Enterobiasis

This code represents an intestinal parasitic infection caused by the pinworm, Enterobius vermicularis. It is characterized by pruritus ani, especially nocturnal, due to the migration of female worms to the perianal region to lay eggs. While generally benign, heavy infestations can lead to secondary bacterial infections or, rarely, more severe complications.

Use this code when documentation confirms a diagnosis of pinworm infection, typically based on clinical symptoms and/or identification of eggs via the "scotch tape test." This code is appropriate for both initial diagnoses and follow-up encounters related to enterobiasis.

• Ensure documentation specifies Enterobius vermicularis to differentiate from other helminthic infections.
• Consider co-reporting codes for any associated symptoms or complications, such as pruritus or secondary skin infections.
• This code is specific to pinworm; do not use for other intestinal nematode infections.