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 63872-6: At the present time, how many hours per day are you exposed to the smoke of others [PhenX]

Name: LOINC Code 63872-6: At the present time, how many hours per day are you exposed to the smoke of others [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:43.947Z

63872-6 is a LOINC code used to identify At the present time, how many hours per day are you exposed to the smoke of others [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 At the present time, how many H per D are you exposed to the smoke of others. 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 At the present time, how many H per D are you exposed to the smoke of others. 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

At the present time, how many hours per day are you exposed to the smoke of others [PhenX]
At the present time, how many H per D are you exposed to the smoke of others
Dextro; Exposure smoke present_Hs; Point in time; QNT; Quan; Quant; Quantitative; Random

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

At the present time, how many hours per day are you exposed to the smoke of others [PhenX]Exposure smoke present_Hs PhenXAt the present time, how many H per D are you exposed to the smoke of othersPHENXTimePt^Patient

Frequently asked questions

Code details

Code63872-6

SystemLOINC

Display nameAt the present time, how many hours per day are you exposed to the smoke of others [PhenX]

DescriptionAt the present time, how many H per D are you exposed to the smoke of others

Short nameExposure smoke present_Hs PhenX

ComponentAt the present time, how many H per D are you exposed to the smoke of others

PropertyTime

TimingPt

System (specimen)^Patient

ScaleQn

MethodPhenX

ClassPHENX

Example unitshours/days

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

At the present time, how many H per D are you exposed to the smoke of othersTimePt^PatientQnPhenXAt the present time, how many hours per day are you exposed to the smoke of othersTime (e.g. seconds)Point 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.