Malignant neoplasm of vallecula

This code signifies a primary cancerous tumor originating in the vallecula, which is the depression located between the base of the tongue and the epiglottis. This malignancy is a type of oropharyngeal cancer.

Apply this code when documentation clearly states a primary malignant neoplasm of the vallecula. This diagnosis is typically confirmed through biopsy and imaging studies. Ensure the pathology report specifies the vallecula as the tumor's origin.

• Differentiate from malignancies of the base of the tongue or epiglottis, which have distinct codes.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.
• Look for documentation of laterality if applicable, though vallecula is a midline structure.