Sparganosis [larval diphyllobothriasis]

This code represents sparganosis, a parasitic infection caused by the larval stage of tapeworms belonging to the genus Spirometra (formerly Diphyllobothrium). The larvae, known as spargana, typically migrate and encyst in subcutaneous tissues, muscles, or visceral organs, causing inflammatory reactions.

Use this code when documentation confirms a diagnosis of sparganosis, often identified through biopsy of a subcutaneous nodule or imaging studies revealing migrating larvae. This code is appropriate for cases where the larval form of the tapeworm is identified as the causative agent, distinguishing it from adult tapeworm infections.

• Differentiate from adult diphyllobothriasis (fish tapeworm infection), which involves the adult worm in the intestine.
• Review documentation for the specific type of parasitic infection to ensure accurate coding.
• Consider additional codes for associated symptoms or complications, such as abscess formation or neurological involvement, if present and documented.