ED63.1

ICD-11 MMS 2026-01

Hypomelanosis due to exposure to chemicals

Description

Loss of skin pigment due to exposure to depigmenting agents such as hydroquinone, which is frequently employed as a cosmetic skin lightener, and industrial chemicals such as 4-tert-butylcatechol (PTBC) and para-substituted phenols (PSP).

Index terms

  • Hypomelanosis due to exposure to chemicals

Sibling codes

  • ED63.0 – Vitiligo
  • ED63.2 – Postinflammatory hypomelanosis
  • ED63.3 – Vogt-Koyanagi-Harada syndrome
  • ED63.Y – Acquired hypomelanosis due to other specified disorder
  • ED63.Z – Acquired hypomelanosis of unknown or unspecified aetiology

Foundation entity

Hypomelanosis due to exposure to chemicals – http://id.who.int/icd/entity/32535219

Allowed postcoordination axes

Part of: ED63: Acquired hypomelanotic disorders › 14: Diseases of the skin