Balantidiasis

This code represents an infection caused by the ciliate protozoan Balantidium coli, primarily affecting the large intestine. It typically manifests as balantidial dysentery, characterized by diarrhea, abdominal pain, and tenesmus, but can also present as asymptomatic carriage or, rarely, extraintestinal disease.

Assign this code when documentation confirms a diagnosis of balantidiasis, often identified through microscopic examination of stool samples revealing Balantidium coli trophozoites or cysts. It is appropriate for both symptomatic infections and asymptomatic carriers identified through screening or contact tracing.

• Differentiate from other parasitic intestinal infections; specific identification of Balantidium coli is crucial.
• This code is specific to the causative organism; do not use for non-specific gastroenteritis or colitis.
• Consider sequencing with codes for associated symptoms or complications if documented, such as dehydration or abdominal pain.