A79.89 Other specified rickettsioses

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 083.8 Other specified rickettsioses (approximate)

Diagnosis Index entries for A79.89

• Angiomatosis › bacillary
• Disease, diseased › rickettsial NOS › specified type NEC
• Rickettsial disease › specified type NEC
• Rickettsiosis › specified type NEC

Nearby codes

• A79.0 Trench fever
• A79.1 Rickettsialpox due to Rickettsia akari
• A79.8 Other specified rickettsioses
• A79.81 Rickettsiosis due to Ehrlichia sennetsu
• A79.82 Anaplasmosis [A. phagocytophilum]
• A79.89 Other specified rickettsioses (this code)
• A79.9 Rickettsiosis, unspecified