Malignant neoplasm of supraglottis

This code signifies a cancerous tumor originating in the supraglottis, the upper portion of the larynx situated above the vocal cords. This region includes structures such as the epiglottis (excluding its anterior surface), aryepiglottic folds (laryngeal aspect), arytenoids, and ventricular bands.

Apply this code when documentation clearly specifies a primary malignant neoplasm located within the supraglottic larynx. This diagnosis is typically confirmed through biopsy and imaging studies, with the pathology report identifying the specific site within the supraglottis.

• Carefully review documentation to differentiate supraglottic involvement from hypopharyngeal involvement, especially for aryepiglottic folds.
• Ensure the anterior surface of the epiglottis is not the primary site, as this is coded elsewhere.
• Sequence this code as the primary diagnosis when the malignancy is the reason for the encounter.