LOINCActiveBoth

LOINC Code 74164-5: History of Usual occupation and industry Narrative

74164-5 is a LOINC code used to identify History of Usual occupation and industry Narrative 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 Usual occupation and industry. 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 Usual occupation and industry. 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: Both

What it does not mean

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

Key facts

  • History of Usual occupation and industry Narrative
  • Usual occupation and industry
  • Collection of current and historical data related to an individual's usual occupation and industry.
  • H+P; H+P.HX; History; Job; Narrative; occupation+industry; P prime; Point in time; Random; Report; Work

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

History of Usual occupation and industry NarrativeHx of occupation+industryUsual occupation and industryH&P.HXHxPt^Patient

Frequently asked questions

Code details

Code74164-5
SystemLOINC
Display nameHistory of Usual occupation and industry Narrative
DescriptionUsual occupation and industry
Short nameHx of occupation+industry
ComponentUsual occupation and industry
PropertyHx
TimingPt
System (specimen)^Patient
ScaleNar
ClassH&P.HX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.46
Last changed2.56

Part names

Usual occupation and industryHxPt^PatientNarHistoryPoint 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.