty acids (RBC.lysate) [Moles/Vol]Monounsaturated fatty acids [Moles/volume] in RBC.lysateMonounsat FA RBC.lysate-sCncFatty acids.monounsaturatedCHEMMonounsaturated fatty acids, RBC.lysateSCnc

Frequently asked questions

Code details

Code99618-1

SystemLOINC

Display nameMonounsaturated fatty acids (RBC.lysate) [Moles/Vol]

DescriptionFatty acids.monounsaturated

Short nameMonounsat FA RBC.lysate-sCnc

ComponentFatty acids.monounsaturated

PropertySCnc

TimingPt

System (specimen)RBC.lysate

ScaleQn

ClassCHEM

Example unitsmmol/L

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.72

Last changed2.72

Consumer names

Monounsaturated fatty acids, RBC.lysate

Part names

Fatty acids.monounsaturatedSCncPtRBC.lysateQnMonounsaturated fatty acidsSubstance ConcentrationPoint in time (spot)

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.