LOINC
Version 2.67

11984-2Fetal Head Circumference USActive

Term Description

Generic term for head circumference when method of measure of calculation is not stated or specified.
Source: Regenstrief LOINC

Part Descriptions

LP70910-2   Perimeter
Perimeter is the measurement of any boundary. Measurements of the area and perimeter of fetal cross-sections have been found to establish both an accurate estimation of birthweight and an early diagnosis and differentiation of the various types of abnormal fetal growth patterns. For example, abdominal perimeter measurements are an effective predictor of discordant twins where the weight difference between the two exceeds 15%.
[PMID: 103914] [PMID: 3309749] 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
Perimeter
Property
Len
Time
Pt
System
Head^Fetus
Scale
Qn
Method
US.measured

Additional Names

Short Name
Fet Head Circum 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)
周长:长度:时间点:头部^胎儿:定量型:超声.测量法
it-ITItalian (ITALY)
Perimetro:Len:Pt:Testa^feto:Qn:Ecografia.misurata
pt-BRPortuguese (BRAZIL)
Perímetro:Comprimento:Pt:Crânio^feto:Qn:US.mensurado
ru-RURussian (RUSSIAN FEDERATION)
Периметр:Дл:ТчкВрм:Голова^Плод:Колич:УЗ.измеренный
es-ARSpanish (ARGENTINA)
perímetro: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=11984-2