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 95503-9: Substances that you have ever tried and failed to control, cut down or stop using [NIDA]

Name: LOINC Code 95503-9: Substances that you have ever tried and failed to control, cut down or stop using [NIDA]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:25.848Z

95503-9 is a LOINC code used to identify Substances that you have ever tried and failed to control, cut down or stop using [NIDA] 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 Substances that you have ever tried and failed to control, cut down or stop using. It is commonly used with the system or sample type ^Patient.

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 Substances that you have ever tried and failed to control, cut down or stop using. It is commonly used with the system or sample type ^Patient.

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
Method: NIDA

What it does not mean

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

Key facts

Substances that you have ever tried and failed to control, cut down or stop using [NIDA]
Substances that you have ever tried and failed to control, cut down or stop using
Mental health; MentalHealth; Nominal; Point in time; Psych; Psychiatry; Random; Survey; SURVEY.NIDA; Typ

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

Substances that you have ever tried and failed to control, cut down or stop using [NIDA]Substances that you have ever tried and failed to control, cut down or stop usingSURVEY.NIDATypePt^PatientNom

Frequently asked questions

Code details

Code95503-9

SystemLOINC

Display nameSubstances that you have ever tried and failed to control, cut down or stop using [NIDA]

DescriptionSubstances that you have ever tried and failed to control, cut down or stop using

ComponentSubstances that you have ever tried and failed to control, cut down or stop using

PropertyType

TimingPt

System (specimen)^Patient

ScaleNom

MethodNIDA

ClassSURVEY.NIDA

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.69

Last changed2.69

Part names

Substances that you have ever tried and failed to control, cut down or stop usingTypePt^PatientNomNIDAPoint in time (spot)National Institute of Drug Abuse

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.