Compliance, Regulatory & Policies -
Policy, Billing, or Coverage Update -
2025
Reimbursement Policy: PO-RE-020 Onychomycosis Testing
Onychomycosis, also known as tinea unguium, is a fungal infection of the nail typically caused by pathogenic fungal dermatophytes, such as Trichophyton rubrum, Trichophyton mentagrophytes, and Epidermophyton floccossum; onychomycosis may also be caused by yeasts, including Candida parapsilosis and Candida guilliermondii, or non-dermatophyte molds, including Neoscytalidium dimidiatum, Onychocola canadensis, the Aspergillus species, Scopulariopsis species, Alternaria species, Acremonium species, and Fusarium species.
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