LOINC

LOINC Code 62504-6: Deprecated PhenX measure - substance - lifetime use

62504-6 is a LOINC code used to identify Deprecated PhenX measure - substance - lifetime use 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 measure - substance - lifetime use. 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 measure - substance - lifetime use. 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: DEPRECATED
  • Method: PhenX

What it does not mean

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

Key facts

  • Deprecated PhenX measure - substance - lifetime use
  • PhenX measure - substance - lifetime use
  • Question asking the respondent if s/he has ever used a drug during his or her entire life. This measure can be used to assess the participant's lifetime use of any drug. The question is often used as a prelude to more detailed questions about alcohol use to screen out individuals who have ever used these substances.
  • Measure - subst lifetime use; Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; Subs

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

Deprecated PhenX measure - substance - lifetime usePhenX measure - substance - lifetime usePANEL.PHENX-Pt^PatientPhenX

Frequently asked questions

Code details

Code62504-6
SystemLOINC
Display nameDeprecated PhenX measure - substance - lifetime use
DescriptionPhenX measure - substance - lifetime use
ComponentPhenX measure - substance - lifetime use
Property-
TimingPt
System (specimen)^Patient
Scale-
MethodPhenX
ClassPANEL.PHENX
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.46

Part names

PhenX measure - substance - lifetime use-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.

LOINC Code 62504-6 | HealthAssure