World Health Organization · 2026-01 · English
4A01 Primary immunodeficiencies due to disorders of adaptive immunity
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
4A01.0Immunodeficiencies with predominantly antibody defects4A01.1Combined immunodeficiencies4A01.2Diseases of immune dysregulation4A01.3Other well-defined immunodeficiency syndromes due to defects in adaptive immunity4A01.ZPrimary immunodeficiencies due to disorders of adaptive immunity, unspecified© World Health Organization · CC BY-ND 3.0 IGO