Malignant neoplasm of left ureter

This code signifies the presence of a cancerous tumor originating in the left ureter, the tube that carries urine from the left kidney to the bladder. This malignancy is characterized by uncontrolled cell growth within the ureteral lining or wall, potentially leading to obstruction or metastasis.

Apply this code when documentation explicitly states a primary malignant neoplasm located in the left ureter. This diagnosis is typically confirmed through imaging studies (e.g., CT scan, MRI) and biopsy results. Use this code for initial diagnosis, active treatment, or surveillance of this specific cancer.

• Ensure laterality is clearly documented as "left" to support this specific code.
• Distinguish from benign neoplasms or carcinoma in situ of the ureter, which have different codes.
• Sequence according to the primary site of malignancy; if metastatic, this code would be primary if the ureter is the origin.