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 29470-2: Mitral valve annulus Blood velocity-time integral by US.calculated

Name: LOINC Code 29470-2: Mitral valve annulus Blood velocity-time integral by US.calculated
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:15.474Z

29470-2 is a LOINC code used to identify Mitral valve annulus Blood velocity-time integral by US.calculated 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 Blood velocity-time integral. It is commonly used with the system or sample type Mitral valve.annulus.

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 Blood velocity-time integral. It is commonly used with the system or sample type Mitral valve.annulus.

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.calculated

What it does not mean

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

Key facts

Mitral valve annulus Blood velocity-time integral by US.calculated
Blood velocity-time integral
Bld vel; Calc; Calculation; CARD.US; Cardio; Cardiology; Echography; Heart Disease; Length; MV; MV ann; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; TVI; ULS; Ultrasound; US Calc; US+Calc; Vel; VTI

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

Mitral valve annulus Blood velocity-time integral by US.calculatedMV ann VTI US CalcBlood velocity-time integralCARD.USLenPtMitral valve.annulus

Frequently asked questions

Code details

Code29470-2

SystemLOINC

Display nameMitral valve annulus Blood velocity-time integral by US.calculated

DescriptionBlood velocity-time integral

Short nameMV ann VTI US Calc

ComponentBlood velocity-time integral

PropertyLen

TimingPt

System (specimen)Mitral valve.annulus

ScaleQn

MethodUS.calculated

ClassCARD.US

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.03

Last changed2.54

Part names

Blood velocity-time integralLenPtMitral valve.annulusQnUS.calculatedLengthPoint in time (spot)Mitral valve annulusUltrasound.calculated

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.