2024 ICD-10-CM Diagnosis Code A23.9

by

Brucellosis, unspecified

  • A23.9 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 A23.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A23.9 – other international versions of ICD-10 A23.9 may differ.

The following code(s) above A23.9 contain annotation back-references

 that may be applicable to A23.9:

  • A00-B99  Certain infectious and parasitic diseases
  • A23  Brucellosis

Approximate Synonyms

  • Brucellosis

Clinical Information

  • A gram negative bacterial infection caused by bacteria of the genus brucella. Humans are infected by ingesting unpasteurized milk or meat from infected animals. Signs and symptoms include fevers, sweating, weakness, headache, muscle pain, arthritis and anemia.
  • Infection caused by bacteria of the genus brucella mainly involving the mononuclear phagocyte system. This condition is characterized by fever, weakness, malaise, and weight loss.

ICD-10-CM A23.9 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 A23.9 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 A23.9:

  • Code First: N16

Diagnosis Index entries containing back-references to A23.9: