LOINCActiveObservation

LOINC Code 20337-2: Right ventricular Stroke volume by US 2D tricuspid valve calculated

20337-2 is a LOINC code used to identify Right ventricular Stroke volume by US 2D tricuspid valve 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 Stroke volume. It is commonly used with the system or sample type Heart.ventricle.right.

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 Stroke volume. It is commonly used with the system or sample type Heart.ventricle.right.

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.2D.tricuspid valve.calculated

What it does not mean

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

Key facts

  • Right ventricular Stroke volume by US 2D tricuspid valve calculated
  • Stroke volume
  • 2D US; Calc; Calculation; CARD.US; Cardiac; Cardiac output/Heart beat; Cardio; Cardiology; Echography; Heart Disease; Hrt; Hrt ventr; Point in time; QNT; Quan; Quant; Quantitative; R; Random; RT; RV; Sonogram; Sonograph; Sonography; SV; TV; ULS; Ultrasound; Ultrasound - 2-dimensional; US.2D.TV; Ventricular; Vol; Volume

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

Right ventricular Stroke volume by US 2D tricuspid valve calculatedRV SV US.2D.TVStroke volumeCARD.USVolPtHeart.ventricle.right

Frequently asked questions

Code details

Code20337-2
SystemLOINC
Display nameRight ventricular Stroke volume by US 2D tricuspid valve calculated
DescriptionStroke volume
Short nameRV SV US.2D.TV
ComponentStroke volume
PropertyVol
TimingPt
System (specimen)Heart.ventricle.right
ScaleQn
MethodUS.2D.tricuspid valve.calculated
ClassCARD.US
Example unitsmL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.48

Part names

Stroke volumeVolPtHeart.ventricle.rightQnUS.2D.tricuspid valve.calculatedVolumePoint in time (spot)Heart.ventricle RightUltrasound 2D.tricuspid valve.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.

LOINC Code 20337-2 | HealthAssure