All Certain Conditions Originating in the Perinatal Period

Extreme immaturity of newborn, gestational age less than 23 completed weeks

Extreme immaturity of newborn, gestational age 23 completed weeks

Extreme immaturity of newborn, gestational age 24 completed weeks

Extreme immaturity of newborn, gestational age 25 completed weeks

Other low birth weight newborn, 1250-1499 grams

Other low birth weight newborn, 1000-1249 grams

Newborn small for gestational age, other

Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational age

Newborn affected by slow intrauterine growth, unspecified

Extremely low birth weight newborn, unspecified weight