LOINC Code 11866-1: Fetal Cerebellum Mean transverse diameter Estimated from gestational age

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.transverse.mean. It is commonly used with the system or sample type Cerebellum^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: Estimated from gestational age

What it does not mean

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

Key facts

• Fetal Cerebellum Mean transverse diameter Estimated from gestational age
• Diameter.transverse.mean
• Mean cerebellar diameter for gestational age predicted from a regression formula derived from a standard population.
• Average; Avg; cerebellar; DIA; Diam; Diam transverse; Est; Est from GA; estimation; Fetal; Gest; Gestation; Gyn; Gynecology; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; predicted; Prenatal; QNT; Quan; Quant; Quantitative; Random; TCD; Transcerebellar diameter

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