Crimean hemorrhagic fever [CHF Congo virus]

This code represents Crimean-Congo Hemorrhagic Fever (CCHF), a severe, tick-borne viral hemorrhagic fever caused by the Nairovirus. It is characterized by sudden onset of fever, myalgia, headache, and gastrointestinal symptoms, progressing to hemorrhagic manifestations such as petechiae, ecchymoses, epistaxis, and internal bleeding. The disease carries a high case fatality rate.

Use this code for confirmed cases of CCHF, typically diagnosed through serological testing (e.g., ELISA for IgM/IgG antibodies) or viral RNA detection (e.g., RT-PCR). It is appropriate for patients presenting with the characteristic clinical syndrome and a history of exposure in endemic areas or tick bites. Documentation should clearly state the diagnosis of Crimean-Congo Hemorrhagic Fever.

• Ensure documentation specifies "Crimean-Congo" hemorrhagic fever to differentiate from other viral hemorrhagic fevers.
• Consider co-reporting codes for specific hemorrhagic manifestations (e.g., epistaxis, gastrointestinal hemorrhage) if documented.
• This code is specific to the viral etiology; do not use for hemorrhagic fevers of unknown or other specified causes.