3A20.4

ICD-11 MMS 2026-01

Alloimmune haemolytic anaemia

Description

A disease caused by determinants such as a blood transfusion that lead to an immune response directed against the person's own red blood cells. This disease is characterised by low levels of red blood cells in the body due to abnormal destruction of the red blood cells. This disease may present with pallor, fatigue, or shortness of breath. Confirmation is by identification of low red blood cell count in a blood sample.

Index terms

  • Alloimmune haemolytic anaemia
  • Lymphocyte passenger syndrome, following organ transplantation

Excludes

  • KA84 – Haemolytic disease of fetus or newborn

Exclusions from above levels

  • 04 – Diseases of the immune system
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth or the puerperium
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  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations or chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes
  • http://id.who.int/icd/entity/1000704511 – Human immunodeficiency virus disease
  • JB64.1 – Other diseases of the blood or blood-forming organs or certain disorders involving the immune mechanism complicating pregnancy, childbirth or the puerperium

Sibling codes

  • 3A20.0 – Autoimmune haemolytic anaemia, warm type
  • 3A20.1 – Autoimmune haemolytic anaemia, cold type
  • 3A20.2 – Autoimmune haemolytic anaemia, mixed type, cold and warm
  • 3A20.3 – Paroxysmal cold haemoglobinuria
  • 3A20.5 – Evans syndrome
  • 3A20.Y – Other specified acquired haemolytic anaemia, immune
  • 3A20.Z – Acquired haemolytic anaemia, immune, unspecified

Foundation entity

Alloimmune haemolytic anaemia – http://id.who.int/icd/entity/1377507376

Part of: 3A20: Acquired haemolytic anaemia, immune › 03: Diseases of the blood or blood-forming organs