A79.0 Trench fever

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

Applicable to

• Quintan fever
• Wolhynian fever

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 083.1 Trench fever

Diagnosis Index entries for A79.0

• Disease, diseased › His (-Werner) (trench fever)
• Disease, diseased › Werner-His (trench fever)
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › five day
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › Meuse
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › quintan
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › shin-bone
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › trench
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › Volhynian
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › Wolhynian
• His-Werner disease
• Infection, infected, infective (opportunistic) › trench fever
• Quintan fever
• Trench › fever
• Volhynian fever
• Werner-His disease
• Wolhynian fever

Nearby codes

• A79 Other rickettsioses
• A79.0 Trench fever (this code)
• 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