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.

LOINC

LOINC Code 64005-2: In your entire life, have you ever smoked or used this type of tobacco [PhenX]

Name: LOINC Code 64005-2: In your entire life, have you ever smoked or used this type of tobacco [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:43.947Z

64005-2 is a LOINC code used to identify In your entire life, have you ever smoked or used this type of tobacco [PhenX] 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 In your entire life, have you ever smoked or used this type of tobacco. 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 In your entire life, have you ever smoked or used this type of tobacco. 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: TRIAL
Method: PhenX

What it does not mean

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

Key facts

In your entire life, have you ever smoked or used this type of tobacco [PhenX]
In your entire life, have you ever smoked or used this type of tobacco
Entire life tobacco type; Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen

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

In your entire life, have you ever smoked or used this type of tobacco [PhenX]Entire life tobacco type PhenXIn your entire life, have you ever smoked or used this type of tobaccoPHENXFindPt^Patient

Frequently asked questions

Code details

Code64005-2

SystemLOINC

Display nameIn your entire life, have you ever smoked or used this type of tobacco [PhenX]

DescriptionIn your entire life, have you ever smoked or used this type of tobacco

Short nameEntire life tobacco type PhenX

ComponentIn your entire life, have you ever smoked or used this type of tobacco

PropertyFind

TimingPt

System (specimen)^Patient

ScaleOrd

MethodPhenX

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.67

Part names

In your entire life, have you ever smoked or used this type of tobaccoFindPt^PatientOrdPhenXFindingPoint 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.