LOINC Code 77615-3: Liver stiffness by US.transient elastography

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 Liver stiffness. It is commonly used with the system or sample type Abdomen>Liver.

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: Both
• Method: US.transient elastography

What it does not mean

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

Key facts

• Liver stiffness by US.transient elastography
• Liver stiffness
• Liver stiffness is measured in a non-invasive manner by vibration-controlled transient elastography (VCTE). VCTE uses an ultrasound transducer mounted on the axis of a mechanical vibrator. The vibrator induces a 50 Hz shear wave through the liver and ultrasounds are used to track the propagation of the shear wave and measure its speed of propagation into the liver. The speed is converted into stiffness using Hooke's law. Stiffness measurements are expressed in kPa. Clinical interpretation of liver stiffness values should always be in the hands of an expert clinician and should be made with full knowledge of patient demographics, disease etiology and essential laboratory parameters.
• Abd; Abdo; Abdomen+; Abdominal; Echography; Fibroscan; Hepar; Hepatic; Imaging; Point in time; Pressure; QNT; Quan; Quant; Quantitative; RADIOLOGY; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; US.TE

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