LOINC Code 59083-6: Heart Isovolumic relaxation time by US

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 Isovolumic relaxation time. It is commonly used with the system or sample type Heart.

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
• Method: US

What it does not mean

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

Key facts

• Heart Isovolumic relaxation time by US
• Isovolumic relaxation time
• Duration from the cessation of aortic valve flow to the onset of Mitral flow (can be measured for the right side as well, using the analogous valve flows)
• CARD.US; Cardiac; Cardio; Cardiology; Echography; Heart Disease; Hrt; IVRT; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound

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