Malignant neoplasm of pituitary gland and craniopharyngeal duct

This code represents a primary cancerous tumor originating in the pituitary gland or the craniopharyngeal duct. These are rare malignancies affecting endocrine function and potentially causing neurological symptoms due to their location near the brain.

Use this code when documentation clearly indicates a primary malignant neoplasm of the pituitary gland, such as a pituitary carcinoma, or a malignant craniopharyngioma. This code is appropriate for initial diagnosis, treatment, and ongoing management of this specific cancer.

• Differentiate from benign pituitary adenomas, which are coded elsewhere.
• Ensure documentation specifies "malignant" to support this code.
• Consider sequencing with codes for any associated endocrine dysfunction or neurological complications.