I48.9 is the ICD-10 code for Atrial fibrillation and atrial flutter, unspecified. It is a four-character subcategory of I48 (Atrial fibrillation and flutter), 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
I48.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
I48.9Uspesifisert atrieflimmer og atrieflutter
DI489Atrieflagren eller atrieflimren UNS
I48.9Määrittämätön eteisvärinä tai eteislepatus
I48.9Vorhofflimmern und Vorhofflattern, nicht näher bezeichnet
I48.9Fibrillation et flutter auriculaires, sans précision
I48.9atriumfibrilleren en -flutter, niet gespecificeerd
Listed through more specific codes:
- I48.91Unspecified atrial fibrillation
- I48.92Unspecified atrial flutter
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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