Patient presents with signs and symptoms suggestive of chronic hepatitis C infection.  Presenting complaints may include fatigue, malaise, and right upper quadrant abdominal discomfort.  Physical examination may reveal hepatomegaly or splenomegaly.  Relevant laboratory findings include elevated liver enzymes (ALT, AST), positive hepatitis C antibody (anti-HCV), and detectable hepatitis C RNA (HCV RNA) viral load.  Diagnosis of chronic hepatitis C is confirmed by positive HCV RNA, indicating active viral replication.  Patient was counseled on hepatitis C transmission, prevention, and the importance of treatment adherence.  Treatment options for hepatitis C virus infection, including direct-acting antiviral agents (DAAs), were discussed, with consideration for genotype, fibrosis stage (assessed via transient elastography or liver biopsy), and potential drug interactions.  Patient education included information on the potential side effects of DAAs, the need for regular monitoring during treatment, and the goal of achieving sustained virologic response (SVR).  Follow-up appointments were scheduled for monitoring of treatment response and assessment of liver function.  ICD-10-CM code B18.2 (Chronic viral hepatitis C) is appropriate for this encounter.  Medical billing and coding will reflect the diagnostic testing and treatment plan implemented.  Differential diagnoses considered included nonalcoholic fatty liver disease (NAFLD), autoimmune hepatitis, and alcoholic liver disease.