C	C114938	Late Preterm Infant	Late Preterm Infant	Near Term Infant	An age group comprised of infants greater than or equal to 34 weeks, 0 days and less than 37 weeks, 0 days gestational age.	A newborn infant greater than or equal to 34 weeks, 0 days and less than 37 weeks, 0 days gestational age.	C16731	Newborn			C118466	Perinatal Terminology	
C	C114939	Extremely Preterm Infant	Extremely Preterm Infant	Extreme Immaturity	An age group comprised of infants less than 28 weeks, 0 days gestational age.	A newborn infant less than 28 weeks, 0 days gestational age.	C16731	Newborn			C118466	Perinatal Terminology	
C	C114947	Postterm Infant	Postterm Infant	Post Dates || Postmature	An age group comprised of infants greater than or equal to 42 weeks, 0 days gestational age.	A newborn infant greater than or equal to 42 weeks, 0 days gestational age.	C16731	Newborn			C118466	Perinatal Terminology	
C	C49642	Preterm Infant	Preterm Infant		An age group comprised of infants less than 37 weeks, 0 days gestational age.	A newborn infant less than 37 weeks, 0 days gestational age.	C16731	Newborn			C118466	Perinatal Terminology	
C	C89333	Term Infant	Term Infant	Full Term Neonate	An age group comprised of infants greater than or equal to 37 weeks, 0 days and less than or equal to 41 weeks, 6 days gestational age.	A newborn infant greater than or equal to 37 weeks, 0 days and less than or equal to 41 weeks, 6 days gestational age.	C16731	Newborn			C118466	Perinatal Terminology