1C32

ICD-11 MMS 2026-01

Rickettsialpox

Description

An acute febrile disease caused by Rickettsia akari, which is transmitted from its rodent host by the house-mouse mite Liponyssoides sanguineus. An initial skin lesion at the site of a mite bite, often associated with lymphadenopathy, is followed by fever; a disseminated skin rash appears, which generally does not involve the palms and the soles, and lasts only a few days. Death is uncommon.

Index terms

  • Rickettsialpox
  • Kew Gardens spotted fever
  • Rickettsia akari infection
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  • Vesicular rickettsiosis
  • rickettsia akari smallpox

Inclusions

  • Kew Gardens spotted fever

Exclusions from above levels

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

Sibling codes

  • 1C30 – Typhus fever
  • 1C31 – Spotted fever
  • 1C33 – Q fever
  • 1C3Y – Other specified rickettsioses
  • 1C3Z – Rickettsioses, unspecified

Foundation entity

Rickettsialpox – http://id.who.int/icd/entity/1005140361

Part of: 01: Certain infectious or parasitic diseases