1F52

ICD-11 MMS 2026-01

Babesiosis

Description

A disease caused by the protozoan parasite Babesia. This disease is characterised by reproduction and lysis of erythrocytes leading to symptoms that depend on the level of parasitaemia and immune status of the infected individual. This disease may present with fever, chills, malaise, myalgia, haemolytic anaemia, shock, or may be asymptomatic. Transmission is through the bite of an infected tick (Ixodes), or vertical transmission. Confirmation is by identification of Babesia in a blood smear, or detection of antibodies against Babesia.

Index terms

  • Babesiosis
  • babesiasis
  • infection by babesia
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  • piroplasma infection
  • piroplasmosis

Inclusions

  • piroplasmosis

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

Sibling codes

  • 1F50 – Acanthamoebiasis
  • 1F51 – African trypanosomiasis
  • 1F53 – Chagas disease
  • 1F54 – Leishmaniasis
  • 1F55 – Naegleriasis
  • 1F56 – Rhinosporidiosis
  • 1F57 – Toxoplasmosis
  • 1F58 – Microsporidiosis
  • 1F5Z – Unspecified protozoal disease

Foundation entity

Babesiosis – http://id.who.int/icd/entity/1947003329

Part of: 01: Certain infectious or parasitic diseases