Whooping cough due to Bordetella parapertussis w pneumonia

This code signifies a specific type of whooping cough (pertussis) caused by the bacterium Bordetella parapertussis, which has progressed to include pneumonia. It indicates a respiratory infection characterized by severe coughing fits, often followed by a "whooping" sound, complicated by lung inflammation.

Apply this code when documentation explicitly states a diagnosis of whooping cough due to Bordetella parapertussis and also confirms the presence of pneumonia. This typically occurs in patients presenting with classic pertussis symptoms, where laboratory testing identifies B. parapertussis as the causative agent, and imaging or clinical findings confirm pneumonia.

• Ensure documentation clearly distinguishes Bordetella parapertussis from Bordetella pertussis (which causes classic pertussis).
• Verify that pneumonia is explicitly diagnosed and not just suspected or a symptom of the whooping cough itself.
• Do not use this code if the pneumonia is due to a different organism or if Bordetella pertussis is the identified pathogen.