11851-3

LOINC Code


LOINC code11851-3
name
descriptionDistance from frontal to occipital bone measured in same plane as biparietal diameter. Authors vary but seems most reasonable to use outer to outer edge in determining circumference. Measurement used to derive circumference and cephalic index.
statusACTIVE

Fully-Specified Name

componentDiameter.occipito-frontal
propertyLen  =  Length
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemHead^Fetus
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodUS.measured

Additional Names

short nameBrain; Cranial; Cranium; DIA; Diam; Echoencephalogram; Echoencephalography; Echography; Fetal; Gyn; Gynecology; Intracranial; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; OFD; Point in time; QNT; Quan; Quant; Quantitative

Basic Attributes

classOB.US
type2  Clinical
order vs. observationFet Head OFD US
example UCUM unitscm
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)

History/Usage

first released
last updated2.58
last change typeMAJ  - change to name field other than Component;
change reasoncm

Related Names

Y

Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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