Malignant neoplasm of tongue, unspecified

This code signifies a malignant tumor originating in the tongue when the specific subsite (e.g., base, tip, anterior two-thirds) is not documented. It represents an invasive cancerous growth within the lingual tissue.

Apply this code when the medical record clearly indicates a primary malignant neoplasm of the tongue, but the physician documentation lacks specificity regarding the exact anatomical location on the tongue. This is appropriate for initial diagnoses or when pathology confirms malignancy of the tongue without further site detail.

• Avoid using this code if any specific subsite of the tongue is documented; instead, use a more precise C02.x code.
• Always query the provider for greater anatomical specificity if possible, as this improves data quality and may impact treatment planning.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any relevant secondary diagnoses.