Malignant neoplasm of posterior wall of nasopharynx

This code signifies the presence of a cancerous tumor originating from the posterior wall of the nasopharynx. This area is located behind the nasal cavity and above the soft palate, forming the upper part of the pharynx. The malignancy involves the tissues lining this specific anatomical region.

Use this code when documentation clearly indicates a primary malignant neoplasm located on the posterior wall of the nasopharynx. This diagnosis is typically established through biopsy and confirmed by pathology reports. Clinical scenarios include initial diagnosis, treatment planning, and follow-up for this specific cancer.

• Ensure the documentation specifies "posterior wall" of the nasopharynx; other nasopharyngeal sites have different codes.
• Confirm the neoplasm is malignant and primary; metastatic disease to this site would be coded differently.
• Review pathology reports and physician notes for precise anatomical location and malignancy confirmation.