LOINC Code 11819-0: Fetal Thorax Diameter.anterior-posterior 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 Diameter.anterior-posterior. It is commonly used with the system or sample type Thorax^Fetus.

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.measured

What it does not mean

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

Key facts

• Fetal Thorax Diameter.anterior-posterior US
• Diameter.anterior-posterior
• There is little agreement about the landmarks to be used to make these measurements. Usually the antero posterior and transaxial diameters are measured from outer edge to outer edge in the trans-axial projections at the level of cardiac motion.
• APAD; DIA; Diam; Diam AP; Echography; Fetal; Gyn; Gynecology; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Thoracic; ULS; Ultrasound; US+Meas

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