The outcome of chronic HBV infection is variable; approximately one half of individuals transition to an inactive carrier state, 30% progress to cirrhosis, and the remainder to chronic hepatitis. Ten different HBV genotypes and many subtypes have been identified with distinct geographical distributions. Over the years, a lot of studies presented the efficiency of different genotyping methods; for this reason we aimed to present a cost efficient genotyping diagnosis algorithm of CHB infected patients, especially useful to identify those at risk of disease progression and determine optimal anti-viral therapy as useful instrument for physicians.