| P00-P04 | Newborn affected by maternal factors and by complications of pregnancy, labor, and delivery |
| P05-P08 | Disorders of newborn related to length of gestation and fetal growth |
| P09 | Abnormal findings on neonatal screening |
| P10-P15 | Birth trauma |
| P19-P29 | Respiratory and cardiovascular disorders specific to the perinatal period |
| P35-P39 | Infections specific to the perinatal period |
| P50-P61 | Hemorrhagic and hematological disorders of newborn |
| P70-P74 | Transitory endocrine and metabolic disorders specific to newborn |
| P76-P78 | Digestive system disorders of newborn |
| P80-P83 | Conditions involving the integument and temperature regulation of newborn |
| P84 | Other problems with newborn |
| P90-P96 | Other disorders originating in the perinatal period |
