What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 81431-9: Regurgitation degree Aortic valve Angiography

Name: LOINC Code 81431-9: Regurgitation degree Aortic valve Angiography
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:05.775Z

81431-9 is a LOINC code used to identify Regurgitation degree Aortic valve Angiography 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 Regurgitation degree. It is commonly used with the system or sample type Aortic 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 Regurgitation degree. It is commonly used with the system or sample type Aortic 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: Angiography

What it does not mean

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

Key facts

Regurgitation degree Aortic valve Angiography

Regurgitation degree

Angiography is one method for determining the degree of aortic valve regurgitation. The Sellers grading system, originally published in 1964, is based on the opacification of the left ventricle and is still used today. The Sellers grading system is as follows1) + = evidence of a jet of regurgitant contrast material without opacification of the left ventricle; 2) ++ = evidence of a regurgitant jet with faint opacification of the left ventricle; 3) +++ = dense opacification of the left ventricle without a distinct visible jet; and 4) ++++ = left ventricle is opacified more densely than the aorta. [PMID: 14215054]

Angio; AO; AoV; AV; CARD.PROC; Cardio; Cardiology; Finding; Findings; Heart Disease; Ordinal; Point in time; QL; Qual; Qualitative; Random; Reg deg; Reg degree; Screen

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

Regurgitation degree Aortic valve AngiographyReg deg AV AngioRegurgitation degreeCARD.PROCFindPtAortic valve

Frequently asked questions

Code details

Code81431-9

SystemLOINC

Display nameRegurgitation degree Aortic valve Angiography

DescriptionRegurgitation degree

Short nameReg deg AV Angio

ComponentRegurgitation degree

PropertyFind

TimingPt

System (specimen)Aortic valve

ScaleOrd

MethodAngiography

ClassCARD.PROC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.56

Part names

Regurgitation degreeFindPtAortic valveOrdAngiographyFindingPoint in time (spot)

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.