4A20.20

ICD-11 MMS 2026-01

Haemophagocytic syndrome associated with infection

Description

This is an uncommon hematologic disorder that, typically, clinically manifests as fever, hepatosplenomegaly, lymphadenopathy, jaundice and rash, with laboratory findings of histiocytosis, and the pathologic finding of haemophagocytosis, infection-associated.

Index terms

  • Haemophagocytic syndrome associated with infection
  • haemophagocytic histiocytosis associated with infection
  • infection-induced haemophagocytic histiocytosis

Exclusions from above levels

  • 02 – Neoplasms
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 20 – Developmental anomalies

Sibling codes

  • 4A20.21 – Haemophagocytic lymphohistiocytosis associated with a malignant disease
  • 4A20.2Y – Other specified secondary haemophagocytic lymphohistiocytosis
  • 4A20.2Z – Secondary haemophagocytic lymphohistiocytosis, unspecified

Foundation entity

Haemophagocytic syndrome associated with infection – http://id.who.int/icd/entity/778191161

Allowed postcoordination axes

Part of: 4A20.2: Secondary haemophagocytic lymphohistiocytosis › 4A20: Acquired immunodeficiencies › 04: Diseases of the immune system