LOINC

LOINC Code 17268-4: Methsuximide+Desmethylmethsuximide [Mass/Vol]

17268-4 is a LOINC code used to identify Methsuximide+Desmethylmethsuximide [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 Methsuximide+Desmethylmethsuximide. 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 Methsuximide+Desmethylmethsuximide. 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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Methsuximide+Normethsuximide [Mass/volume] in Serum or Plasma
  • Methsuximide+Desmethylmethsuximide
  • Celontin; DRUG/TOXICOLOGY; Drugs; Level; Mass concentration; Mesuximide; Petinutin; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Methsuximide+Desmethylmethsuximide [Mass/Vol]Deprecated Methsuximide+Normethsuximide [Mass/volume] in Serum or PlasmaDeprecated Methsuximide+Desmethyl SerPlMethsuximide+DesmethylmethsuximideDRUG/TOXMethsuximide+Desmethylmethsuximide, BloodMCnc

Frequently asked questions

Code details

Code17268-4
SystemLOINC
Display nameMethsuximide+Desmethylmethsuximide [Mass/Vol]
DescriptionMethsuximide+Desmethylmethsuximide
Short nameDeprecated Methsuximide+Desmethyl SerPl
ComponentMethsuximide+Desmethylmethsuximide
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassDRUG/TOX
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.36

Consumer names

Methsuximide+Desmethylmethsuximide, Blood

Part names

Methsuximide+DesmethylmethsuximideMCncPtSer/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 17268-4 | HealthAssure