1D81

ICD-11 MMS 2026-01

Infectious mononucleosis

Description

A disease typically caused by an infection with Epstein-Barr virus or cytomegalovirus. This disease commonly presents with extreme fatigue, fever, acute pharyngitis, body aches, or lymphadenopathy. Transmission is by direct contact with infected body fluids, commonly through saliva.

Inclusions

  • Gammaherpesviral mononucleosis
  • Glandular fever

Exclusions from above levels

  • NE83.1 – Infection arising from device, implant or graft, not elsewhere classified

Child codes

  • 1D81.0 – Mononucleosis due to Epstein-Barr virus
  • 1D81.1 – Mononucleosis due to cytomegalovirus
  • 1D81.Y – Other specified infectious mononucleosis
  • 1D81.Z – Infectious mononucleosis, unspecified

Sibling codes

  • 1D80 – Mumps
  • 1D82 – Cytomegaloviral disease
  • 1D83 – Epidemic myalgia
  • 1D84 – Viral conjunctivitis
  • 1D85 – Viral carditis
  • 1D86 – Viral haemorrhagic fever, not elsewhere classified
  • 1E1Y – Other specified viral diseases
  • 1E1Z – Unspecified viral disease

Foundation entity

Infectious mononucleosis – http://id.who.int/icd/entity/760139952

Part of: 01: Certain infectious or parasitic diseases