Immune system disorders involving white cell lineages

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

code elsewhere

• Immunodeficiencies with predominantly antibody defects  (4A01.0)
• Combined immunodeficiencies  (4A01.1)
• Defects in the complement system  (4A00.1)
• Diseases of immune dysregulation  (4A01.2)
• Other well-defined immunodeficiency syndromes due to defects in adaptive immunity  (4A01.3)

sections/codes in this section (4B00-4B0Z)

• Disorders of neutrophil number  (4B00)
• Disorders of neutrophil function  (4B01)
• Eosinopenia  (4B02)
• Eosinophilia  (4B03)
• Disorders with decreased monocyte counts  (4B04)
• Disorders with increased monocyte counts  (4B05)
• Acquired lymphopenia  (4B06)
• Acquired lymphocytosis  (4B07)
• Other specified immune system disorders involving white cell lineages  (4B0Y)
• Immune system disorders involving white cell lineages, unspecified  (4B0Z)

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