| MDC 15 Newborns & Other Neonates with Conditions Originating in Perinatal Period |
| Extreme Immaturity or Respiratory Distress Syndrome, Neonate |
| P0701 | Extremely low birth weight newborn, less than 500 grams |
| P0702 | Extremely low birth weight newborn, 500-749 grams |
| P0703 | Extremely low birth weight newborn, 750-999 grams |
| P0721 | Extreme immaturity of newborn, gestational age less than 23 completed weeks |
| P0722 | Extreme immaturity of newborn, gestational age 23 completed weeks |
| P0723 | Extreme immaturity of newborn, gestational age 24 completed weeks |
| P0724 | Extreme immaturity of newborn, gestational age 25 completed weeks |
| P0725 | Extreme immaturity of newborn, gestational age 26 completed weeks |
| P220 | Respiratory distress syndrome of newborn |