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 67744-3: Approximately how many cigarettes did you smoke on average [PhenX]

Name: LOINC Code 67744-3: Approximately how many cigarettes did you smoke on average [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:46.823Z

67744-3 is a LOINC code used to identify Approximately how many cigarettes did you smoke on average [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 Approximately how many cigarettes did you smoke on average. 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 Approximately how many cigarettes did you smoke on average. 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

Approximately how many cigarettes did you smoke on average [PhenX]
Approximately how many cigarettes did you smoke on average
Average cigarettes smoked; Count/time; nRate; Number rate; Number Rate = Count/Time; 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

Approximately how many cigarettes did you smoke on average [PhenX]Average cigarettes smoked PhenXApproximately how many cigarettes did you smoke on averagePHENXNRatPt^Patient

Frequently asked questions

Code details

Code67744-3

SystemLOINC

Display nameApproximately how many cigarettes did you smoke on average [PhenX]

DescriptionApproximately how many cigarettes did you smoke on average

Short nameAverage cigarettes smoked PhenX

ComponentApproximately how many cigarettes did you smoke on average

PropertyNRat

TimingPt

System (specimen)^Patient

ScaleOrd

MethodPhenX

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.38

Last changed2.65

Part names

Approximately how many cigarettes did you smoke on averageNRatPt^PatientOrdPhenXNumber RatePoint 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.