Preterm [premature] newborn [other] Notes: 28 completed weeks or more but less than 37 completed weeks (196 completed days but less than 259 completed days) of gestation. ; Prematurity NOS ; Preterm newborn, gestational age 28 weeks, 0 days through 28 weeks, 6 days ; Preterm newborn, gestational age 29 weeks, 0 days through 29 weeks, 6 days ; Preterm newborn, gestational age 30 weeks, 0 days through 30 weeks, 6 days ; Preterm newborn, gestational age 31 weeks, 0 days through 31 weeks, 6 days ; Preterm newborn, gestational age 32 weeks, 0 days through 32 weeks, 6 days ; Preterm newborn, gestational age 33 weeks, 0 days through 33 weeks, 6 days ; Preterm newborn, gestational age 34 weeks, 0 days through 34 weeks, 6 days ; Preterm newborn, gestational age 35 weeks, 0 days through 35 weeks, 6 days ; Preterm newborn, gestational age 36 weeks, 0 days through 36 weeks, 6 days