Date of last menstrual period

Date of last menstrual period (observable entity)

active

Code	`21840007`
Semantic tag	observable entity
Module	international
Definition	primitive
Effective time	20020131

Synonyms

LMP - Last menstrual period

Parents (1)

364313002Measure of menstruation observable entity

Children (2)

248993009Date of last normal period observable entity
161713000Last menstrual period -1st day observable entity