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A79.9 - Rickettsiosis, unspecified


The ICD 10 Code for Rickettsiosis, unspecified is listed as A79.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: A79.9
Description: Rickettsiosis, unspecified
  • Rickettsial infection NOS
  • Viral and prion infections of the central nervous system (A80-A89)
  • Excludes1: postpolio syndrome (G14)
  • sequelae of poliomyelitis (B91)
  • sequelae of viral encephalitis (B94.1)
Diagnostic Related Groups
(MS-DRG v30.0)
867 - Other Infectious & Parasitic Diseases Diagnoses W Mcc
868 - Other Infectious & Parasitic Diseases Diagnoses W Cc
869 - Other Infectious & Parasitic Diseases Diagnoses W/o Cc/mcc
Chapter Certain infectious and parasitic diseases (A00-B99)
Block Rickettsioses (A75-A79)
Parent A79 - Other rickettsioses
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 083.9 - Rickettsiosis, unspecified (approximate)
ICD-10-CM Siblings (same level / similar specificity) of A79.9:
A79.0 - Trench fever
A79.1 - Rickettsialpox due to Rickettsia akari
A79.8 - Other specified rickettsioses