LOINC Code 20313-3: Left ventricular Stroke volume index by US 2D left ventricular outflow tract area calculated

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 Stroke volume/Body surface area. 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.LVOT area.calculated

What it does not mean

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

Key facts

• Left ventricular Stroke volume index by US 2D left ventricular outflow tract area calculated
• Stroke volume/Body surface area
• 2D US; Bdy surface; bod; Bodies; BSA; Calc; Calculation; CARD.US; Cardiac; Cardiac output/Heart beat; Cardio; Cardiology; Echography; Heart Disease; Hrt; Hrt ventr; L; Left Ventricular Outflow Tract; LT; LV; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Surf; SV; ULS; Ultrasound; Ultrasound - 2-dimensional; Ventricular; Vol; Volume/area

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

Frequently asked questions