LOINCActiveObservation

LOINC Code 29461-1: Ventricular septal Defect.velocity.systole.maximum by US.doppler

29461-1 is a LOINC code used to identify Ventricular septal Defect.velocity.systole.maximum by US.doppler 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 Defect.velocity.systole.max. It is commonly used with the system or sample type Heart.ventricle.septum.

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 Defect.velocity.systole.max. It is commonly used with the system or sample type Heart.ventricle.septum.

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: US.doppler

What it does not mean

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

Key facts

  • Ventricular septal Defect.velocity.systole.maximum by US.doppler
  • Defect.velocity.systole.max
  • CARD.US; Cardiac; Cardio; Cardiology; Defect.vel.sys; Defect.vel.sys.max; DOP; DUPLEX; Echography; Heart Disease; Hrt; Hrt ventr; Largest; Max V; Maximal; Maximum; Peak; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Sys; Sys.max; Syst; ULS; Ultrasound; V max; V sys; Vel; Velocity; Ventricular; Vmax; VS; VSD; VSD V max

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

Ventricular septal Defect.velocity.systole.maximum by US.dopplerVS Defect.vel.sys.max DOPDefect.velocity.systole.maxCARD.USVelPtHeart.ventricle.septum

Frequently asked questions

Code details

Code29461-1
SystemLOINC
Display nameVentricular septal Defect.velocity.systole.maximum by US.doppler
DescriptionDefect.velocity.systole.max
Short nameVS Defect.vel.sys.max DOP
ComponentDefect.velocity.systole.max
PropertyVel
TimingPt
System (specimen)Heart.ventricle.septum
ScaleQn
MethodUS.doppler
ClassCARD.US
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.03
Last changed2.29

Part names

Defect.velocity.systole.maxVelPtHeart.ventricle.septumQnUS.dopplerVelocity (distance/time)Point in time (spot)Heart ventricle septumUltrasound.doppler

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 29461-1 | HealthAssure