LOINC
Version 2.67

11820-8Fetal Head Diameter.biparietal USActive

Term Description

Measured at level of thalamo-basal ganglia & either 3rd ventricle w/ visualization of quadrigeminal cisterns or top of 3rd ventricle w/ visualization of cavum septum pellucidi from echo leading edge to leading edge of parietal bones.
Source: Regenstrief LOINC

Part Descriptions

LP64601-5   Diameter.biparietal
The biparietal diameter (BPD) measurement, using outer-to-outer caliper positioning, is dependent on the head shape of the fetus (using the cephalic index). Due to inaccuracies that can occur with this measurement, the BPD is no longer routinely used for gestational age estimation or determining the appropriateness of fetal size later in pregnancy. Head circumference is the preferred method for measuring fetal head size. [PMID: 25044000] Source: Regenstrief LOINC

LP34037-9   Head US
An ultrasound study that determines position and size of several brain structures. Investigates suspected disease of soft tissues of the brain and spinal cord. Source: Regenstrief LOINC

Fully-Specified Name

Component
Diameter.biparietal
Property
Len
Time
Pt
System
Head^Fetus
Scale
Qn
Method
US.measured

Additional Names

Short Name
Fet BPD US.meas

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 1.0j-a
Last Updated
Version 2.27
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (CHINA)
直径.二顶骨:长度:时间点:头部^胎儿:定量型:超声.测量法
fr-BEFrench (BELGIUM)
Diamètre.bipariétal:Longueur:Temps ponctuel:Tête^Foetus:Quantitatif:US. Mesure
it-ITItalian (ITALY)
Diametro.biparietale:Len:Pt:Testa^feto:Qn:Ecografia.misurata
pt-BRPortuguese (BRAZIL)
Diâmetro.biparietal:Comprimento:Pt:Crânio^feto:Qn:US.mensurado
ru-RURussian (RUSSIAN FEDERATION)
Диаметр.бипариетальный:Дл:ТчкВрм:Голова^Плод:Колич:УЗ.измеренный
es-ARSpanish (ARGENTINA)
diámetro.biparietal:longitud:punto en el tiempo:cabeza^feto:cuantitativo:ultrasonido.medido

Example Units

Unit Source
cm Example UCUM Units
cm REGENSTRIEF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=11820-8