98031-8

LOINC Code


LOINC code98031-8
name
descriptionThe estimated fetal weight discordance (EFWD) is a measure of the weight difference between multiple fetuses during pregnancy. Greater discordance is associated with increased risk of adverse outcomes. It is calculated as 1 - Estimated fetal weight ratio [LOINC: 98032-6].
statusACTIVE

Fully-Specified Name

componentBody weight discordance
propertyMRto  =  Mass Ratio
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.
system^Fetuses
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+Calculated

Additional Names

short nameBdy weight; bod; Bodies; Calc; Calculation; Echography; EFW; EFWD; Estimated fetal weight discordance; Fetal; Mass concentration ratio; Mass ratio; MCRto; OBSTERICAL; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Point in time; QNT; Quan; Quant; Quantit

Basic Attributes

classOB.US
type2  Clinical
order vs. observationEFW discordance
example UCUM units%
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 updated2.7
last change typeADD  - added
change reason%

Related Names

N

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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