Malignant neoplasm of anterior wall of nasopharynx

This code signifies a primary cancerous tumor originating in the anterior wall of the nasopharynx. This specific location refers to the front-most part of the nasopharynx, which is the upper part of the pharynx, behind the nose.

Assign this code when documentation confirms a malignant neoplasm located specifically on the anterior wall of the nasopharynx. This diagnosis is typically established through biopsy and imaging studies.

• Ensure the documentation explicitly states "anterior wall" to differentiate from other nasopharyngeal subsites.
• Do not confuse with benign neoplasms or neoplasms of uncertain behavior of the nasopharynx.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any relevant secondary diagnoses.