Intestinal capillariasis

This code represents an infection of the human intestine caused by the nematode Capillaria philippinensis. This parasitic infection leads to chronic diarrhea, abdominal pain, malabsorption, and significant weight loss. If left untreated, it can be fatal due to severe fluid and electrolyte imbalance.

Use this code when documentation confirms a diagnosis of intestinal capillariasis, typically identified through microscopic examination of stool samples revealing Capillaria philippinensis eggs, larvae, or adult worms. This code is appropriate for patients presenting with chronic gastrointestinal symptoms in endemic areas or with a history of travel to such regions.

• Differentiate from other parasitic intestinal infections; ensure the specific causative agent Capillaria philippinensis is documented.
• Review documentation for specific symptoms (e.g., chronic diarrhea, malabsorption) that support the diagnosis.
• Remember the Excludes2 note for hepatic capillariasis, which is coded separately.