Disorders of newborn related to short gestation and low birth weight, not elsewhere classified
Notes: Newborn birth weight 999 g. or less ; Newborn birth weight 1000-2499 g. ; Less than 28 completed weeks (less than 196 completed days) of gestation. ; Gestational age less than 28 completed weeks NOS ; Extreme immaturity of newborn, gestational age less than 23 weeks, 0 days ; Extreme immaturity of newborn, gestational age 23 weeks, 0 days through 23 weeks, 6 days ; Extreme immaturity of newborn, gestational age 24 weeks, 0 days through 24 weeks, 6 days ; Extreme immaturity of newborn, gestational age 25 weeks, 0 days through 25 weeks, 6 days ; Extreme immaturity of newborn, gestational age 26 weeks, 0 days through 26 weeks, 6 days ; Extreme immaturity of newborn, gestational age 27 weeks, 0 days through 27 weeks, 6 days ; 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 ; low birth weight due to slow fetal growth and fetal malnutrition (P05.-) ; low birth weight due to slow fetal growth and fetal malnutrition (P05.-) ; When both birth weight and gestational age of the newborn are available, both should be coded with birth weight sequenced before gestational age