2024 ICD-10-CM Diagnosis Code A75.9

by

Typhus fever, unspecified

  • A75.9 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 A75.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A75.9 – other international versions of ICD-10 A75.9 may differ.

Applicable To

  • Typhus (fever) NOS

The following code(s) above A75.9 contain annotation back-references

 that may be applicable to A75.9:

  • A00-B99  Certain infectious and parasitic diseases
  • A75  Typhus fever

Approximate Synonyms

  • Typhus fever
  • Typhus group rickettsial disease

Clinical Information

  • Group of acute, arthropod borne infections caused by rickettsiae; includes epidemic (classic or louse-borne) typhus, its recrudescent form, and murine (endemic or flea-borne) typhus; all are characterized by severe headache, chills, high fever, stupor, and rash.

ICD-10-CM A75.9 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 A75.9 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 A75.9:

  • Code First: I41

Diagnosis Index entries containing back-references to A75.9:

  • Canton fever A75.9
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
    • Canton A75.9
  • Infection, infected, infective (opportunistic) B99.9
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile) I51.4
    • in (due to)
      • typhus NEC A75.9
  • Petechial typhus A75.9
  • Tabardillo A75.9
  • Typhus (fever) A75.9
    • brain A75.9
    • cerebral A75.9
    • petechial A75.9