| P07 | Disorders of newborn related to short gestation and low birth weight, not elsewhere classified | NON-BILLABLE CODE |
| P07.0 | Extremely low birth weight newborn | NON-BILLABLE CODE |
| P07.00 | Extremely low birth weight newborn, unspecified weight | BILLABLE CODE |
| P07.01 | Extremely low birth weight newborn, less than 500 grams | BILLABLE CODE |
| P07.02 | Extremely low birth weight newborn, 500-749 grams | BILLABLE CODE |
| P07.03 | Extremely low birth weight newborn, 750-999 grams | BILLABLE CODE |
| P07.1 | Other low birth weight newborn | NON-BILLABLE CODE |
| P07.10 | Other low birth weight newborn, unspecified weight | BILLABLE CODE |
| P07.14 | Other low birth weight newborn, 1000-1249 grams | BILLABLE CODE |
| P07.15 | Other low birth weight newborn, 1250-1499 grams | BILLABLE CODE |
| P07.16 | Other low birth weight newborn, 1500-1749 grams | BILLABLE CODE |
| P07.17 | Other low birth weight newborn, 1750-1999 grams | BILLABLE CODE |
| P07.18 | Other low birth weight newborn, 2000-2499 grams | BILLABLE CODE |
| P07.2 | Extreme immaturity of newborn | NON-BILLABLE CODE |
| P07.20 | Extreme immaturity of newborn, unspecified weeks of gestation | BILLABLE CODE |
| P07.21 | Extreme immaturity of newborn, gestational age less than 23 completed weeks | BILLABLE CODE |
| P07.22 | Extreme immaturity of newborn, gestational age 23 completed weeks | BILLABLE CODE |
| P07.23 | Extreme immaturity of newborn, gestational age 24 completed weeks | BILLABLE CODE |
| P07.24 | Extreme immaturity of newborn, gestational age 25 completed weeks | BILLABLE CODE |
| P07.26 | Extreme immaturity of newborn, gestational age 27 completed weeks | BILLABLE CODE |
| P07.3 | Preterm [premature] newborn [other] | NON-BILLABLE CODE |
| P07.30 | Preterm newborn, unspecified weeks of gestation | BILLABLE CODE |
| P07.31 | Preterm newborn, gestational age 28 completed weeks | BILLABLE CODE |
| P07.32 | Preterm newborn, gestational age 29 completed weeks | BILLABLE CODE |
| P07.33 | Preterm newborn, gestational age 30 completed weeks | BILLABLE CODE |
| P07.34 | Preterm newborn, gestational age 31 completed weeks | BILLABLE CODE |
| P07.35 | Preterm newborn, gestational age 32 completed weeks | BILLABLE CODE |
| P07.36 | Preterm newborn, gestational age 33 completed weeks | BILLABLE CODE |
| P07.37 | Preterm newborn, gestational age 34 completed weeks | BILLABLE CODE |
| P07.38 | Preterm newborn, gestational age 35 completed weeks | BILLABLE CODE |
| P07.39 | Preterm newborn, gestational age 36 completed weeks | BILLABLE CODE |
