2024 ICD-10-CM Diagnosis Code A27.9

by

Leptospirosis, unspecified

  • A27.9 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 A27.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A27.9 – other international versions of ICD-10 A27.9 may differ.

The following code(s) above A27.9 contain annotation back-references

 that may be applicable to A27.9:

  • A00-B99  Certain infectious and parasitic diseases

Approximate Synonyms

  • Leptospirosis

Clinical Information

  • A contagious bacterial infection caused by spirochetes of the genus leptospira. Humans are infected by contact with water and soil which have been contaminated with animal waste products. The signs and symptoms include an initial flu-like phase, followed by a second phase in which patients may develop meningitis, liver failure and renal failure.
  • Infections with bacteria of the genus leptospira.

ICD-10-CM A27.9 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 A27.9 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

Diagnosis Index entries containing back-references to A27.9: