What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 79944-5: Aortic valve Regurgitant jet width/Left ventricular outflow tract width by US.2D+doppler

Name: LOINC Code 79944-5: Aortic valve Regurgitant jet width/Left ventricular outflow tract width by US.2D+doppler
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.838Z

79944-5 is a LOINC code used to identify Aortic valve Regurgitant jet width/Left ventricular outflow tract width by US.2D+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 Regurgitant jet width/Left ventricular outflow tract width. It is commonly used with the system or sample type Aortic valve.

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 Regurgitant jet width/Left ventricular outflow tract width. It is commonly used with the system or sample type Aortic valve.

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.2D+doppler

What it does not mean

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

Key facts

Aortic valve Regurgitant jet width/Left ventricular outflow tract width by US.2D+doppler
Regurgitant jet width/Left ventricular outflow tract width
2D US; AO; AoV; AV; CARD.US; CARD.US.DICOM; Cardio; Cardiology; Echography; Heart Disease; L; Length Fraction; LT; LVOT width; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Regurg jet width; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Ultrasound - 2-dimensional

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

Aortic valve Regurgitant jet width/Left ventricular outflow tract width by US.2D+dopplerAV Regurg jet width/LVOT width US.2D+DOPRegurgitant jet width/Left ventricular outflow tract widthCARD.US.DICOMLenFrPtAortic valve

Frequently asked questions

Code details

Code79944-5

SystemLOINC

Display nameAortic valve Regurgitant jet width/Left ventricular outflow tract width by US.2D+doppler

DescriptionRegurgitant jet width/Left ventricular outflow tract width

Short nameAV Regurg jet width/LVOT width US.2D+DOP

ComponentRegurgitant jet width/Left ventricular outflow tract width

PropertyLenFr

TimingPt

System (specimen)Aortic valve

ScaleQn

MethodUS.2D+doppler

ClassCARD.US.DICOM

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Part names

Regurgitant jet width/Left ventricular outflow tract widthLenFrPtAortic valveQnUS.2D+dopplerLength fractionPoint 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.