Anisakiasis

This code represents anisakiasis, a parasitic infection caused by the ingestion of raw or undercooked seafood containing Anisakis larvae. The larvae typically invade the gastrointestinal tract, leading to symptoms such as abdominal pain, nausea, vomiting, and diarrhea. In some cases, the larvae can penetrate the stomach or intestinal wall, causing more severe complications.

Assign this code when documentation confirms a diagnosis of anisakiasis, often following a history of consuming raw or undercooked fish or cephalopods. This includes cases where larvae are endoscopically visualized and removed, or when serological tests confirm the presence of Anisakis antibodies in symptomatic patients.

• Ensure documentation specifies Anisakis infection; do not use for other parasitic worm infections.
• Consider any associated gastrointestinal symptoms or complications for additional coding.
• Review patient history for consumption of raw or undercooked seafood to support the diagnosis.