Malignant neoplasm of junctional zone of tongue

This code identifies a primary malignant tumor originating specifically at the junctional zone of the tongue. This area typically refers to the border between the anterior two-thirds and the posterior one-third of the tongue, or the junction of the oral tongue and the base of the tongue. It signifies a cancerous growth requiring definitive diagnosis and treatment.

Use this code when documentation clearly specifies a primary malignant neoplasm located at the junctional zone of the tongue. This diagnosis is typically confirmed by biopsy and pathology reports. Supporting documentation should include the specific anatomical site of the tumor within the tongue.

• Differentiate from malignant neoplasms of other specific tongue sites (e.g., tip, dorsal surface, base) as these have distinct codes.
• Ensure the documentation specifies "malignant" and "primary" to avoid confusion with benign lesions or secondary metastases.
• Review pathology reports carefully for precise tumor location within the tongue to select the most accurate subcategory.