1F2D.1

ICD-11 MMS 2026-01

Malassezia folliculitis

Description

Malassezia folliculitis is caused by the invasion of the hair follicle by Malassezia yeasts. Although Malassezia yeasts are a part of the normal human microflora, under certain conditions they can cause superficial dermatological conditions. The invasion results in the development of erythematous papules, and sometimes pustules, which may be either asymptomatic or itchy. Usually Malassezia yeasts are present along with staphylococci and propionibacteria in the follicles.

Index terms

  • Malassezia folliculitis
  • Pityrosporum folliculitis
  • Seborrhoeic folliculitis

Inclusions

  • Seborrhoeic folliculitis

Excludes

Exclusions from above levels

  • 1F23 – Candidosis
  • 1F28 – Dermatophytosis
  • 2B01 – Mycosis fungoides
Show allHide
  • CA70 – Hypersensitivity pneumonitis due to organic dust
  • NE83.1 – Infection arising from device, implant or graft, not elsewhere classified

Sibling codes

  • 1F2D.0 – Pityriasis versicolor
  • 1F2D.2 – White piedra
  • 1F2D.3 – Black piedra
  • 1F2D.4 – Tinea nigra
  • 1F2D.5 – Onychomycosis due to non-dermatophyte mould
  • 1F2D.Y – Other specified non-dermatophyte superficial dermatomycoses
  • 1F2D.Z – Non-dermatophyte superficial dermatomycoses, unspecified

Foundation entity

Malassezia folliculitis – http://id.who.int/icd/entity/12958750

Part of: 1F2D: Non-dermatophyte superficial dermatomycoses › 01: Certain infectious or parasitic diseases