2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Infectious And Parasitic Diseases 001-139 > Rickettsioses And Other Arthropod-Borne Diseases 080-088 > ICD-9-CM Diagnosis 080 Louse-borne (epidemic) typhus The classic form of typhus, caused by RICKETTSIA PROWAZEKII, which is transmitted from man to man by the louse Pediculus humanus corporis. This disease is characterized by the sudden onset of intense headache, malaise, and generalized myalgia followed by the formation of a macular skin eruption and vascular and neurologic disturbances. 080 is a specific code that can be used to specify a diagnosis 080 contains 11 index entries