Other viral diseases, not elsewhere classified B33- June 12, 2024 by icd10codes.in Other viral diseases, not elsewhere classified B33- Codes B33 Other viral diseases, not elsewhere classified B33.0 Epidemic myalgia B33.1 Ross River disease B33.2 Viral carditis B33.20 …… unspecified B33.21 Viral endocarditis B33.22 Viral myocarditis B33.23 Viral pericarditis B33.24 Viral cardiomyopathy B33.3 Retrovirus infections, not elsewhere classified B33.4 Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS] B33.8 Other specified viral diseases