Clonorchiasis

This code represents an infection caused by the liver fluke Clonorchis sinensis, a parasitic flatworm. The infection primarily affects the bile ducts of the liver, leading to inflammation, fibrosis, and potentially more severe hepatobiliary complications. It is typically acquired through the consumption of raw or undercooked freshwater fish.

Use this code when documentation confirms a diagnosis of clonorchiasis, often supported by identification of Clonorchis sinensis eggs in stool or duodenal aspirate, or imaging findings consistent with chronic cholangitis in endemic areas. This code is appropriate for both acute and chronic presentations of the infection.

• Ensure the documentation specifies Clonorchis to differentiate from other trematode infections.
• Code any associated complications, such as cholangitis (e.g., 576.1) or cholelithiasis (e.g., 574.x), as secondary diagnoses.
• Do not confuse with other parasitic liver infections like fascioliasis (077.0) or opisthorchiasis (121.0).