B00-B09: Viral infections characterized by skin and mucous membrane lesions

B07: Viral warts

Warts are small, hard lumps on the skin. Warts may occur singly or in small groups. How warts look can vary a lot. Warts often occur on the hands or feet. Your nails may also be affected. Warts can also occur on other parts of the body.

Warts are caused by viruses.