1F51.0

ICD-11 MMS 2026-01

Gambiense trypanosomiasis

Description

A disease caused by an infection with the protozoan parasite Trypanosoma brucei gambiense. This disease is characterised by fever, headache, muscle and joint aches, or malaise. This disease may also present with lymphadenopathy, weight loss, or neurological deficits. Transmission is through the bite of an infected tsetse fly. Confirmation is by identification of Trypanosoma brucei gambiense in a biopsy of the lymph node.

Inclusions

  • Infection due to Trypanosoma brucei gambiense
  • West African sleeping sickness

Exclusions from above levels

  • http://id.who.int/icd/entity/2092703582 – Protozoal intestinal infections
  • NE83.1 – Infection arising from device, implant or graft, not elsewhere classified

Child codes

  • 1F51.00 – Meningitis in Gambiense trypanosomiasis
  • 1F51.0Y – Other specified gambiense trypanosomiasis
  • 1F51.0Z – Gambiense trypanosomiasis, unspecified

Sibling codes

  • 1F51.1 – Rhodesiense trypanosomiasis
  • 1F51.Y – Other specified african trypanosomiasis
  • 1F51.Z – African trypanosomiasis, unspecified

Foundation entity

Gambiense trypanosomiasis – http://id.who.int/icd/entity/1671640403

Allowed postcoordination axes

Part of: 1F51: African trypanosomiasis › 01: Certain infectious or parasitic diseases