2024 ICD-10-CM Diagnosis Code B43.9

by

Chromomycosis, unspecified

  • B43.9 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 B43.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B43.9 – other international versions of ICD-10 B43.9 may differ.

The following code(s) above B43.9 contain annotation back-references

 that may be applicable to B43.9:

  • A00-B99  Certain infectious and parasitic diseases
  • B35-B49  Mycoses

Approximate Synonyms

  • Chromoblastomycosis
  • Chromoblastomycosis infection

Clinical Information

  • Scaly papule or warty growth, caused by five fungi, that spreads as a result of satellite lesions affecting the foot or leg. The extremity may become swollen and, at its distal portion, covered with various nodular, tumorous, verrucous lesions that resemble cauliflower. In rare instances, the disease may begin on the hand or wrist and involve the entire upper extremity. (Arnold, Odom, and James, Andrew’s Diseases of the Skin, 8th ed, p362)

ICD-10-CM B43.9 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 B43.9 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 B43.9: