Acute gastroenteropathy due to other small round viruses

This code represents an acute inflammation of the stomach and small intestine caused by various small, unclassified round viruses. Patients typically present with sudden onset of vomiting, diarrhea, and abdominal pain. It is a common cause of viral gastroenteritis, distinct from those caused by rotavirus or norovirus.

Use this code when documentation specifies acute gastroenteritis due to a "small round virus" without further specification, or when testing identifies a viral agent not classified as rotavirus, norovirus, adenovirus, or other specified viral causes. This code is appropriate when the viral etiology is confirmed but falls outside more specific viral categories.

• Do not use this code if the specific viral agent (e.g., rotavirus, norovirus) is identified; use the more specific code.
• Ensure documentation clearly states "acute gastroenteropathy" or "acute gastroenteritis" and attributes it to a "small round virus" or other unspecified viral agent.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter.