Rickettsioses (A75-A79)
A75Typhus fever
Excludes 1: rickettsiosis due to Ehrlichia sennetsu (A79.81)
A75.0Epidemic louse-borne typhus fever due to Rickettsia prowazekii
› Classical typhus (fever)
› Epidemic (louse-borne) typhus
A75.1Recrudescent typhus [Brill's disease]
› Brill-Zinsser disease
A75.2Typhus fever due to Rickettsia typhi
› Murine (flea-borne) typhus
A75.3Typhus fever due to Rickettsia tsutsugamushi
› Scrub (mite-borne) typhus
› Tsutsugamushi fever
› Typhus fever due to Orientia Tsutsugamushi (scrub typhus)
A75.9Typhus fever, unspecified
› Typhus (fever) NOS
A77Spotted fever [tick-borne rickettsioses]
A77.0Spotted fever due to Rickettsia rickettsii
› Rocky Mountain spotted fever
› Sao Paulo fever
A77.1Spotted fever due to Rickettsia conorii
› African tick typhus
› Boutonneuse fever
› India tick typhus
› Kenya tick typhus
› Marseilles fever
› Mediterranean tick fever
A77.2Spotted fever due to Rickettsia siberica
› North Asian tick fever
› Siberian tick typhus
A77.3Spotted fever due to Rickettsia australis
› Queensland tick typhus
A77.4Ehrlichiosis
Excludes 1: anaplasmosis [A. phagocytophilum] (A79.82)
› rickettsiosis due to Ehrlichia sennetsu (A79.81)
A77.40Ehrlichiosis, unspecified
A77.41Ehrlichiosis chafeensis [E. chafeensis]
A77.49Other ehrlichiosis
› Ehrlichiosis due to E. ewingii
› Ehrlichiosis due to E. muris euclairensis
A77.8Other spotted fevers
› Rickettsia 364D/R. philipii (Pacific Coast tick fever)
› Spotted fever due to Rickettsia africae (African tick bite fever)
› Spotted fever due to Rickettsia parkeri
A77.9Spotted fever, unspecified
› Tick-borne typhus NOS
A78Q fever
› Infection due to Coxiella burnetii
› Nine Mile fever
› Quadrilateral fever
A79Other rickettsioses
A79.0Trench fever
› Quintan fever
› Wolhynian fever
A79.1Rickettsialpox due to Rickettsia akari
› Kew Garden fever
› Vesicular rickettsiosis
A79.8Other specified rickettsioses
A79.81Rickettsiosis due to Ehrlichia sennetsu
› Rickettsiosis due to Neorickettsia sennetsu
A79.82Anaplasmosis [A. phagocytophilum]
› Transfusion transmitted A. phagocytophilum
A79.89Other specified rickettsioses
A79.9Rickettsiosis, unspecified
› Rickettsial infection NOS