I49 is the ICD-10 code for Other cardiac arrhythmias. It is a three-character category divided into 8 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block I30–I52 (Other forms of heart disease) in Chapter IX, Diseases of the circulatory system.
- Code type
- Category (3 characters)
- Chapter
- IX · I00–I99
- Classification
- WHO ICD-10, 2019 version
What I49 excludes
Conditions that look similar but belong under another code.
Subcodes of I49
- I49.0Ventricular fibrillation and flutter
- I49.1Atrial premature depolarization
- I49.2Junctional premature depolarization
- I49.3Ventricular premature depolarization
- I49.4Other and unspecified premature depolarization
- I49.5Sick sinus syndrome
- I49.8Other specified cardiac arrhythmias
- I49.9Cardiac arrhythmia, unspecified
I49 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DI49Andre hjerterytmeforstyrrelser
I49Muut sydämen rytmihäiriöt
I49Sonstige kardiale Arrhythmien
I49Autres arythmies cardiaques
I49overige hartritmestoornissen
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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