LOINC Code 18003-4: Aortic valve Regurgitant deceleration time slope by US.doppler

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 Regurgitant deceleration time slope. It is commonly used with the system or sample type Aortic valve.

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.doppler

What it does not mean

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

Key facts

• Aortic valve Regurgitant deceleration time slope by US.doppler
• Regurgitant deceleration time slope
• MC828; slope from peak AR gradient to min gradient
• Acceleration; AO; AoV; AV; CARD.US; Cardio; Cardiology; Dec; DOP; DT; DUPLEX; Echography; Heart Disease; Point in time; QNT; Quan; Quant; Quantitative; Random; Regurg decel time slope; 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