Section A75-A79Rickettsioses
  1. A77 Spotted fever [tick-borne rickettsioses]

    1. A77.0 Spotted fever due to Rickettsia rickettsii

      Inclusion term(s):

      • Rocky Mountain spotted fever
      • Sao Paulo fever
    2. A77.1 Spotted fever due to Rickettsia conorii

      Inclusion term(s):

      • African tick typhus
      • Boutonneuse fever
      • India tick typhus
      • Kenya tick typhus
      • Marseilles fever
      • Mediterranean tick fever
    3. A77.2 Spotted fever due to Rickettsia siberica

      Inclusion term(s):

      • North Asian tick fever
      • Siberian tick typhus
    4. A77.3 Spotted fever due to Rickettsia australis

      Inclusion term(s):

      • Queensland tick typhus
    5. A77.4 Ehrlichiosis

      1. A77.40 Ehrlichiosis, unspecified

      2. A77.41 Ehrlichiosis chafeensis [E. chafeensis]

      3. A77.49 Other ehrlichiosis

    6. A77.8 Other spotted fevers

    7. A77.9 Spotted fever, unspecified

      Inclusion term(s):

      • Tick-borne typhus NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.