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 80004-5: Left ventricular End-systolic volume by US.2D.A4C+Calculated by single plane method of disks

Name: LOINC Code 80004-5: Left ventricular End-systolic volume by US.2D.A4C+Calculated by single plane method of disks
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.838Z

80004-5 is a LOINC code used to identify Left ventricular End-systolic volume by US.2D.A4C+Calculated by single plane method of disks 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 End-systolic volume. It is commonly used with the system or sample type Heart.ventricle.left.

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 End-systolic volume. It is commonly used with the system or sample type Heart.ventricle.left.

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+Calc by single plane method of disks

What it does not mean

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

Key facts

Left ventricular End-systolic volume by US.2D.A4C+Calculated by single plane method of disks
End-systolic volume
2D US; A4C MOD; Calculated; CARD.US; CARD.US.DICOM; Cardiac; Cardio; Cardiology; Echography; ES vol; Heart Disease; Hrt; Hrt ventr; L; LT; LV; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Ultrasound - 2-dimensional; 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

Left ventricular End-systolic volume by US.2D.A4C+Calculated by single plane method of disksLV ES vol A4C MODEnd-systolic volumeCARD.US.DICOMVolPtHeart.ventricle.left

Frequently asked questions

Code details

Code80004-5

SystemLOINC

Display nameLeft ventricular End-systolic volume by US.2D.A4C+Calculated by single plane method of disks

DescriptionEnd-systolic volume

Short nameLV ES vol A4C MOD

ComponentEnd-systolic volume

PropertyVol

TimingPt

System (specimen)Heart.ventricle.left

ScaleQn

MethodUS.2D.A4C+Calc by single plane method of disks

ClassCARD.US.DICOM

Example unitsmL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Part names

End-systolic volumeVolPtHeart.ventricle.leftQnUS.2D.A4C+Calc by single plane method of disksVolumePoint in time (spot)Heart ventricle - leftUS.2D.A4C+Calculated by single plane method of disks

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.