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maternal disorders predominantly related to pregnancy (O20-O29)=
- Excludes2: maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
- maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
O20 Hemorrhage in early pregnancy
- Includes: before completion of 20 weeks gestation
- Excludes1: pregnancy with abortive outcome (O00-O08)
- O20.0 Threatened abortion
- Hemorrhage specified as due to threatened abortion
- O20.8 Other hemorrhage in early pregnancy
- O20.9 Hemorrhage in early pregnancy, unspecified
O21 Excessive vomiting in pregnancy
- O21.0 Mild hyperemesis gravidarum
- Hyperemesis gravidarum, mild or unspecified, starting before the end of the 20th week of gestation
- O21.1 Hyperemesis gravidarum with metabolic disturbance
- 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
- O21.2 Late vomiting of pregnancy
- Excessive vomiting starting after 20 completed weeks of gestation
- O21.8 Other vomiting complicating pregnancy
- Vomiting due to diseases classified elsewhere, complicating pregnancy
- Use additional code, to identify cause.
- O21.9 Vomiting of pregnancy, unspecified
O22 Venous complications in pregnancy
- Excludes1: venous complications of:
- abortion NOS (O03.9)
- ectopic or molar pregnancy (O08.7)
- failed attempted abortion (O07.39, O07.89)
- induced abortion (O04.89, O05.89)
- spontaneous abortion (O03.89, O03.89)
- Excludes2: obstetric pulmonary embolism (O88.-)
- venous complications of childbirth and the puerperium (O87.-)
- O22.0 Varicose veins of lower extremity in pregnancy
- Varicose veins NOS in pregnancy
- O22.00 Varicose veins of lower extremity in pregnancy, unspecified trimester
- O22.
