Bacterial sepsis of newborn, unspecified

This code identifies a systemic inflammatory response syndrome (SIRS) in a neonate due to a bacterial infection, where the specific type of bacteria is not documented. It signifies a severe, life-threatening condition in a newborn caused by bacterial pathogens.

Apply this code when documentation confirms a diagnosis of bacterial sepsis in a newborn, but the causative organism is not specified or identified. This is appropriate when the physician explicitly states "unspecified bacterial sepsis of newborn" or similar language without further microbiological detail.

• Always attempt to query for the specific bacterial organism if not documented, as more specific codes exist (e.g., P36.0-P36.8).
• Do not use this code if the sepsis is due to a non-bacterial pathogen; refer to codes within P37 or P39.
• Sequence this code as the principal diagnosis when it is the primary reason for admission, followed by codes for any associated manifestations or complications.