Other fluke infections (B66)
The ICD-10 code section B66 covers a variety of other fluke infections, which are parasitic diseases caused by different types of flukes, also known as trematodes. These codes help identify specific fluke infections such as opisthorchiasis, clonorchiasis, fascioliasis, and paragonimiasis, each caused by distinct parasite species.
This section includes codes like B66.0 for Opisthorchiasis, also known as infection by Opisthorchis species; B66.1 for Clonorchiasis, which may involve biliary cirrhosis or bile duct fibrosis; and B66.3 for Fascioliasis, commonly caused by the sheep liver fluke. Additionally, B66.4 codes for Paragonimiasis, a lung and sometimes extrapulmonary infection, while B66.5 is for Fasciolopsiasis, an intestinal fluke infection. B66.8 covers other specified fluke infections caused by a wide range of less common parasites, and B66.9 is used when the fluke infection is unspecified, including general liver fluke or trematode infections. Using these codes ensures accurate classification of parasitic fluke diseases in medical records and billing.
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Clonorchiasis
Infection of the biliary passages with CLONORCHIS SINENSIS, also called Opisthorchis sinensis. It may lead to inflammation of the biliary tract, proliferation of biliary epithelium, progressive portal fibrosis, and sometimes bile duct carcinoma. Extension to the liver may lead to fatty changes and cirrhosis. (From Dorland, 27th ed)
Clonorchis sinensis
A species of trematode flukes of the family Opisthorchidae. Many authorities consider this genus belonging to Opisthorchis. It is common in China and other Asiatic countries. Snails and fish are the intermediate hosts.
Dicrocoeliasis
Infection with flukes of the genus Dicrocoelium.
Echinostomiasis
Infection by flukes of the genus Echinostoma.
Fascioliasis
Liver disease caused by infections with parasitic flukes of the genus FASCIOLA, such as FASCIOLA HEPATICA.
Opisthorchiasis
Infection with flukes of the genus Opisthorchis.
Paragonimiasis
Infection with TREMATODA of the genus PARAGONIMUS.
