LOINCActiveBoth

LOINC Code 105934-4: N-Desmethyl regorafenib [Mass/Vol]

105934-4 is a LOINC code used to identify N-Desmethyl regorafenib [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 Regorafenib metabolite M4. 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 Regorafenib metabolite M4. 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

  • N-Desmethyl regorafenib [Mass/volume] in Serum or Plasma
  • Regorafenib metabolite M4
  • DRUG/TOXICOLOGY; Drugs; Level; Mass concentration; Metab; Metabolites; Metb; N-Desmethyl regorafenib; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Regorafenibum; 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

N-Desmethyl regorafenib [Mass/Vol]N-Desmethyl regorafenib [Mass/volume] in Serum or PlasmaN-Desmethyl regorafenib SerPl-mCncRegorafenib metabolite M4DRUG/TOXN-Desmethyl regorafenib, BloodMCnc

Frequently asked questions

Code details

Code105934-4
SystemLOINC
Display nameN-Desmethyl regorafenib [Mass/Vol]
DescriptionRegorafenib metabolite M4
Short nameN-Desmethyl regorafenib SerPl-mCnc
ComponentRegorafenib metabolite M4
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassDRUG/TOX
Example unitsmg/dL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.78
Last changed2.78

Consumer names

N-Desmethyl regorafenib, Blood

Part names

Regorafenib metabolite M4MCncPtSer/PlasQnN-Desmethyl regorafenibMass 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 105934-4 | HealthAssure