11982-6

LOINC Code


LOINC code11982-6
name
descriptionDerived from measures of occipital-frontal diameter and transaxial diameter assuming shape is an ellipse. The outer to outer transaxial diameter is used. This estimate should be closer to that measured with ellipse overlay or by tracing.
statusACTIVE

Fully-Specified Name

componentPerimeter
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.derived from OFD&O-O TD

Additional Names

short nameBrain; by OFD+O-O TD; Circum; Circumference; Cranial; Cranium; der US; Echoencephalogram; Echoencephalography; Echography; Fetal; Gyn; Gynecology; HC; Head Circumference; Intracranial; Length; OB; ObGyn; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obs

Basic Attributes

classOB.US
type2  Clinical
order vs. observationFet Head Circum
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 updated2.48
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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