HealthAssure
HealthAssureGood Life
LOINCActiveObservation

LOINC Code 77903-3: Tricuspid valve annulus Excursion distance during systole by US.M-mode

77903-3 is a LOINC code used to identify Tricuspid valve annulus Excursion distance during systole by US.M-mode 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 Excursion distance.systole. It is commonly used with the system or sample type Tricuspid 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 Excursion distance.systole. It is commonly used with the system or sample type Tricuspid 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.M-mode

What it does not mean

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

Key facts

Tricuspid valve annulus Excursion distance during systole by US.M-mode
Excursion distance.systole
Tricuspid annular plane systolic excursion (TAPSE) is the distance the tricuspid annulus is displaced during systole and is a reflection of right ventricular function. TAPSE is measured by M-mode ultrasound between end-diastole and peak systole, and a result of <17 mm is highly suggestive of right ventricular systolic dysfunction. [PMID25559473]
CARD.US; Cardio; Cardiology; Echography; Excursion dist sys; Heart Disease; Length; MM; mmode; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Sys; Syst; TV; TV ann; ULS; Ultrasound

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 annulus Excursion distance during systole by US.M-modeTV ann Excursion dist sys M-modeExcursion distance.systoleCARD.USLenPtTricuspid valve.annulus

Frequently asked questions

Code details

Code77903-3
SystemLOINC
Display nameTricuspid valve annulus Excursion distance during systole by US.M-mode
DescriptionExcursion distance.systole
Short nameTV ann Excursion dist sys M-mode
ComponentExcursion distance.systole
PropertyLen
TimingPt
System (specimen)Tricuspid valve.annulus
ScaleQn
MethodUS.M-mode
ClassCARD.US
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.67

Part names

Excursion distance.systoleLenPtTricuspid valve.annulusQnUS.M-modeExcursion distance during systoleLengthPoint in time (spot)Tricuspid valve annulusUltrasound.M-mode

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.