4B00.01

ICD-11 MMS 2026-01

Acquired neutropaenia

Index terms

  • Acquired neutropaenia
  • Acquired neutropaenia NOS
  • Immunologic neutropaenias
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  • Adult idiopathic neutropaenia
  • Secondary agranulocytosis
  • Drug-induced secondary agranulocytosis
  • drug-induced neutropaenia
  • medicament-induced secondary agranulocytosis
  • Toxic secondary agranulocytosis
  • toxic neutropaenia
  • neutropaenia associated with T-cell large granular lymphocyte leukaemia
  • T-cell LGL leukaemia
  • T-cell chronic lymphocytic leukaemia
  • Acquired agranulocytosis

Inclusions

  • Adult idiopathic neutropaenia

Exclusions from above levels

  • MA16.10 – Decreased white blood cell count
  • 02 – Neoplasms
  • 18 – Complications of pregnancy, childbirth and the puerperium
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  • 20 – Developmental anomalies

Sibling codes

  • 4B00.00 – Constitutional neutropaenia
  • 4B00.0Z – Neutropaenia, unspecified

Foundation entity

Acquired neutropaenia – http://id.who.int/icd/entity/348671706

Allowed postcoordination axes

Part of: 4B00.0: Neutropaenia › 4B00: Disorders of neutrophil number › 04: Diseases of the immune system