I41 vs J11.82
I41 (Myocarditis in diseases classified elsewhere) compared with J11.82 (Influenza due to unidentified influenza virus with myocarditis), 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. I41 carries an Excludes1 note covering J11.82: “influenzal (J09.X9, J10.82, J11.82)”
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
| I41Myocarditis in diseases classified elsewhere | J11.82Influenza due to unidentified influenza virus with myocarditis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | J00-J99 — Diseases of the Respiratory System (J00-J99) |
| Definition | Myocarditis in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (I41). | Influenza due to unidentified influenza virus with myocarditis is a billable ICD-10-CM diagnosis code (J11.82). |
| Includes | — | Influenzal myocarditis NOS |
| Use additional code | — | code, if applicable, to identify resistance to antimicrobial drugs (Z16.-) |
| Code first | underlying disease, such as: typhus (A75.0-A75.9) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources