LOINCActiveObservation

LOINC Code 18175-0: Tricuspid valve Velocity-time integral during diastole by US.doppler

18175-0 is a LOINC code used to identify Tricuspid valve Velocity-time integral during diastole 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 Blood velocity-time integral.diastole. It is commonly used with the system or sample type Tricuspid 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 Blood velocity-time integral.diastole. It is commonly used with the system or sample type Tricuspid 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.doppler

What it does not mean

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

Key facts

  • Tricuspid valve Velocity-time integral during diastole by US.doppler
  • Blood velocity-time integral.diastole
  • Bld vel; CARD.US; Cardio; Cardiology; Dias; Diast; Diastoli; DOP; DUPLEX; Echography; Heart Disease; Length; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; TV; TVI; ULS; Ultrasound; Vel; VTI; VTI dia

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

Tricuspid valve Velocity-time integral during diastole by US.dopplerTV VTI dia DOPBlood velocity-time integral.diastoleCARD.USLenPtTricuspid valve

Frequently asked questions

Code details

Code18175-0
SystemLOINC
Display nameTricuspid valve Velocity-time integral during diastole by US.doppler
DescriptionBlood velocity-time integral.diastole
Short nameTV VTI dia DOP
ComponentBlood velocity-time integral.diastole
PropertyLen
TimingPt
System (specimen)Tricuspid valve
ScaleQn
MethodUS.doppler
ClassCARD.US
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.70

Part names

Blood velocity-time integral.diastoleLenPtTricuspid valveQnUS.dopplerVelocity-time integral during diastoleLengthPoint in time (spot)Ultrasound.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.