LOINCObservation

LOINC Code 18457-2: C14:1 [Mass/Vol]

18457-2 is a LOINC code used to identify C14:1 [Mass/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 Tetradecenoylcarnitine (C14:1). It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Tetradecenoylcarnitine (C14:1). 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: DISCOURAGED
  • Order vs observation: Observation

What it does not mean

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

Key facts

Tetradecenoylcarnitine (C141) [Mass/volume] in Serum or Plasma
Tetradecenoylcarnitine (C141)
C141; Chemistry; i; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tdecenoylcarn

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

C14:1 [Mass/Vol]Tetradecenoylcarnitine (C14:1) [Mass/volume] in Serum or PlasmaTdecenoylcarn SerPl-mCncTetradecenoylcarnitine (C14:1)CHEMC14:1, BloodMCnc

Frequently asked questions

Code details

Code18457-2
SystemLOINC
Display nameC14:1 [Mass/Vol]
DescriptionTetradecenoylcarnitine (C14:1)
Short nameTdecenoylcarn SerPl-mCnc
ComponentTetradecenoylcarnitine (C14:1)
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
StatusDISCOURAGED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.73

Consumer names

C14:1, Blood

Part names

Tetradecenoylcarnitine (C14:1)MCncPtSer/PlasQnMass 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.

LOINC Code 18457-2 | HealthAssure