| P744 | Other transitory electrolyte disturbances of newborn |
| P7441 | Alkalosis of newborn |
| P7442 | Disturbances of chlorine balance of newborn |
| P74421 | Hyperchloremia of newborn |
| P74422 | Hypochloremia of newborn |
| P7449 | Other transitory electrolyte disturbance of newborn |
| P745 | Transitory tyrosinemia of newborn |
| P746 | Transitory hyperammonemia of newborn |
| P748 | Other transitory metabolic disturbances of newborn |
| P749 | Transitory metabolic disturbance of newborn, unspecified |
| P76 | Other intestinal obstruction of newborn |
| P760 | Meconium plug syndrome |
| P761 | Transitory ileus of newborn |
| P762 | Intestinal obstruction due to inspissated milk |
| P768 | Other specified intestinal obstruction of newborn |
| P769 | Intestinal obstruction of newborn, unspecified |
| P77 | Necrotizing enterocolitis of newborn |
| P771 | Stage 1 necrotizing enterocolitis in newborn |
| P772 | Stage 2 necrotizing enterocolitis in newborn |
| P773 | Stage 3 necrotizing enterocolitis in newborn |
| P779 | Necrotizing enterocolitis in newborn, unspecified |
| P78 | Other perinatal digestive system disorders |
| P780 | Perinatal intestinal perforation |
| P781 | Other neonatal peritonitis |
| P782 | Neonatal hematemesis and melena due to swallowed maternal blood |
| P783 | Noninfective neonatal diarrhea |
| P788 | Other specified perinatal digestive system disorders |
| P7881 | Congenital cirrhosis (of liver) |
| P7882 | Peptic ulcer of newborn |
| P7883 | Newborn esophageal reflux |
| P7884 | Gestational alloimmune liver disease |
| P7889 | Other specified perinatal digestive system disorders |
| P789 | Perinatal digestive system disorder, unspecified |
| P80 | Hypothermia of newborn |
| P800 | Cold injury syndrome |
| P808 | Other hypothermia of newborn |
| P809 | Hypothermia of newborn, unspecified |
| P81 | Other disturbances of temperature regulation of newborn |
| P810 | Environmental hyperthermia of newborn |
| P818 | Other specified disturbances of temperature regulation of newborn |
| P819 | Disturbance of temperature regulation of newborn, unspecified |
| P83 | Other conditions of integument specific to newborn |
| P830 | Sclerema neonatorum |
| P831 | Neonatal erythema toxicum |
| P832 | Hydrops fetalis not due to hemolytic disease |
| P833 | Other and unspecified edema specific to newborn |
| P8330 | Unspecified edema specific to newborn |
| P8339 | Other edema specific to newborn |
| P834 | Breast engorgement of newborn |
| P835 | Congenital hydrocele |