4B00

ICD-11 MMS 2026-01

Disorders of neutrophil number

Index terms

  • Disorders of neutrophil number

Excludes

  • MA16.10 – Decreased white blood cell count

Exclusions from above levels

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

Child codes

Sibling codes

  • 4B01 – Disorders of neutrophil function
  • 4B02 – Eosinopenia
  • 4B03 – Eosinophilia
  • 4B04 – Disorders with decreased monocyte counts
  • 4B05 – Disorders with increased monocyte counts
  • 4B06 – Acquired lymphopenia
  • 4B07 – Acquired lymphocytosis
  • 4B0Y – Other specified immune system disorders involving white cell lineages
  • 4B0Z – Immune system disorders involving white cell lineages, unspecified

Foundation entity

Disorders of neutrophil number – http://id.who.int/icd/entity/1434413881

Allowed postcoordination axes

Part of: 04: Diseases of the immune system