3A21

ICD-11 MMS 2026-01

Acquired haemolytic anaemia, non-immune

Description

A disease caused by determinants such as infection, toxic chemicals, drugs and trauma arising after birth. This disease is characterised by haemolysis of red blood cells. This disease may present with pallor, fatigue, or shortness of breath. Confirmation is by identification of decreased red blood cell count in a blood sample and negative Coombs test result.

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

Child codes

  • 3A21.0 – Paroxysmal nocturnal haemoglobinuria
  • 3A21.1 – Microangiopathic haemolytic anaemia
  • 3A21.2 – Haemolytic uraemic syndrome
  • 3A21.Y – Other specified acquired haemolytic anaemia, non-immune
  • 3A21.Z – Acquired haemolytic anaemia, non-immune, unspecified

Sibling codes

  • 3A20 – Acquired haemolytic anaemia, immune
  • 3A2Z – Acquired haemolytic anaemia, unspecified

Foundation entity

Acquired haemolytic anaemia, non-immune – http://id.who.int/icd/entity/391831387

Allowed postcoordination axes

Part of: 03: Diseases of the blood or blood-forming organs