| P55 | Hemolytic disease of newborn |
| P55.0 | Rh isoimmunization of newborn |
| P55.1 | ABO isoimmunization of newborn |
| P55.8 | Other hemolytic diseases of newborn |
| P55.9 | Hemolytic disease of newborn, unspecified |
| P56 | Hydrops fetalis due to hemolytic disease |
| P56.0 | Hydrops fetalis due to isoimmunization |
| P56.9 | Hydrops fetalis due to other and unspecified hemolytic disease |
| P56.90 | Hydrops fetalis due to unspecified hemolytic disease |
| P56.99 | Hydrops fetalis due to other hemolytic disease |
| P57 | Kernicterus |
| P57.0 | Kernicterus due to isoimmunization |
| P57.8 | Other specified kernicterus |
| P57.9 | Kernicterus, unspecified |