ICD-10 Code B41.9 – Paracoccidioidomycosis, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B41.9 – Paracoccidioidomycosis, unspecified
What it is
B41.9 identifies paracoccidioidomycosis when the record does not specify a more detailed form. It refers to a fungal infection caused by Paracoccidioides species, with documentation limited to the unspecified diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include chronic pulmonary symptoms, mucosal lesions, skin involvement, and lymph node enlargement, but the specific presentation should be clearly documented.
When to use this code
Use B41.9 when the clinician documents paracoccidioidomycosis but does not identify a site, severity, or other subtype. It is appropriate when the chart confirms the infection, yet details are incomplete or unavailable. Do not assume a more specific code without support in the record.
Do not use for
Do not use this code if the documentation names a specific manifestation or anatomic site that has its own code. Check documentation if the record only suggests fungal infection without confirming paracoccidioidomycosis.
Coding tip
Before assigning B41.9, confirm that the provider explicitly documents paracoccidioidomycosis and that no more specific code is supported.