LOINCActiveBoth

LOINC Code 88994-9: Arachidonate (C20:4w6)/Fatty acids.C14-C24 [Molar fraction]

88994-9 is a LOINC code used to identify Arachidonate (C20:4w6)/Fatty acids.C14-C24 [Molar 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 Arachidonate/Fatty acids.C14-C24. 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 Arachidonate/Fatty acids.C14-C24. 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: Both

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

Arachidonate (C204w6)/Fatty acids.C14-C24 in Serum or Plasma
Arachidonate/Fatty acids.C14-C24
5,8,11,14 Eicosatetraenoic acid; AA; Acd; Acid; Arachidonic acid; Arch acid; C204w6; Chemistry; Eicosatetraenoate; Fatty acid; Lipid; Percent; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance fraction

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

Arachidonate (C20:4w6)/Fatty acids.C14-C24 [Molar fraction]Arachidonate (C20:4w6)/Fatty acids.C14-C24 in Serum or PlasmaAA/Fatty acids.C14-C24 SFr SerPlArachidonate/Fatty acids.C14-C24CHEMArachidonate (C20:4w6)/Fatty Acids.C14-C24, BloodSFr

Frequently asked questions

Code details

Code88994-9
SystemLOINC
Display nameArachidonate (C20:4w6)/Fatty acids.C14-C24 [Molar fraction]
DescriptionArachidonate/Fatty acids.C14-C24
Short nameAA/Fatty acids.C14-C24 SFr SerPl
ComponentArachidonate/Fatty acids.C14-C24
PropertySFr
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.73

Consumer names

Arachidonate (C20:4w6)/Fatty Acids.C14-C24, Blood

Part names

Arachidonate/Fatty acids.C14-C24SFrPtSer/PlasQnSubstance 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.