Deep seated dermatophytosis

This code signifies a severe fungal infection of the skin, hair, or nails that extends beyond the superficial layers into the dermis or subcutaneous tissue. It represents a more aggressive and often chronic form of dermatophytosis, distinct from superficial tinea infections.

Apply this code when documentation specifies a deep-seated dermatophyte infection, such as Majocchi's granuloma, deep tinea capitis, or extensive tinea corporis with follicular involvement. Supporting documentation should clearly indicate the depth of the infection, often noting nodular lesions, abscess formation, or significant inflammation.

• Differentiate from superficial dermatophytosis (e.g., tinea pedis, tinea corporis) which are coded elsewhere.
• Ensure the physician's documentation explicitly states "deep-seated" or describes clinical features indicative of deep involvement.
• Consider additional codes for any associated complications, such as bacterial superinfection or scarring.