LOINCBoth

LOINC Code 43549-5: Deprecated Heart Scan perfusion W stress

43549-5 is a LOINC code used to identify Deprecated Heart Scan perfusion W stress 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 Views perfusion^W stress. It is commonly used with the system or sample type Heart.

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 Views perfusion^W stress. It is commonly used with the system or sample type Heart.

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
  • Order vs observation: Both
  • Method: Radnuc

What it does not mean

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

Key facts

  • Deprecated Heart Scan perfusion W stress
  • Views perfusion^W stress
  • Cardiac; Cardio; Cardiology; Exercise; Films; Finding; Findings; Heart Disease; Hrt; Imaging; Myocardial perfusion; Narrative; Nuclear medicine; PF; Point in time; Radiology; Radionuclide scan; Random; Report; RI; Scintigraphy; View; VWS

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 Heart Scan perfusion W stressDeprecated Hrt RI PF W StressViews perfusion^W stressRADFindPtHeart

Frequently asked questions

Code details

Code43549-5
SystemLOINC
Display nameDeprecated Heart Scan perfusion W stress
DescriptionViews perfusion^W stress
Short nameDeprecated Hrt RI PF W Stress
ComponentViews perfusion^W stress
PropertyFind
TimingPt
System (specimen)Heart
ScaleNar
MethodRadnuc
ClassRAD
StatusDEPRECATED
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.36

Part names

Views perfusion^W stressFindPtHeartNarRadnucFindingPoint 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 43549-5 | HealthAssure