B43.9
✓ BillableChromomycosis, unspecified
Certain infectious and parasitic diseases (A00-B99)
Clinical Description
ICD-10-CM code B43.9 represents chromomycosis, unspecified. This code falls under the Certain infectious and parasitic diseases (A00-B99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code B43.9?
ICD-10-CM code B43.9 is "Chromomycosis, unspecified". It belongs to the category: Certain infectious and parasitic diseases (A00-B99).
Is B43.9 a billable ICD-10 code?
Yes, B43.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Related Codes in B43
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)