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.

LOINCActiveBoth

LOINC Code 20554-2: Para hydroxyamphetamine Confirm (U) [Mass/Vol]

Name: LOINC Code 20554-2: Para hydroxyamphetamine Confirm (U) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

20554-2 is a LOINC code used to identify Para hydroxyamphetamine 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 Para hydroxyamphetamine. 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 Para hydroxyamphetamine. 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
Method: Confirm

What it does not mean

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

Key facts

Para hydroxyamphetamine [Mass/volume] in Urine by Confirmatory method
Para hydroxyamphetamine
Addiction; Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; GCMS; Illicit; LC/MS/MS; Level; Mass concentration; Methylthyramine; Para hydroxy amphetamine; P-OH-Amphet; Point in time; PotentialForAbuse; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Para hydroxyamphetamine Confirm (U) [Mass/Vol] (20554-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Para hydroxyamphetamine Confirm (U) [Mass/Vol]Para hydroxyamphetamine [Mass/volume] in Urine by Confirmatory methodP-OH-Amphet Ur Cfm-mCncPara hydroxyamphetamineDRUG/TOXPara hydroxyamphetamine, UrineMCnc

Frequently asked questions

Code details

Code20554-2

SystemLOINC

Display namePara hydroxyamphetamine Confirm (U) [Mass/Vol]

DescriptionPara hydroxyamphetamine

Short nameP-OH-Amphet Ur Cfm-mCnc

ComponentPara hydroxyamphetamine

PropertyMCnc

TimingPt

System (specimen)Urine

ScaleQn

MethodConfirm

ClassDRUG/TOX

Example unitsng/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.42

Consumer names

Para hydroxyamphetamine, Urine

Part names

Para hydroxyamphetamineMCncPtUrineQnConfirmMass 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.