Malignant neoplasm of adrenal gland

This code signifies the presence of a primary cancerous tumor originating in the adrenal gland. This malignancy can affect either the cortex or medulla of the adrenal gland, leading to various hormonal imbalances or mass effects.

Apply this code when documentation clearly states a primary malignant neoplasm of the adrenal gland. This diagnosis is typically confirmed through biopsy, imaging studies (CT, MRI), and often elevated adrenal hormones. Use this code for the initial diagnosis and treatment of the primary adrenal cancer.

• Differentiate between primary adrenal malignancy and metastatic disease to the adrenal gland; the latter would require a secondary malignancy code.
• Specify the laterality (left, right, or bilateral) if documented, although ICD-9-CM 194.0 does not allow for laterality specificity.
• Ensure documentation supports the "malignant" nature, as benign adrenal neoplasms are coded differently.