Intestinal angiostrongyliasis

This code represents an infection of the intestines caused by the parasitic nematode Angiostrongylus costaricensis. The larvae mature in the intestinal wall, leading to inflammation, granuloma formation, and eosinophilic enteritis. Symptoms often include abdominal pain, fever, vomiting, and diarrhea.

Assign this code when documentation confirms a diagnosis of intestinal angiostrongyliasis, typically through identification of the parasite or its eggs in tissue biopsies, stool samples, or serological tests. It is appropriate for cases presenting with acute or chronic gastrointestinal symptoms linked to this specific parasitic infection.

• Differentiate from other helminthic infections affecting the intestines; ensure the specific Angiostrongylus costaricensis species is identified.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter.
• Look for documentation of diagnostic test results (e.g., biopsy, serology) confirming the presence of the parasite.