2024 ICD-10-CM Diagnosis Code A79.9

by

Rickettsiosis, unspecified

  • A79.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM A79.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A79.9 – other international versions of ICD-10 A79.9 may differ.

Applicable To

  • Rickettsial infection NOS

The following code(s) above A79.9 contain annotation back-references

 that may be applicable to A79.9:

  • A00-B99  Certain infectious and parasitic diseases

Approximate Synonyms

  • Disease caused by rickettsiae
  • Rickettsial infection
  • Rickettsiosis, tickborne
  • Tick-borne rickettsiosis

Clinical Information

  • Gram negative bacterial infection with the bacteria in the rickettsiales order.
  • Infections by the genus rickettsia.

ICD-10-CM A79.9 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 867 Other infectious and parasitic diseases diagnoses with mcc
  • 868 Other infectious and parasitic diseases diagnoses with cc
  • 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert A79.9 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Code annotations containing back-references to A79.9:

  • Type 1 Excludes: A49

Diagnosis Index entries containing back-references to A79.9: