LOINCActiveBoth

LOINC Code 75101-6: Fatty acids.very long chain C22:0 (Docosanoate) (RBC) [Entitic substance]

75101-6 is a LOINC code used to identify Fatty acids.very long chain C22:0 (Docosanoate) (RBC) [Entitic substance] 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.very long chain.C22:0. It is commonly used with the system or sample type RBC.

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.very long chain.C22:0. It is commonly used with the system or sample type RBC.

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

Fatty acids.very long chain C220 (Docosanoate) [Entitic substance] in Red Blood Cells
Fatty acids.very long chain.C220
Acd; Acid; Aliphatic carboxylate; Behenate; Behenic acid; C220; Chains; Chemistry; Chn; Docosanoate; Docosanoic acid; Entitic substance; Erythrocytes; Fatty acid; Lipid; Point in time; QNT; Quan; Quant; Quantitative; Random; Red blood cells; Red blood corpusles; VLC; VLCF; VLCFA; VLCFA C22:0

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

Fatty acids.very long chain C22:0 (Docosanoate) (RBC) [Entitic substance]Fatty acids.very long chain C22:0 (Docosanoate) [Entitic substance] in Red Blood CellsVLCFA C22:0 EntSub RBCFatty acids.very long chain.C22:0CHEMFatty Acids.very Long Chain C22:0 (Docosanoate), Red blood cellsEntSub

Frequently asked questions

Code details

Code75101-6
SystemLOINC
Display nameFatty acids.very long chain C22:0 (Docosanoate) (RBC) [Entitic substance]
DescriptionFatty acids.very long chain.C22:0
Short nameVLCFA C22:0 EntSub RBC
ComponentFatty acids.very long chain.C22:0
PropertyEntSub
TimingPt
System (specimen)RBC
ScaleQn
ClassCHEM
Example unitsumol/10*6 RBC
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.52

Consumer names

Fatty Acids.very Long Chain C22:0 (Docosanoate), Red blood cells

Part names

Fatty acids.very long chain.C22:0EntSubPtRBCQnFatty acids.very long chain C22:0 (Docosanoate)Entitic substancePoint in time (spot)Red Blood Cells

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.