A08.1

Acute gastrent d/t Norwalk agent and oth small round viruses Acute gastroenteropathy due to Norwalk agent and other small round viruses

Acute gastrent d/t Norwalk agent and oth small round viruses Acute gastroenteropathy due to Norwalk agent and other small round viruses: Certain infectious and parasitic diseases (ICD-10-CM A00 to B99), a category with codes of its own under it.