Whooping cough due to other Bordetella species w/o pneumonia

This code signifies a diagnosis of whooping cough (pertussis) caused by a Bordetella species other than Bordetella pertussis or Bordetella parapertussis, and where there is no associated pneumonia. It represents an acute respiratory infection characterized by severe coughing fits, often followed by a "whooping" sound during inspiration.

Apply this code when documentation confirms whooping cough due to an unspecified or "other" Bordetella species, such as Bordetella bronchiseptica, and explicitly states the absence of pneumonia. This diagnosis typically relies on laboratory confirmation of the causative agent.

• Ensure documentation specifies the Bordetella species is not B. pertussis or B. parapertussis.
• Confirm the absence of pneumonia; if pneumonia is present, a different code from the A37 category would be appropriate.
• Do not use this code if the Bordetella species is unidentified; use A37.90 (Whooping cough, unspecified species, without pneumonia) instead.