| ICD Code | Description |
|---|
| O30 | Multiple gestation |
| O31 | Complications specific to multiple gestation |
| O32 | Maternal care for malpresentation of fetus |
| O33 | Maternal care for disproportion |
| O34 | Maternal care for abnormality of pelvic organs |
| O35 | Maternal care for known or suspected fetal abnormality and damage |
| O36 | Maternal care for other fetal problems |
| O40 | Polyhydramnios |
| O41 | Other disorders of amniotic fluid and membranes |
| O42 | Premature rupture of membranes |
| O43 | Placental disorders |
| O44 | Placenta previa |
| O45 | Premature separation of placenta [abruptio placentae] |
| O46 | Antepartum hemorrhage, not elsewhere classified |
| O47 | False labor |
| O48 | Late pregnancy |