LOINCActiveObservation

LOINC Code 82341-9: Right ventricular Intrachamber systolic pressure estimated by US

82341-9 is a LOINC code used to identify Right ventricular Intrachamber systolic pressure estimated by US 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 Intrachamber systolic. 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 Intrachamber systolic. 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+Estimated

What it does not mean

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

Key facts

Right ventricular Intrachamber systolic pressure estimated by US
Intrachamber systolic
Right ventricular systolic pressure (RVSP) can be estimated based on the the peak tricuspid regurgitant jet velocity (TR V), using the simplified Bernoulli equation, along with the estimated right atrial pressure (RAP) [LOINC82337-7], which is itself estimated based on the diameter of the inferior vena cava. [PMID: 20620859]
BP sys; CARD.US; Cardiac; Cardio; Cardiology; Echography; Est; estimation; Heart Disease; Hrt; Hrt ventr; Intrachamber pres; Intrachamber sys pres; Point in time; predicted; Pressure; QNT; Quan; Quant; Quantitative; R; Random; RT; RV; SBP; Sonogram; Sonograph; Sonography; Sys BP; ULS; Ultrasound; Ventricular

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 Intrachamber systolic pressure estimated by USRV Intrachamber sys pres US+estIntrachamber systolicCARD.USPresPtHeart.ventricle.right

Frequently asked questions

Code details

Code82341-9
SystemLOINC
Display nameRight ventricular Intrachamber systolic pressure estimated by US
DescriptionIntrachamber systolic
Short nameRV Intrachamber sys pres US+est
ComponentIntrachamber systolic
PropertyPres
TimingPt
System (specimen)Heart.ventricle.right
ScaleQn
MethodUS+Estimated
ClassCARD.US
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.71

Part names

Intrachamber systolicPresPtHeart.ventricle.rightQnUS+EstimatedPressurePoint in time (spot)Heart.ventricle RightUltrasound+Estimated

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.