B73.1

What This Code Means

This is a parasitic infection caused by a worm transmitted through blackfly bites, affecting the skin and subcutaneous tissues without involving the eyes. The condition causes itching, skin nodules, and tissue damage but has not affected vision or eye structures.

Coding Tips

• •Use this code only when onchocerciasis is confirmed without any ocular manifestations; if eye involvement is present, use B73.0 instead
• •This code is typically seen in patients from endemic areas (parts of Africa, Yemen, Latin America, and Yemen); document the anatomical sites affected (skin, subcutaneous nodules) for complete clinical picture