LOINC

LOINC Code 62500-4: PhenX - tobacco - age of offset use - adolescent protocol 030901

62500-4 is a LOINC code used to identify PhenX - tobacco - age of offset use - adolescent protocol 030901 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 PhenX - tobacco - age of offset use - adolescent protocol 030901. 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 PhenX - tobacco - age of offset use - adolescent protocol 030901. 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: DISCOURAGED
  • Panel type: Panel
  • Method: PhenX

What it does not mean

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

Key facts

  • PhenX - tobacco - age of offset use - adolescent protocol 030901
  • Measurement to ascertain when the respondent quit smoking. Response is used to calculate duration of use and pack-years measures and allows one to distinguish recent quitters from long-time quitters. Respondent is asked how long it has been since he or she smoked and how old he or she was when he or she last smoked only if he or she answered "yes" to the first question of the Tobacco - Smoking Status (Adolescent Protocol).
  • Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; Tobac age offset adoles proto

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

PhenX - tobacco - age of offset use - adolescent protocol 030901Tobac age offset adoles protoPANEL.PHENX-Pt^PatientPhenX

Frequently asked questions

Code details

Code62500-4
SystemLOINC
Display namePhenX - tobacco - age of offset use - adolescent protocol 030901
Short nameTobac age offset adoles proto
ComponentPhenX - tobacco - age of offset use - adolescent protocol 030901
Property-
TimingPt
System (specimen)^Patient
Scale-
MethodPhenX
ClassPANEL.PHENX
StatusDISCOURAGED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.81

Part names

PhenX - tobacco - age of offset use - adolescent protocol 030901-Pt^PatientPhenXPoint 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.