ICD-10 Code B35.2 – Tinea manuum (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B35.2 – Tinea manuum
What it is
B35.2 identifies tinea manuum, a fungal infection of the hand, usually caused by dermatophytes. It commonly affects one hand and may occur with fungal infection elsewhere on the body.
Clinical signs
Typical findings include dry, scaly, itchy skin on the palm or between the fingers, sometimes with redness or cracking. Clinical features vary; refer to documentation if the presentation is not clearly described.
When to use this code
Use B35.2 when the provider documents tinea manuum, ringworm of the hand, or a dermatophyte infection limited to the hand. Code it when the record supports a fungal hand infection rather than eczema, dermatitis, or nonspecific rash.
Do not use for
Do not use B35.2 for fungal infection of the nails, feet, or body sites other than the hand. If the documentation only says “hand rash” or “dermatitis,” check documentation before assigning a fungal code.
Coding tip
Confirm that the provider names a dermatophyte infection of the hand before coding B35.2.