Malignant neoplasm of middle third of esophagus

This code signifies a cancerous tumor located in the middle section of the esophagus. This malignancy originates from the esophageal tissue and is characterized by uncontrolled cell growth, potentially invading surrounding structures or metastasizing to distant sites.

Apply this code when documentation explicitly states a primary malignant neoplasm of the middle third of the esophagus. This typically includes findings from endoscopy with biopsy confirming malignancy, imaging studies (e.g., CT, MRI) showing a mass in the mid-esophagus, and pathology reports.

• Ensure the documentation specifies "middle third" of the esophagus; otherwise, a more general esophageal malignancy code may be appropriate.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless a complication of the neoplasm is being treated.
• Look for associated codes for the specific histology (e.g., adenocarcinoma, squamous cell carcinoma) if available in the pathology report.