Category O21

Excessive vomiting in pregnancy

Clinical Classification Guidelines

Specific Diagnosis Codes

Mild hyperemesis gravidarum
O21.0
Hyperemesis gravidarum with metabolic disturbance
O21.1
Late vomiting of pregnancy
O21.2
Other vomiting complicating pregnancy
O21.8
Vomiting of pregnancy, unspecified
O21.9