LOINC
Version 2.71

11885-1Gestational age Estimated from last menstrual periodActive

Term Description

Gestational age estimate based on date of first day of last menstrual period.
Source: Regenstrief LOINC

Part Description

LP19507-0   Gestational age
The age of the conceptus, beginning from the time of fertilization. In clinical obstetrics, the gestational age is often estimated as the time from the last day of the last menstruation which is about 2 weeks before ovulation and fertilization. Source: National Library of Medicine, MeSH 2006

Fully-Specified Name

Component
Gestational age
Property
Time
Time
Pt
System
^Fetus
Scale
Qn
Method
Estimated from last menstrual period

Additional Names

Short Name
GA Est from LMP

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 1.0j-a
Last Updated
Version 2.40
Order vs. Observation
Observation

Member of these Groups

LG50112-8 Gestational ageTime^Fetus

Language Variants Get Info

zh-CNChinese (China)
孕龄:时间:时间点:^胎儿:定量型:依据末次月经周期的胎龄估计法
nl-NLDutch (Netherlands)
zwangerschapsduur:tijd:moment:^foetus:kwantitatief:berekend op basis van laatste menstruatie
fr-BEFrench (Belgium)
Age gestationnel:Durée:Temps ponctuel:^Foetus:Quantitatif:Estimé sur date des dernières règles
it-ITItalian (Italy)
Età gestazionale:Tempo:Pt:^feto:Qn:Stimato in base a ultimo ciclo mestruale
pt-BRPortuguese (Brazil)
Idade gestacional:Tempo:Pt:^Feto:Qn:Estimado pela data da última menstruação
es-ARSpanish (Argentina)
estimado a partir del último período menstrual:tiempo:punto en el tiempo:^feto:cuantitativo:ESTIMATED FROM LAST MENSTRUAL PERIOD

Example Units

Unit Source
wk Example UCUM Units
week REGENSTRIEF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=11885-1