LOINCActiveBoth

LOINC Code 17738-6: Chloral hydrate Ql (U)

17738-6 is a LOINC code used to identify Chloral hydrate Ql (U) 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 Urine.

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 Chloral hydrate. It is commonly used with the system or sample type Urine.

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

  • Chloral hydrate [Presence] in Urine
  • Chloral hydrate
  • Chloraldurat; Chloralix; Dormel; DRUG/TOXICOLOGY; Drugs; Elix-node; Medianox; Noctec; Ordinal; Pediatric chloral elixir; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Trichloroethanol; Trichloroethyl alcohol; Trichloroethylalcohol; UA; UR; Urn; 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 Ql (U)Chloral hydrate [Presence] in UrineChloral Hydrate Ur QlChloral hydrateDRUG/TOXChloral hydrate, UrinePrThr

Frequently asked questions

Code details

Code17738-6
SystemLOINC
Display nameChloral hydrate Ql (U)
DescriptionChloral hydrate
Short nameChloral Hydrate Ur Ql
ComponentChloral hydrate
PropertyPrThr
TimingPt
System (specimen)Urine
ScaleOrd
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.56

Consumer names

Chloral hydrate, Urine

Part names

Chloral hydratePrThrPtUrineOrdPresence or ThresholdPoint in time (spot)

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 17738-6 | HealthAssure