World Health Organization · 2026-01 · English
Immune system disorders involving white cell lineages
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
4B00Disorders of neutrophil number4B01Disorders of neutrophil function4B02Eosinopenia4B03Eosinophilia4B04Disorders with decreased monocyte counts4B05Disorders with increased monocyte counts4B06Acquired lymphopenia4B07Acquired lymphocytosis4B0YOther specified immune system disorders involving white cell lineages4B0ZImmune system disorders involving white cell lineages, unspecified© World Health Organization · CC BY-ND 3.0 IGO