LOINCActiveObservation

LOINC Code 46264-8: History of medical device use

46264-8 is a LOINC code used to identify History of medical device 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 History of medical device use. It is commonly used with the system or sample type {Setting}.

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 History of medical device use. It is commonly used with the system or sample type {Setting}.

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
  • Method: {Role}

What it does not mean

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

Key facts

  • History of medical device use
  • History of medical device (medical equipment) use defines a patient's implanted and external medical devices and equipment that their health status depends on, as well as any pertinent equipment or device history. This term is also used to itemize any pertinent current or historical durable medical equipment (DME) used to help maintain the patient's health status. All pertinent equipment relevant to the diagnosis, care, and treatment of a patient should be included.
  • DOC.MISC; Document; Finding; Findings; H/O; Hx; Medical device use Hx; MISC; Point in time; 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

History of medical device useHx medical device useDOC.MISCFindPt{Setting}Doc

Frequently asked questions

Code details

Code46264-8
SystemLOINC
Display nameHistory of medical device use
Short nameHx medical device use
ComponentHistory of medical device use
PropertyFind
TimingPt
System (specimen){Setting}
ScaleDoc
Method{Role}
ClassDOC.MISC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.67

Part names

History of medical device useFindPt{Setting}Doc{Role}FindingPoint in time (spot)Role-unspecified

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 46264-8 | HealthAssure