I48.19 vs I48.20
I48.19 (Other persistent atrial fibrillation) compared with I48.20 (Chronic atrial fibrillation, unspecified), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. I48.20 carries an Excludes1 note covering I48.19: “Chronic persistent atrial fibrillation (I48.19)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| I48.19Other persistent atrial fibrillation | I48.20Chronic atrial fibrillation, unspecified | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Other persistent atrial fibrillation is a billable ICD-10-CM diagnosis code (I48.19). | Chronic atrial fibrillation, unspecified is a billable ICD-10-CM diagnosis code (I48.20). |
| Includes | Chronic persistent atrial fibrillation Persistent atrial fibrillation, NOS | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources