Malignant neoplasm of trachea

This code identifies a primary cancerous tumor originating in the trachea, the windpipe that connects the larynx to the bronchi. This malignancy can obstruct the airway, leading to respiratory distress and other symptoms. It encompasses all histological types of primary tracheal cancer.

Use this code when documentation clearly indicates a primary malignant neoplasm of the trachea. This diagnosis is typically confirmed through biopsy and imaging studies. It applies to cases where the trachea is the initial site of cancer, not a metastatic spread from another primary tumor.

• Differentiate from secondary malignant neoplasms of the trachea (C78.39), which are metastases from another primary site.
• Ensure documentation specifies "primary" to avoid confusion with metastatic disease.
• Sequence this code as the primary diagnosis when the tracheal malignancy is the reason for the encounter.