14Diseases of the skin Skin disorders involving specific cutaneous structures Disorders of the epidermis or epidermal appendages Disorders of the nail or perionychium EE12Infections of the nail or perionychium
EE12.1
category
Onychomycosis
Definition Fungal infection of fingernails and/or toenails due most commonly to dermatophytes (tinea unguium) or yeasts, especially Candida species.
Inclusions
Fungal infection of the nails Also indexed as
Distal and lateral subungual onychomycosis Fungal infection of the nails Onychomycosis Onychomycosis classified according to clinical pattern Proximal subungual onychomycosis Superficial white onychomycosis Total dystrophic onychomycosis
Nearby in Infections of the nail or perionychium
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
View this entity in the official WHO ICD-11 browser .
This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
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