Congenital pneumonia due to Chlamydia

This code identifies pneumonia acquired by a neonate during or shortly after birth, specifically caused by Chlamydia trachomatis. This infection typically manifests as a subacute, afebrile pneumonia with a characteristic staccato cough, often preceded by conjunctivitis.

Apply this code when documentation explicitly states congenital or neonatal pneumonia due to Chlamydia. This diagnosis is typically supported by positive chlamydial testing (e.g., PCR, culture) from respiratory secretions in a neonate presenting with pneumonia symptoms.

• Ensure documentation specifies Chlamydia as the causative organism for neonatal pneumonia.
• Do not confuse with other forms of congenital pneumonia or chlamydial infections in older patients.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter.