Lasting effects or complications following an injury to the liver.
Because your rating depends on which residuals are present, the evidence that helps most is evidence that documents those specific residuals clearly.
For peritoneal adhesions (7301), records showing a healthcare provider's determination that adhesions are symptomatic and persisting or recurring matter, along with documentation of abdominal pain, nausea, vomiting, colic, constipation, or diarrhea. Records of hospitalizations for obstruction, dietary prescriptions or modifications directed by a provider, and any notes about total parenteral nutrition or inoperability support the higher levels.
For cirrhosis (7312), the MELD score recorded in clinical notes or lab reports is central. Imaging studies, biopsies, or biochemical results confirming liver dysfunction — including hyponatremia, thrombocytopenia, or coagulopathy — are required by the regulation. Records documenting ascites, hepatic encephalopathy, variceal hemorrhage, portal gastropathy, or hepatopulmonary or hepatorenal syndrome support the higher ratings.
For chronic liver disease without cirrhosis (7345), medication records showing continuous or parenteral therapy, lab and imaging results, records of weight measurements over time, and provider notes documenting fatigue, malaise, anorexia, hepatomegaly, pruritus, or arthralgia all tie directly to the rating criteria. Your own statements about how daily symptoms affect work and daily activities can help show the overall severity.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.