Other superficial mycoses (B36)
This section covers the ICD-10 codes used to classify various types of superficial fungal infections of the skin and hair. These codes help identify specific conditions caused by fungi affecting the outer layers of the body, including less common infections beyond typical dermatophyte diseases.
The primary code B36 represents other superficial mycoses. Subcodes specify distinct fungal infections like B36.0 for Pityriasis versicolor, also known as Malassezia infection of skin, which causes patchy discoloration. B36.1 identifies Tinea nigra, an infection often caused by Cladosporium werneckii, appearing as dark patches on palms or soles. B36.2 and B36.3 refer to White piedra and Black piedra respectively, fungal infections of hair shafts caused by different organisms such as Trichosporon species and Piedraia. The code B36.8 covers other specified superficial mycoses, including fungal infections like neonatal cephalic pustulosis and cutaneous aspergillosis caused by various molds. Finally, B36.9 is used when the superficial fungal infection is unspecified, including chronic fungal otitis externa or fungal dermatitis. These ICD-10 codes are essential for precisely coding fungal skin infections to improve diagnosis and treatment documentation.
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Aspergillus
A genus of mitosporic fungi containing about 100 species and eleven different teleomorphs in the family Trichocomaceae.
Cerebral Phaeohyphomycosis
CNS infections caused by neurotropic dematiaceous fungi that contain melanin in their cell walls. The infections often result in BRAIN ABSCESS; ENCEPHALITIS; and MENINGITIS in patients who are often immunocompetent. The common causative fungi include members Cladophialophora bantiana, Exophiala dermatitidis, Rhinocladiella mackenziei, and Ochroconis gallopavum. R. mackenziei infection is seen almost exclusively in patients from the MIDDLE EAST.
Otomycosis
Fungus infection of the external ear, usually by ASPERGILLUS species
Phaeohyphomycosis
OPPORTUNISTIC INFECTIONS caused by the dematiaceous (darkly pigmented) MITOSPORIC FUNGI of ALTERNARIA, Bipolaris, CLADOSPORIUM, Curvularia, and EXOPHIALA. These fungi have pigmented HYPHAE due to MELANIN in the cell wall. The initial subcutaneous cyst from the infection can become systemic and spread rapidly to renal, pulmonary and cerebral systems (see CEREBRAL PHAEOHYPHOMYCOSIS) in an IMMUNOCOMPROMISED HOST.
Tinea Cruris
Fungal infection of the groin. The main causative fungus is TRICHOPHYTON.
Trichophyton
A mitosporic fungal genus and an anamorphic form of Arthroderma. Various species attack the skin, nails, and hair.
Trichosporonosis
Fungal infections caused by TRICHOSPORON that may become systemic especially in an IMMUNOCOMPROMISED HOST. Clinical manifestations range from superficial cutaneous infections to systemic lesions in multiple organs.
