Both the enterically transmitted forms of viral hepatitis, hepatitis A and E are self-limited and do not cause chroni chepatitis. Chronic hepatitis occurs in patients with hepatitis B and C as well as in patients with chronic hepatitis D superimposed on chronic hepatitis B. Chronic hepatitis such as hepatitis B or C is important in terms of insurance underwriting and claims. General review of hepatitis B and C was performed in this article.

Chronic thromboembolic pulmonary hypertension(CTEPH) is known as class IV pulmonary hypertension. Unlike other subtype of pulmonary hypertension, surgical treatment such as pulmonary endarterectomy is well known therapeutic strategy. Also there's oral disease-modifying drug which is developed lately. According to recent article, the prognosis of CTEPH is markedly improved. If prognosis of certain disease is improved, insurance rating should be altered. Whether rating change is necessary or not, mortality analysis of CTEPH was performed from recently published source article, Estimated extra-risks are MR of 525% and EDR of 37‰. In conclusion, the extra-risks of CTEPH are still very high.