Infection by dematiacious fungi [Phaehyphomycosis]

This code signifies a fungal infection caused by dematiaceous fungi, which are characterized by their dark-pigmented cell walls. These infections, collectively known as phaeohyphomycosis, can manifest in various forms, including superficial, cutaneous, subcutaneous, or even systemic disease.

Use this code when documentation explicitly identifies an infection due to dematiaceous fungi. This typically occurs in immunocompromised individuals or following traumatic inoculation. Supporting documentation would include mycological culture results identifying a dematiaceous fungal species or histopathological findings consistent with phaeohyphomycosis.

• Do not use for infections caused by hyaline (non-pigmented) fungi; those would fall under other mycosis categories.
• Always review the medical record for the specific type of phaeohyphomycosis (e.g., cutaneous, subcutaneous) if further specificity is available, though this code is for the general category.
• Consider an additional code to identify the site of infection if not inherently described by the fungal type.