O00-O08
- Pregnancy with abortive outcome (O00-O08)
- continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)
O09
- Supervision of high risk pregnancy (O09)
O10-O16
- Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
O20-O29
- Other maternal disorders predominantly related to pregnancy (O20-O29)
- 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)
O30-O48
- Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
O60-O77
- Complications of labor and delivery (O60-O77)
O80-O82
- Encounter for delivery (O80-O82)
O85-O92
- Complications predominantly related to the puerperium (O85-O92)
- mental and behavioral disorders associated with the puerperium (F53.-)
- obstetrical tetanus (A34)
- puerperal osteomalacia (M83.0)
O94-O9A
- Other obstetric conditions, not elsewhere classified (O94-O9A)