LOINC

LOINC Code 9504-2: Chloral hydrate [Mass/Vol]

9504-2 is a LOINC code used to identify Chloral hydrate [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 Chloral hydrate. 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 Chloral hydrate. 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 Chloral hydrate [Mass/volume] in Serum or Plasma
  • Chloral hydrate
  • Chloraldurat; Chloralix; Dormel; DRUG/TOXICOLOGY; Drugs; Elix-node; Level; Mass concentration; Medianox; Noctec; Pediatric chloral elixir; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Trichloroethanol; Trichloroethyl alcohol; Trichloroethylalcohol; Welldorm

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

Chloral hydrate [Mass/Vol]Deprecated Chloral hydrate [Mass/volume] in Serum or PlasmaDeprecated Chloral Hydrate SerPl-mCncChloral hydrateDRUG/TOXChloral hydrate, BloodMCnc

Frequently asked questions

Code details

Code9504-2
SystemLOINC
Display nameChloral hydrate [Mass/Vol]
DescriptionChloral hydrate
Short nameDeprecated Chloral Hydrate SerPl-mCnc
ComponentChloral hydrate
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassDRUG/TOX
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Chloral hydrate, Blood

Part names

Chloral hydrateMCncPtSer/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 9504-2 | HealthAssure