Benign neoplasm of thymus

This code signifies the presence of a non-cancerous growth originating from the thymus gland. These are typically slow-growing masses that do not spread to other parts of the body.

Apply this code when documentation confirms a benign thymic tumor, often identified incidentally on imaging or during workup for other conditions. Pathological confirmation of benignity is usually available.

• Ensure the pathology report explicitly states "benign" for the thymic neoplasm.
• Do not use this code if the tumor is identified as a carcinoid, even if benign.
• Consider additional codes for any associated symptoms or conditions, such as myasthenia gravis, if documented.