Family history of malig neoplasm of trachea, bronc and lung

This code indicates a patient's family history of a primary malignant tumor originating in the trachea, bronchus, or lung. It signifies a genetic predisposition or increased risk due to familial patterns of lung cancer, rather than an active personal diagnosis.

This code is appropriate when documenting a patient's family history of lung cancer, particularly when screening or surveillance for lung malignancies is being considered or performed due to this increased risk. It should be used when the patient themselves does not have a current or past diagnosis of lung cancer.

• Always confirm the specific site of the family member's malignancy to ensure it falls within trachea, bronchus, or lung.
• Do not use this code if the patient has a personal history of lung cancer; use a personal history code instead.
• This code is typically used as a secondary diagnosis to provide context for medical decision-making or risk assessment.