Boutonneuse fever

Boutonneuse fever is a tick-borne rickettsial infection caused by Rickettsia conorii. It is characterized by a sudden onset of fever, headache, myalgia, and a maculopapular rash that often includes a distinctive "tache noire" (black spot) at the site of the tick bite. This condition is endemic to the Mediterranean basin, Africa, and parts of Asia.

This code is used when a patient presents with clinical signs and symptoms consistent with Boutonneuse fever, particularly following exposure to ticks in endemic regions. Documentation should clearly indicate a diagnosis of Boutonneuse fever, often supported by serological testing or identification of the characteristic tache noire.

• Ensure documentation specifies "Boutonneuse fever" to differentiate from other rickettsial infections.
• Consider co-coding for the tick bite (e.g., E906.0 for tick bite, if applicable and documented).
• Review the patient's travel history and exposure to ticks, as this is crucial supporting documentation.