LOINCActiveBoth

LOINC Code 59206-3: C0/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18) [Molar ratio]

59206-3 is a LOINC code used to identify C0/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18) [Molar ratio] 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 Carnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18). 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 Carnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18). 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

  • Carnitine free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18) [Molar ratio] in Serum or Plasma
  • Carnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18)
  • C0; C16; C16+C18; C18; Carnitine Free; Carnitine.total; Chemistry; FC; FR; Hexadecanoylcarnitine; Non-protein bound; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Scrto; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Steroylcarnitine; Substance concentration ratio; Substance ratio

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

C0/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18) [Molar ratio]Carnitine free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18) [Molar ratio] in Serum or PlasmaCarnitine Free/C16+C18 SerPl-sRtoCarnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18)CHEMC0/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18), BloodSRto

Frequently asked questions

Code details

Code59206-3
SystemLOINC
Display nameC0/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18) [Molar ratio]
DescriptionCarnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18)
Short nameCarnitine Free/C16+C18 SerPl-sRto
ComponentCarnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18)
PropertySRto
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitsumol/umol
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.70

Consumer names

C0/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18), Blood

Part names

Carnitine.free (C0)/Palmitoylcarnitine (C16)+Stearoylcarnitine (C18)SRtoPtSer/PlasQnSubstance RatioPoint 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.