I82.0 vs K76.5
I82.0 and K76.5 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on K76.5
Budd-Chiari syndrome (I82.0)
I82.0
Budd-Chiari syndrome
Billable
- Chapter 9
- Diseases of the circulatory system
- Section
- I80-I89
Use when the record says
- Hepatic vein thrombosis
Indexed under
- Budd-Chiari syndrome (hepatic vein thrombosis)
- Block, blocked › hepatic vein
- Chiari's › disease or syndrome
- Disease, diseased › Chiari's
- Embolism › hepatic (multiple) (paradoxical)
K76.5
Hepatic veno-occlusive disease
Billable
- Chapter 11
- Diseases of the digestive system
- Section
- K70-K77
Indexed under
- Disease, diseased › liver › veno-occlusive
These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027