LOINCActiveObservation

LOINC Code 20300-0: Right ventricular Mean pressure gradient by US.doppler

20300-0 is a LOINC code used to identify Right ventricular Mean pressure gradient 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 Pressure gradient.mean. 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 Pressure gradient.mean. 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.doppler

What it does not mean

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

Key facts

  • Right ventricular Mean pressure gradient by US.doppler
  • Pressure gradient.mean
  • Average; Avg; CARD.US; Cardiac; Cardio; Cardiology; DOP; DUPLEX; Echography; Grad; Heart Disease; Hrt; Hrt ventr; Mean press grad; Point in time; Press grad; QNT; Quan; Quant; Quantitative; R; Random; RT; RV; Sonogram; Sonograph; Sonography; 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 Mean pressure gradient by US.dopplerRV Mean press grad DOPPressure gradient.meanCARD.USPressDiffPtHeart.ventricle.right

Frequently asked questions

Code details

Code20300-0
SystemLOINC
Display nameRight ventricular Mean pressure gradient by US.doppler
DescriptionPressure gradient.mean
Short nameRV Mean press grad DOP
ComponentPressure gradient.mean
PropertyPressDiff
TimingPt
System (specimen)Heart.ventricle.right
ScaleQn
MethodUS.doppler
ClassCARD.US
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.67

Part names

Pressure gradient.meanPressDiffPtHeart.ventricle.rightQnUS.dopplerMean pressure gradientPressure DifferencePoint in time (spot)Heart.ventricle RightUltrasound.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.

LOINC Code 20300-0 | HealthAssure