LOINC

LOINC Code 20531-0: Hydroxyalprazolam Confirm (U) [Mass/Vol]

20531-0 is a LOINC code used to identify Hydroxyalprazolam Confirm (U) [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 Hydroxyalprazolam. 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 Hydroxyalprazolam. 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: DEPRECATED
  • Method: Confirm

What it does not mean

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

Key facts

  • Deprecated Hydroxyalprazolam [Mass/volume] in Urine by Confirm method
  • Hydroxyalprazolam
  • Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; DRUG/TOXICOLOGY; Drugs; GCMS; Hydroxy alprazolam; Hydroxyalpraz; LC/MS/MS; Level; Mass concentration; OH-Alpraz; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; UR; Urn

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

Hydroxyalprazolam Confirm (U) [Mass/Vol]Deprecated Hydroxyalprazolam [Mass/volume] in Urine by Confirm methodDeprecated OH-Alpraz Ur Cfm-mCncHydroxyalprazolamDRUG/TOXHydroxyalprazolam, UrineMCnc

Frequently asked questions

Code details

Code20531-0
SystemLOINC
Display nameHydroxyalprazolam Confirm (U) [Mass/Vol]
DescriptionHydroxyalprazolam
Short nameDeprecated OH-Alpraz Ur Cfm-mCnc
ComponentHydroxyalprazolam
PropertyMCnc
TimingPt
System (specimen)Urine
ScaleQn
MethodConfirm
ClassDRUG/TOX
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Hydroxyalprazolam, Urine

Part names

HydroxyalprazolamMCncPtUrineQnConfirmMass ConcentrationPoint 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 20531-0 | HealthAssure