A77.2 Spotted fever due to Rickettsia siberica

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

Applicable to

• North Asian tick fever
• Siberian tick typhus

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 082.2 North Asian tick fever

Diagnosis Index entries for A77.2

• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › North Asian tick-borne
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › spotted › due to Rickettsia › sibirica
• Infection, infected, infective (opportunistic) › typhus › tick-borne › North Asian
• Typhus (fever) › North Asian tick-borne
• Typhus (fever) › Siberian tick

Nearby codes

• A77 Spotted fever [tick-borne rickettsioses]
• A77.0 Spotted fever due to Rickettsia rickettsii
• A77.1 Spotted fever due to Rickettsia conorii
• A77.2 Spotted fever due to Rickettsia siberica (this code)
• A77.3 Spotted fever due to Rickettsia australis
• A77.4 Ehrlichiosis
• A77.40 Ehrlichiosis, unspecified
• A77.41 Ehrlichiosis chaffeensis [E. chaffeensis]
• A77.49 Other ehrlichiosis