4B07

ICD-11 MMS 2026-01

Acquired lymphocytosis

Index terms

  • Acquired lymphocytosis
  • Reactive lymphocytosis
  • Stress lymphocytosis
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  • Hypersensitivity reactions of unspecified nature
  • Hypersensitivity NOS
  • Hypersensitivity reactions
  • disorder due to immune hypersensitivity reaction
  • hypersensitivity state
  • immune hypersensitivity disorder

Excludes

  • 2A82.0 – Chronic lymphocytic leukaemia or small lymphocytic lymphoma

Exclusions from above levels

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

Foundation children elsewhere

  • 1D81 – Infectious mononucleosis

Sibling codes

  • 4B00 – Disorders of neutrophil number
  • 4B01 – Disorders of neutrophil function
  • 4B02 – Eosinopenia
  • 4B03 – Eosinophilia
  • 4B04 – Disorders with decreased monocyte counts
  • 4B05 – Disorders with increased monocyte counts
  • 4B06 – Acquired lymphopenia
  • 4B0Y – Other specified immune system disorders involving white cell lineages
  • 4B0Z – Immune system disorders involving white cell lineages, unspecified

Foundation entity

Acquired lymphocytosis – http://id.who.int/icd/entity/1847534604

Part of: 04: Diseases of the immune system