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 20193-9: Left ventricular Cardiac index 2 chamber by US.modified.single-plane.calculated

Name: LOINC Code 20193-9: Left ventricular Cardiac index 2 chamber by US.modified.single-plane.calculated
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:28.845Z

20193-9 is a LOINC code used to identify Left ventricular Cardiac index 2 chamber by US.modified.single-plane.calculated 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 Cardiac output/Body surface area.2 chamber. 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 Cardiac output/Body surface area.2 chamber. 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.mod.single-plane.calculated

What it does not mean

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

Key facts

Left ventricular Cardiac index 2 chamber by US.modified.single-plane.calculated
Cardiac output/Body surface area.2 chamber
Area 2; Bdy surface; bod; Bodies; BSA; BSA 2cham; Calc; Calculation; CARD.US; Cardiac; Cardio; Cardiology; CO; Echography; Heart Disease; Hrt; Hrt ventr; II; L; LT; LV; Method of discs; Method of disks; MOD-SP2; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Surf; ULS; Ultrasound; US.MOD-SP; Ventricular; Volume rate/area; Volume Rate/Ratio

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 Cardiac index 2 chamber by US.modified.single-plane.calculatedLV Cardiac index 2cham US.MOD-SPCardiac output/Body surface area.2 chamberCARD.USArVRatPtHeart.ventricle.left

Frequently asked questions

Code details

Code20193-9

SystemLOINC

Display nameLeft ventricular Cardiac index 2 chamber by US.modified.single-plane.calculated

DescriptionCardiac output/Body surface area.2 chamber

Short nameLV Cardiac index 2cham US.MOD-SP

ComponentCardiac output/Body surface area.2 chamber

PropertyArVRat

TimingPt

System (specimen)Heart.ventricle.left

ScaleQn

MethodUS.mod.single-plane.calculated

ClassCARD.US

Example unitsL/min/m2

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.48

Part names

Cardiac output/Body surface area.2 chamberArVRatPtHeart.ventricle.leftQnUS.mod.single-plane.calculatedVolume Rate/AreaPoint in time (spot)Heart ventricle - leftUltrasound.mod.single-plane.calculated

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.