Diphyllobothriasis, intestinal

This code identifies an intestinal infection caused by the Diphyllobothrium latum tapeworm, commonly known as the broad fish tapeworm. The parasite resides in the small intestine, where it can grow to a significant length and absorb nutrients, potentially leading to various gastrointestinal and systemic symptoms.

Use this code when documentation confirms a diagnosis of diphyllobothriasis, typically identified through the presence of tapeworm eggs or proglottids in stool samples. It is appropriate for cases where the infection is localized to the intestinal tract.

• Ensure documentation specifies "intestinal" involvement to differentiate from other potential Diphyllobothrium manifestations.
• Consider co-occurring conditions such as megaloblastic anemia, which can be a complication of chronic diphyllobothriasis, and code them separately.
• Do not confuse with other helminthic infections; confirm the specific Diphyllobothrium species if possible, though this code is broad for the genus.