ICD-11 classes
14 Diseases of the skin
Skin disorders involving specific cutaneous structures
Disorders of the epidermis and epidermal appendages
Disorders of the nail or perionychium
EE12 — Infections of the nail or perionychium
EE12.1 — Onychomycosis
1F28.1 — Dermatophytosis of nail

ICD-11 1F28.1 — Dermatophytosis of nail

Fungal infection of the nail plate due to dermatophyte fungi (tinea unguium). Infection results in a range of clinical signs including white or yellow discolouration, detachment of the plate from the nail bed (onycholysis), keratinous thickening under the nail plate (subungual hyperkeratosis) and fragility and fragmentation of the abnormal nail plate.

It includes 3 items.

  • Onychomycosis due to dermatophyte
  • Tinea unguium
  • Ringworm of nails

It excludes 2 items.

  • Onychomycosis due to non-dermatophyte mould (1F2D.5)
  • Candida onychomycosis (1F23.13)

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

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