LOINCActiveBoth

LOINC Code 74965-5: Haloperidol trough [Mass/Vol]

74965-5 is a LOINC code used to identify Haloperidol trough [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 Haloperidol^trough. 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 Haloperidol^trough. 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

  • Haloperidol [Mass/volume] in Serum or Plasma --trough
  • Haloperidol^trough
  • DRUG/TOXICOLOGY; Drugs; Haldol; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; Pre; Predose; Pre-dose; QNT; Quan; Quant; Quantitative; Random; Serenace; 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

Haloperidol trough [Mass/Vol]Haloperidol [Mass/volume] in Serum or Plasma --troughHaloperidol Trough SerPl-mCncHaloperidol^troughDRUG/TOXHaloperidol trough, BloodMCnc

Frequently asked questions

Code details

Code74965-5
SystemLOINC
Display nameHaloperidol trough [Mass/Vol]
DescriptionHaloperidol^trough
Short nameHaloperidol Trough SerPl-mCnc
ComponentHaloperidol^trough
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassDRUG/TOX
Example unitsug/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.48

Consumer names

Haloperidol trough, Blood

Part names

Haloperidol^troughMCncPtSer/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 74965-5 | HealthAssure