Neoplasm of unspecified behavior of right kidney

This diagnosis code indicates the presence of an abnormal growth in the right kidney that cannot be definitively classified as benign or malignant based on current pathological or clinical findings. It signifies a renal neoplasm where the behavior (e.g., metastatic potential) is undetermined.

Use this code when diagnostic workup (e.g., biopsy, imaging) has identified a mass in the right kidney, but the pathology report or clinical assessment is inconclusive regarding its benign or malignant nature. This code is appropriate for initial presentation or when awaiting further definitive diagnostic results.

• Ensure documentation explicitly states "right kidney" and "unspecified behavior" for the neoplasm.
• Avoid using this code if a definitive diagnosis of benign (e.g., D30.01) or malignant (e.g., C64.1) renal neoplasm has been established.
• Sequence this code as the primary diagnosis when the unspecified renal neoplasm is the reason for the encounter, or as a secondary diagnosis if it's an incidental finding.