Malignant neoplasm of glottis

This code signifies a primary cancerous tumor originating in the glottis, the middle part of the larynx containing the vocal cords. This malignancy specifically affects the true vocal cords and the anterior and posterior commissures.

Assign this code when documentation confirms a primary malignant neoplasm confined to the glottic region of the larynx. This is appropriate for biopsy-confirmed squamous cell carcinoma or other primary glottic malignancies.

• Differentiate from supraglottic (C32.1) or subglottic (C32.2) laryngeal malignancies; anatomical specificity is crucial.
• Ensure the documentation clearly states "glottis" or "vocal cords" as the primary site, not just "larynx."
• Do not use for metastatic disease to the glottis; use a secondary malignancy code along with the primary site.