What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 105977-3: Zolpidem phenyl-4-carboxylate Ql (U)

Name: LOINC Code 105977-3: Zolpidem phenyl-4-carboxylate Ql (U)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:19.666Z

105977-3 is a LOINC code used to identify Zolpidem phenyl-4-carboxylate 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 Zolpidem phenyl-4-carboxylate. It is commonly used with the system or sample type Urine.

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 Zolpidem phenyl-4-carboxylate. 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: Observation

What it does not mean

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

Key facts

Zolpidem phenyl-4-carboxylate [Presence] in Urine
Zolpidem phenyl-4-carboxylate
Adormix; Ambien; Ambien CR; Damixan; DRUG/TOXICOLOGY; Drugs; Edluar; Hypnogen; Ivedal; Lioran; Myslee; Nasen; Nytamel; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Sanval; Screen; Somidem; Stilnoct; Stilnox; Stilnox CR; Sucedal; UA; UR; Urn; Zoldem; Zolpihexal; Zolpimist

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

Zolpidem phenyl-4-carboxylate Ql (U)Zolpidem phenyl-4-carboxylate [Presence] in UrineZolpidem phenyl-4-carb Ur QlZolpidem phenyl-4-carboxylateDRUG/TOXZolpidem phenyl-4-carboxylate, UrinePrThr

Frequently asked questions

Code details

Code105977-3

SystemLOINC

Display nameZolpidem phenyl-4-carboxylate Ql (U)

DescriptionZolpidem phenyl-4-carboxylate

Short nameZolpidem phenyl-4-carb Ur Ql

ComponentZolpidem phenyl-4-carboxylate

PropertyPrThr

TimingPt

System (specimen)Urine

ScaleOrd

ClassDRUG/TOX

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.78

Last changed2.79

Consumer names

Zolpidem phenyl-4-carboxylate, Urine

Part names

Zolpidem phenyl-4-carboxylatePrThrPtUrineOrdPresence 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.