LOINCActiveObservation

LOINC Code 79911-4: Mitral valve medial annulus Tissue velocity.E-wave.max by US.tissue doppler.A4C

79911-4 is a LOINC code used to identify Mitral valve medial annulus Tissue velocity.E-wave.max by US.tissue doppler.A4C 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 Tissue velocity.E wave.max. It is commonly used with the system or sample type Mitral valve.annulus.medial.

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 Tissue velocity.E wave.max. It is commonly used with the system or sample type Mitral valve.annulus.medial.

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.tissue doppler.A4C

What it does not mean

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

Key facts

  • Mitral valve medial annulus Tissue velocity.E-wave.max by US.tissue doppler.A4C
  • Tissue velocity.E wave.max
  • Blood flow.diastolic.early wave.max; CARD.US; CARD.US.DICOM; Cardio; Cardiology; Early wave; Echography; e-prime Vmax; E-wave; Heart Disease; Largest; Max V; Maximal; Maximum; MV; MV ann; MV med ann; Peak; Peak E-wave; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; TDI; TDI.A4C; ULS; Ultrasound; V max; Vel; Velocity; Vmax

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 medial annulus Tissue velocity.E-wave.max by US.tissue doppler.A4CMV med ann e-prime Vmax TDI.A4CTissue velocity.E wave.maxCARD.US.DICOMVelPtMitral valve.annulus.medial

Frequently asked questions

Code details

Code79911-4
SystemLOINC
Display nameMitral valve medial annulus Tissue velocity.E-wave.max by US.tissue doppler.A4C
DescriptionTissue velocity.E wave.max
Short nameMV med ann e-prime Vmax TDI.A4C
ComponentTissue velocity.E wave.max
PropertyVel
TimingPt
System (specimen)Mitral valve.annulus.medial
ScaleQn
MethodUS.tissue doppler.A4C
ClassCARD.US.DICOM
Example unitscm/s
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.54

Part names

Tissue velocity.E wave.maxVelPtMitral valve.annulus.medialQnUS.tissue doppler.A4CTissue velocity.E-wave.maxVelocity (distance/time)Point in time (spot)Mitral valve medial annulus

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 79911-4 | HealthAssure