D89.9 is the ICD-10 code for Disorder involving the immune mechanism, unspecified. It is a four-character subcategory of D89 (Other disorders involving the immune mechanism, not elsewhere classified), the most specific level in the WHO edition. It belongs to the block D80–D89 (Certain disorders involving the immune mechanism) in Chapter III, Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
- Code type
- Subcategory (4 characters)
- Chapter
- III · D50–D89
- Classification
- WHO ICD-10, 2019 version
What D89.9 includes
Conditions and terms that are coded here.
- Immune disease NOS
D89.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
D89.9Uspesifisert tilstand som angår immunsystemet
DD899Sygdom i immunsystemet UNS
- DD899AAutoinflammatorisk sygdom UNS
D89.9Määrittämättömät immuunimekanismiin kohdistuvat sairaudet
D89.9Störung mit Beteiligung des Immunsystems, nicht näher bezeichnet
D89.9Anomalie du système immunitaire, sans précision
D89.9aandoening waarbij immuunsysteem betrokken is, niet-gespecificeerd
D89.9Disorder involving the immune mechanism, unspecified
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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