| I49 | Other cardiac arrhythmias | NON-BILLABLE CODE |
| I49.0 | Ventricular fibrillation and flutter | NON-BILLABLE CODE |
| I49.01 | Ventricular fibrillation | BILLABLE CODE |
| I49.02 | Ventricular flutter | BILLABLE CODE |
| I49.1 | Atrial premature depolarization | BILLABLE CODE |
| I49.2 | Junctional premature depolarization | BILLABLE CODE |
| I49.3 | Ventricular premature depolarization | BILLABLE CODE |
| I49.4 | Other and unspecified premature depolarization | NON-BILLABLE CODE |
| I49.40 | Unspecified premature depolarization | BILLABLE CODE |
| I49.5 | Sick sinus syndrome | BILLABLE CODE |
| I49.8 | Other specified cardiac arrhythmias | BILLABLE CODE |
| I49.9 | Cardiac arrhythmia, unspecified | BILLABLE CODE |
