To date, a number of studies have been conducted on the relationship of HCV genotypes with complications such as liver cirrhosis, hepatocellular carcinoma, but research on the correlation of the genotype with extrahepatic clinical manifestations associated with HCV, especially rheumatic manifestations, is insufficient. The purpose of the study is to analyze the most common genotypes of viral hepatitis C in the Republic of Uzbekistan and study their correlation with rheumatic manifestations of HCV. Methods: This study involved 88 patients with HCV infection who received inpatient and subsequent ambulatornoe treatment in Scientific Research Institute of Epidemiology, Microbiology and Infectious diseases of the Republic of Uzbekistan. Diagnostics procedures at the initial level included a set of studies, i. e. clinical, rheumatological and laboratory studies, ultrasound of the joint. In addition, 88 samples of RNA - positive serum from patients diagnosed with HCV were genotyped. Results: the Results showed that genotype 1 of HCV (subtype 1b) is the main genetic variant of HCV in Uzbekistan. Based on the results obtained, the genotypic features of viruses can be markers of the development of extrahepatic clinical manifestations. There is a reliable direct correlation between the incidence and severity of associated arthritis in patients with chronic viral hepatitis C with genotype 1b of the virus according to our research. Conclusions: The results of the study can be provided to help the doctor of the polyclinic service as recommendations that patients with the 1b genotype of the virus have a greater adherence to associated arthritis, and in this case, timely targeted consultation of a specialist is necessary.