Malignant neoplasm of medulla of left adrenal gland

This code signifies a cancerous tumor originating in the inner part (medulla) of the left adrenal gland. These neoplasms often arise from chromaffin cells and can lead to the overproduction of catecholamines, such as in pheochromocytoma.

Apply this code when documentation confirms a primary malignant neoplasm located specifically within the medulla of the left adrenal gland. This diagnosis is typically established through imaging, biopsy, and/or laboratory findings indicating a malignant process.

• Ensure laterality is clearly documented as "left" adrenal gland.
• Distinguish between primary malignant neoplasms and secondary (metastatic) malignancies to the adrenal gland.
• Confirm the specific anatomical site within the adrenal gland (cortex vs. medulla) for accurate coding.