Unspecified filariasis

This code represents a parasitic infection caused by various species of filarial worms, characterized by a range of clinical manifestations depending on the specific parasite and affected tissues. It encompasses conditions like lymphatic filariasis (elephantiasis), onchocerciasis (river blindness), and loiasis (African eye worm), among others.

Use this code when documentation confirms a diagnosis of filariasis but lacks specificity regarding the causative organism or the exact clinical syndrome. This is appropriate when the physician has diagnosed filariasis but further diagnostic workup is pending or inconclusive.

• Avoid using this code if a more specific filarial infection (e.g., onchocerciasis, Wuchereria bancrofti infection) is documented.
• Query the provider for more specific documentation if possible to allow for a more precise code assignment.
• Consider co-reporting codes for associated symptoms or complications, such as lymphedema (457.1) or blindness (369.x), if documented.