Cutaneous chromomycosis

This code represents a chronic fungal infection of the skin and subcutaneous tissue, characterized by the development of warty, verrucous, or nodular lesions. It is caused by dematiaceous fungi, which produce dark-pigmented hyphae in tissue. The infection typically progresses slowly and can lead to significant disfigurement.

Assign this code when documentation specifies a diagnosis of cutaneous chromomycosis, also known as chromoblastomycosis. This diagnosis is typically confirmed by mycological culture, direct microscopic examination of tissue, or histopathology demonstrating characteristic muriform cells. Use this code for both initial and subsequent encounters related to this specific fungal infection.

• Differentiate from other deep fungal infections like mycetoma (B47.-) or sporotrichosis (B42.-) based on causative organism and clinical presentation.
• Ensure documentation clearly states "chromomycosis" or "chromoblastomycosis" to support this specific code.
• Consider an additional code for any associated complications, such as secondary bacterial infection (e.g., L08.9).