|  I49 |  | Other cardiac arrhythmias   | 
	
		|  |  | 
	
		| CodeFirst | cardiac arrhythmia complicating: abortion or ectopic or molar pregnancy (O00-O07, O08.8)
 obstetric surgery and procedures (O75.4)
 
 |  
		| Excludes2 | bradycardia NOS (R00.1) neonatal dysrhythmia (P29.1-)
 sinoatrial bradycardia (R00.1)
 sinus bradycardia (R00.1)
 vagal bradycardia (R00.1)
 
 |  | 
|  |  | 
	
		|  I49.0 |  | Ventricular fibrillation and flutter |  |  |  | 
	
		|  I49.01 |  | Ventricular fibrillation |  |  |  |  | 
	
		|  I49.02 |  | Ventricular flutter |  |  | 
|  |  | 
	
		|  I49.1 |  | Atrial premature depolarization |  
		|  |  |  |  | 
|  |  | 
	
		|  I49.2 |  | Junctional premature depolarization |  | 
|  |  | 
	
		|  I49.3 |  | Ventricular premature depolarization |  | 
|  |  | 
	
		|  I49.4 |  | Other and unspecified premature depolarization |  |  |  | 
	
		|  I49.40 |  | Unspecified premature depolarization |  
		|  |  |  |  |  |  |  | 
	
		|  I49.49 |  | Other premature depolarization |  
		|  |  | 
| Ectopic beats |  | Extrasystoles |  | Extrasystolic arrhythmias |  | Premature contractions |  |  |  | 
|  |  | 
	
		|  I49.5 |  | Sick sinus syndrome |  
		|  |  | 
| Tachycardia-bradycardia syndrome |  |  | 
|  |  | 
	
		|  I49.8 |  | Other specified cardiac arrhythmias |  
		|  |  | 
| Brugada syndrome |  | Coronary sinus rhythm disorder |  | Ectopic rhythm disorder |  | Nodal rhythm disorder |  |  | 
|  |  | 
	
		|  I49.9 |  | Cardiac arrhythmia, unspecified |  
		|  |  |  |  |