I33.9 is the ICD-10 code for Acute endocarditis, unspecified. It is a four-character subcategory of I33 (Acute and subacute endocarditis), the most specific level in the WHO edition. It belongs to the block I30–I52 (Other forms of heart disease) in Chapter IX, Diseases of the circulatory system.
- Code type
- Subcategory (4 characters)
- Chapter
- IX · I00–I99
- Classification
- WHO ICD-10, 2019 version
What I33.9 includes
Conditions and terms that are coded here.
- Endocarditis
- acute or subacute
- Myoendocarditis
- acute or subacute
- Periendocarditis
- acute or subacute
I33.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
I33.9Uspesifisert akutt ikke-revmatisk endokarditt
DI339Akut endokarditis UNS
I33.9Tuntemattoman tekijän aiheuttama akuutti tai puoliakuutti sydämen sisäkalvon tulehdus
I33.9Akute Endokarditis, nicht näher bezeichnet
I33.9Endocardite aigüe, sans précision
I33.9acute endocarditis, niet-gespecificeerd
I33.9Acute and subacute endocarditis, 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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