B19 vs K77
B19 (Unspecified viral hepatitis) compared with K77 (Liver disorders in diseases classified elsewhere), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. K77 carries an Excludes2 note covering B19: “viral hepatitis (B15-B19)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| B19Unspecified viral hepatitis | K77Liver disorders in diseases classified elsewhere | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Unspecified viral hepatitis is a non-billable ICD-10-CM category code (B19). | Liver disorders in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (K77). |
| Code first | — | underlying disease, such as: amyloidosis (E85.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources