A79.89
ICD-10-CMThis code represents rickettsial infections that are not otherwise specified or classified under more common rickettsioses. It encompasses a range of acute febrile illnesses caused by various Rickettsia species, often transmitted by arthropod vectors, presenting with symptoms like fever, headache, and rash.
Use this code when the medical record clearly documents a rickettsial infection, but the specific type (e.g., Rocky Mountain spotted fever, typhus) is not identified or falls outside of other defined categories. Documentation should confirm a diagnosis of rickettsiosis, often supported by laboratory findings or strong clinical suspicion in an endemic area.
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