LOINCActiveObservation

LOINC Code 78189-8: Mitral valve medial annulus E-wave/Tissue velocity.E-wave.max by US.doppler+tissue doppler

78189-8 is a LOINC code used to identify Mitral valve medial annulus E-wave/Tissue velocity.E-wave.max by US.doppler+tissue 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 E wave/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 E wave/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.doppler+tissue doppler

What it does not mean

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

Key facts

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

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 E-wave/Tissue velocity.E-wave.max by US.doppler+tissue dopplerMV med ann E-wave/e-prime Vmax DOP+TDIE wave/Tissue velocity.E wave.maxCARD.USVelRtoPtMitral valve.annulus.medial

Frequently asked questions

Code details

Code78189-8
SystemLOINC
Display nameMitral valve medial annulus E-wave/Tissue velocity.E-wave.max by US.doppler+tissue doppler
DescriptionE wave/Tissue velocity.E wave.max
Short nameMV med ann E-wave/e-prime Vmax DOP+TDI
ComponentE wave/Tissue velocity.E wave.max
PropertyVelRto
TimingPt
System (specimen)Mitral valve.annulus.medial
ScaleQn
MethodUS.doppler+tissue doppler
ClassCARD.US
Example unitsratio
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

E wave/Tissue velocity.E wave.maxVelRtoPtMitral valve.annulus.medialQnUS.doppler+tissue dopplerVelocity RatioPoint 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.