I48.4 is the ICD-10 code for Atypical atrial flutter. 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
What I48.4 includes
Conditions and terms that are coded here.
- Type II atrial flutter
I48.4 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
I48.4Atypisk atrieflutter
DI484Atypisk atrieflagren
I48.4Epätyypillinen eteislepatus
I48.4Vorhofflattern, atypisch
I48.4Flutter auriculaire atypique
I48.4atypische atriumflutter
I48.4Atypical 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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