Excessive vomiting in pregnancy
Notes: Hyperemesis gravidarum, mild or unspecified, starting before the end of the 20th week of gestation ; Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as carbohydrate depletion ; Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as dehydration ; Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as electrolyte imbalance ; Excessive vomiting starting after 20 completed weeks of gestation ; Vomiting due to diseases classified elsewhere, complicating pregnancy ; code, to identify cause.