Neoplasm of uncertain behavior of adrenal gland

This code signifies a tumor within the adrenal gland where the pathologist cannot definitively classify it as benign or malignant based on current microscopic examination. It indicates an abnormal growth with features that are ambiguous, requiring further investigation or monitoring to determine its ultimate biological behavior.

Apply this code when pathology reports describe an adrenal lesion as "uncertain behavior," "borderline malignancy," or "indeterminate." It is appropriate when the physician suspects a neoplastic process but the definitive benign or malignant nature cannot be established from the biopsy or surgical specimen.

• Ensure the pathology report explicitly states "uncertain behavior" or similar terminology for the adrenal gland.
• Do not use this code if the tumor is definitively diagnosed as benign (e.g., adenoma) or malignant (e.g., carcinoma).
• Always review the full pathology report; do not code solely from a physician's impression if a definitive pathology is available.