Malignant neoplasm of middle lobe, bronchus or lung

This code signifies a primary cancerous growth originating in the middle lobe of the lung or its associated bronchus. This is a specific type of lung cancer, indicating the anatomical location of the malignant tumor.

Apply this code when documentation clearly states a primary malignant neoplasm located in the middle lobe of the lung. This diagnosis is typically confirmed by pathology reports following biopsy or surgical resection, or by imaging studies indicating a mass in this specific lobe.

• Ensure the documentation specifies "middle lobe" and "malignant primary" to differentiate from secondary or benign lesions.
• Do not use for malignant neoplasms of other lung lobes; specific codes exist for upper, lower, and unspecified lobes.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any relevant chemotherapy or radiation therapy codes.