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 95439-6: During the past 3 months, how often have you used other substances [NIDA]

Name: LOINC Code 95439-6: During the past 3 months, how often have you used other substances [NIDA]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:25.848Z

95439-6 is a LOINC code used to identify During the past 3 months, how often have you used other substances [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 During the past 3Mo, how often have you used other substances. 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 During the past 3Mo, how often have you used other substances. 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

During the past 3 months, how often have you used other substances [NIDA]
During the past 3Mo, how often have you used other substances
3 months; Finding; Findings; Last; Mental health; MentalHealth; Ordinal; Othr; Psych; Psychiatry; Ql; Qual; Qualitative; Screen; Survey; SURVEY.NIDA

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

During the past 3 months, how often have you used other substances [NIDA]During the past 3Mo, how often have you used other substancesSURVEY.NIDAFind3Mo^PatientOrd

Frequently asked questions

Code details

Code95439-6

SystemLOINC

Display nameDuring the past 3 months, how often have you used other substances [NIDA]

DescriptionDuring the past 3Mo, how often have you used other substances

ComponentDuring the past 3Mo, how often have you used other substances

PropertyFind

Timing3Mo

System (specimen)^Patient

ScaleOrd

MethodNIDA

ClassSURVEY.NIDA

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.69

Last changed2.69

Part names

During the past 3Mo, how often have you used other substancesFind3Mo^PatientOrdNIDADuring the past 3 months, how often have you used other substancesFinding3 monthsNational 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.