LOINCActiveObservation

LOINC Code 92515-6: Number of cigarettes smoked in Lifetime

92515-6 is a LOINC code used to identify Number of cigarettes smoked in Lifetime 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 Number of cigarettes smoked. 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 Number of cigarettes smoked. 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Number of cigarettes smoked in Lifetime
  • Number of cigarettes smoked
  • The number of cigarettes smoked over the patient's lifetime. A pack usually has 20 cigarettes in it.
  • # cigarettes smoked; Cnt; Count; H+P; H+P.HX; No; Num; Number; P prime; QNT; Quan; Quant; Quantitative

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

Number of cigarettes smoked in Lifetime# cigarettes smoked LifetimeNumber of cigarettes smokedH&P.HXNumLifetime^Patient

Frequently asked questions

Code details

Code92515-6
SystemLOINC
Display nameNumber of cigarettes smoked in Lifetime
DescriptionNumber of cigarettes smoked
Short name# cigarettes smoked Lifetime
ComponentNumber of cigarettes smoked
PropertyNum
TimingLifetime
System (specimen)^Patient
ScaleQn
ClassH&P.HX
Example units#
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.66
Last changed2.66

Part names

Number of cigarettes smokedNumLifetime^PatientQnNumber (count)

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.