D84.1 is the ICD-10 code for Defects in the complement system. It is a four-character subcategory of D84 (Other immunodeficiencies), 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 D84.1 includes
Conditions and terms that are coded here.
- C1 esterase inhibitor [C1-INH] deficiency
D84.1 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
D84.1Defekt i komplementsystemet
DD841Defekt i komplementsystemet
- DD841AHereditært angioødem
- DD841BC1-esteraseinhibitor-mangel
D84.1Komplementtijärjestelmän vajavuudet
- D84.11Perinnollinen angioödeema tyyppi I
- D84.12Perinnollinen angioödeema tyyppi II
- D84.13Perinnöllinen angioödeema tyyppi III
- D84.14Hankittu C1-esteraasin estäjän (C1-INH) puute
- D84.18Muu määritelty komplementtijärjestelmän vajavuus
- D84.19Määrittämätön komplementtijärjestelmän vajavuus
D84.1Defekte im Komplementsystem
D84.1Déficit du complément
D84.1stoornissen in complementsysteem
D84.1Defects in the complement system
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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