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 58480-5: Fatty acids.nonesterified 6th specimen fasting [Moles/Vol]

Name: LOINC Code 58480-5: Fatty acids.nonesterified 6th specimen fasting [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:39.275Z

58480-5 is a LOINC code used to identify Fatty acids.nonesterified 6th specimen fasting [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.nonesterified^6th specimen post CFst. 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 Fatty acids.nonesterified^6th specimen post CFst. 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

Fatty acids.nonesterified [Moles/volume] in Serum or Plasma --6th specimen fasting
Fatty acids.nonesterified^6th specimen post CFst
Acd; Acid; After; Aliphatic carboxylate C10-C26; Calorie Fast; CHEMISTRY.CHALLENGE TESTING; Fast; Fasting; Fatty acid; FFA; Free Fatty Acids; Level; Lipid; NEFA; p fast; PC; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; sp6; sp6 p fast; Spec; SR; 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

Fatty acids.nonesterified 6th specimen fasting [Moles/Vol]Fatty acids.nonesterified [Moles/volume] in Serum or Plasma --6th specimen fastingNEFA sp6 p fast SerPl-sCncFatty acids.nonesterified^6th specimen post CFstCHALFatty acids.nonesterified 6th specimen fasting, BloodSCnc

Frequently asked questions

Code details

Code58480-5

SystemLOINC

Display nameFatty acids.nonesterified 6th specimen fasting [Moles/Vol]

DescriptionFatty acids.nonesterified^6th specimen post CFst

Short nameNEFA sp6 p fast SerPl-sCnc

ComponentFatty acids.nonesterified^6th specimen post CFst

PropertySCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsmmol/L; mEq/L

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.32

Last changed2.70

Consumer names

Fatty acids.nonesterified 6th specimen fasting, Blood

Part names

Fatty acids.nonesterified^6th specimen post CFstSCncPtSer/PlasQnSubstance ConcentrationPoint 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.