ICD-11 classes
01 Certain infectious or parasitic diseases
1F28 — Dermatophytosis

ICD-11 1F28 — Dermatophytosis

Dermatophytosis (tinea, ringworm) is a superficial infection of the skin, hair or nails by dermatophyte fungi of the genera Trichophyton, Epidermophyton or Microsporum. These fungi normally invade only the outer keratinous layer of the epidermis (stratum corneum), the hair shaft and the nail. They count amongst the commonest infections in man. Some species (e.g. Trichophyton rubrum) are essentially anthropophilic and infect only man whereas others are zoophilic (e.g. Trichophyton verrucosum) but may cause human infection from contact with infected animals.

It includes 1 item.

  • Infections due to species of Epidermophyton, Microsporum and Trichophyton

It excludes 2 items.

  • Tinea nigra (1F2D.4)
  • Tinea versicolor (1F2D.0)

Diagnosis with code 1F28 contains 8 clarifying diagnoses:

  1. 1F28.0 — Dermatophytosis of scalp
  2. 1F28.1 — Dermatophytosis of nail
  3. 1F28.2 — Dermatophytosis of foot
  4. 1F28.3 — Genitocrural dermatophytosis
  5. 1F28.4 — Kerion
  6. 1F28.5 — Disseminated dermatophytosis
  7. 1F28.Y — Other specified dermatophytosis
  8. 1F28.Z — Dermatophytosis, unspecified

The diagnosis is coded elsewhere:

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