LOINC Code 12170-7: Fetal Head Hemisphere width 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 Width.hemisphere. It is commonly used with the system or sample type Head^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 Head Hemisphere width US
• Width.hemisphere
• Measured from the same side of the head as the lateral ventricle width and parallel to that measurement from the falx midline echo to the widest part of the inner surface of the calvarium
• Brain; Cranial; Cranium; Echoencephalogram; Echoencephalography; Echography; Fetal; Gyn; Gynecology; Hemispheric width; HW; Intracranial; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Skull; Sonogram; Sonograph; Sonography; 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