A08.4

What This Code Means

A viral infection of the intestines that causes inflammation and digestive symptoms, but the specific virus responsible has not been identified or documented. This is a general diagnosis used when a patient has clear signs of viral gastroenteritis without confirmation of which virus is causing it.

Coding Tips

• •Use this code only when the specific viral agent cannot be determined; if the causative virus is identified (such as rotavirus, norovirus, or enterovirus), use the more specific code instead
• •This code is appropriate for cases where viral etiology is suspected or confirmed but the particular virus remains unspecified, and should be accompanied by documentation of gastrointestinal symptoms when applicable