LOINC Home

{component}   LP432695-7

Clinical   LP7787-7

OB ultrasound   LP7830-5

Gestational age   LP19507-0

Gestational age | Fetus | OB ultrasound   LP416279-0

Gestational age estimated from Head circumference on US by Hadlock 1984 method   11932-1

LOINC Code


LOINC code11932-1
nameGestational age estimated from Head circumference on US by Hadlock 1984 method
statusACTIVE

Fully-Specified Name

componentGestational age
propertyTime  =  Time Duration
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^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+Estimated from HC.Hadlock 1984

Additional Names

short nameGA from HC.Hadlock84

Basic Attributes

classOB.US
type2  Clinical
order vs. observationObservation
formula (readable)GESTATIONAL AGE [wk] = 8.96 + 0.54 * (head circumference [cm]) + 0.0003 * (head circumference [cm]) ^ 3
example UCUM unitsd
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)
example unitdays

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Groups

LG50112-8Gestational ageTime^Fetus

History/Usage

first released
last updated2.52
last change typeMIN  - change to field other than name

Related Names

84
Echography
Est
estimation
Fetal
from HC.Hadlock84
GA
Gest
Gestation
Gyn
Gynecology
HC chart
Head Circumference
OB
ObGyn
OBSTERICAL
 OBSTERICAL.ULTRASOUND
Obstetrical
Obstetrics
Point in time
predicted
Prenatal
QNT
Quan
Quant
Quantitative
Random
Sonogram
Sonograph
Sonography
ULS
Ultrasound

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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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