Mixed neonatal apnea of newborn

This code signifies a type of neonatal apnea characterized by a combination of central and obstructive components. It involves both a lack of respiratory effort (central) and an obstruction of the airway (obstructive), leading to cessation of breathing in a newborn.

Use this code when documentation explicitly states "mixed neonatal apnea" or describes episodes of apnea in a newborn with features of both central and obstructive causes. Supporting documentation includes physician notes detailing the type of apnea, polysomnography results, or other diagnostic findings confirming the mixed etiology.

• Differentiate from central (P28.3) and obstructive (P28.42) neonatal apnea; documentation must specify "mixed."
• Always sequence this code after any underlying conditions contributing to the apnea, if applicable.
• Ensure the documentation clearly indicates the newborn status, as this code is specific to the neonatal period.