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 80076-3: Right atrial Major axis at end systole [Length] by US.2D.A4C

Name: LOINC Code 80076-3: Right atrial Major axis at end systole [Length] by US.2D.A4C
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.839Z

80076-3 is a LOINC code used to identify Right atrial Major axis at end systole [Length] by US.2D.A4C 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 Major axis.end systole. It is commonly used with the system or sample type Heart.atrium.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 Major axis.end systole. It is commonly used with the system or sample type Heart.atrium.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.A4C

What it does not mean

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

Key facts

Right atrial Major axis at end systole [Length] by US.2D.A4C
Major axis.end systole
2D US; Atrial; CARD.US; CARD.US.DICOM; Cardiac; Cardio; Cardiology; Echography; ES; ES major axis; Heart Disease; Hrt; LAX; Length; Long axis; Point in time; QNT; Quan; Quant; Quantitative; R; RA; Random; RT; Sonogram; Sonograph; Sonography; Sys; Syst; ULS; Ultrasound; Ultrasound - 2-dimensional

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 atrial Major axis at end systole [Length] by US.2D.A4CRA ES major axis A4CMajor axis.end systoleCARD.US.DICOMLenPtHeart.atrium.right

Frequently asked questions

Code details

Code80076-3

SystemLOINC

Display nameRight atrial Major axis at end systole [Length] by US.2D.A4C

DescriptionMajor axis.end systole

Short nameRA ES major axis A4C

ComponentMajor axis.end systole

PropertyLen

TimingPt

System (specimen)Heart.atrium.right

ScaleQn

MethodUS.2D.A4C

ClassCARD.US.DICOM

Example unitscm

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Part names

Major axis.end systoleLenPtHeart.atrium.rightQnUS.2D.A4CMajor axis at end systoleLengthPoint in time (spot)Heart.atrium Right

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.