Malignant neoplasm of other sites of tongue

This code signifies a primary cancerous tumor originating in any part of the tongue not specifically classified elsewhere, such as the base, tip, or dorsum. It indicates a malignant growth requiring oncological management.

Use this code when documentation confirms a primary malignant neoplasm of the tongue, and the specific anatomical site (e.g., base, tip, dorsum, anterior two-thirds) is not detailed or falls into an "other specified" category. Supporting documentation should include pathology reports confirming malignancy and physician notes specifying the tongue as the primary site.

• Ensure the documentation clearly states "malignant" to differentiate from benign or uncertain neoplasms.
• Avoid using this code if a more specific anatomical site of the tongue is documented (e.g., C02.0 for dorsum of tongue in ICD-10-CM).
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless a complication of the neoplasm is being treated.