LOINC

LOINC Code 24453-3: Carnitine (Tiss) [Moles/Mass]

24453-3 is a LOINC code used to identify Carnitine (Tiss) [Moles/Mass] 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. It is commonly used with the system or sample type Tiss.

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. It is commonly used with the system or sample type Tiss.

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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Carnitine (C0) [Molecules/mass] in Tissue
  • Carnitine
  • Carnitine.total; Chemistry; Point in time; Random; Substance content; Tissue; Tissue, unspecified

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

Carnitine (Tiss) [Moles/Mass]Deprecated Carnitine (C0) [Molecules/mass] in TissueDeprecated Carnitine TissCarnitineCHEMCarnitine, TissueSCnt

Frequently asked questions

Code details

Code24453-3
SystemLOINC
Display nameCarnitine (Tiss) [Moles/Mass]
DescriptionCarnitine
Short nameDeprecated Carnitine Tiss
ComponentCarnitine
PropertySCnt
TimingPt
System (specimen)Tiss
Scale-
ClassCHEM
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0o
Last changed2.66

Consumer names

Carnitine, Tissue

Part names

CarnitineSCntPtTiss-Substance ContentPoint in time (spot)Tissue and Smears

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 24453-3 | HealthAssure