Malignant neoplasm of right olfactory nerve

This code signifies a primary cancerous tumor originating in the right olfactory nerve. This nerve is responsible for the sense of smell, and a malignant neoplasm in this location can affect olfaction and potentially extend to surrounding structures.

Use this code when documentation explicitly states a primary malignant neoplasm affecting the right olfactory nerve. Supporting documentation will include pathology reports confirming malignancy and imaging studies (e.g., MRI) localizing the tumor to the right olfactory nerve.

• Ensure the laterality (right) is clearly documented.
• Distinguish from secondary or metastatic neoplasms to the olfactory nerve, which would be coded differently.
• Consider sequencing with codes for any associated symptoms or complications, such as anosmia.