Malignant carcinoid tumor of the cecum

This code signifies a neuroendocrine tumor originating in the cecum, characterized by its malignant nature and potential for metastasis. Carcinoid tumors are a type of slow-growing cancer that can produce and secrete hormones, leading to a variety of symptoms depending on their location and hormone production.

Use this code when documentation clearly indicates a primary malignant carcinoid tumor specifically located in the cecum. This diagnosis is typically confirmed by biopsy and histopathological examination, often following endoscopic procedures or surgical resection.

• Ensure the pathology report explicitly states "malignant carcinoid" and confirms the cecal origin.
• Distinguish from benign carcinoid tumors or other types of cecal malignancies (e.g., adenocarcinoma).
• Code any associated carcinoid syndrome manifestations separately, if documented.