| Recommended Mapping (based on statistical analysis) |
| Source ICD-9 | Mapping Type | Target ICD-10 |
| 42731 (Diagnosis) - Atrial fibrillation | Single To Single | I4891 (Diagnosis) - Unspecified atrial fibrillation |
| CMS/CDC General Equivalence Mappings |
| 42731 (Diagnosis) - Atrial fibrillation | Single To Single | Alternative #1: I4891 (Diagnosis) - Unspecified atrial fibrillation |
Single To Single | Alternative #2: I480 (Diagnosis) - Paroxysmal atrial fibrillation | Single To Single | Alternative #3: I481 (Diagnosis) - Persistent atrial fibrillation | Single To Single | Alternative #4: I482 (Diagnosis) - Chronic atrial fibrillation |