Benign neoplasm of floor of mouth

This code represents a non-cancerous growth or tumor originating from the tissues lining the bottom of the oral cavity, beneath the tongue. These benign neoplasms are typically slow-growing and do not metastasize to other parts of the body.

Apply this code when documentation clearly identifies a benign tumor located specifically on the floor of the mouth. This diagnosis is often made following a biopsy confirming the non-malignant nature of the lesion.

• Ensure the pathology report explicitly states "benign" and specifies the "floor of mouth" as the anatomical site.
• Distinguish from malignant neoplasms of the floor of mouth (C04.-) and benign neoplasms of other oral cavity sites.
• Code any associated symptoms or complications separately if documented and clinically significant.