Secondary carcinoid tumors of bone

This code signifies the presence of metastatic carcinoid tumors that have spread to the bone from a primary site elsewhere in the body. These are neuroendocrine tumors that originate in various organs, most commonly the gastrointestinal tract or lungs, and subsequently metastasize to the skeletal system.

Use this code when documentation clearly indicates a diagnosis of carcinoid tumor that has metastasized to bone. This typically applies to patients with a known primary carcinoid tumor who present with bone pain, pathological fractures, or imaging findings consistent with skeletal metastases. Documentation should specify "secondary" or "metastatic" to bone.

• Always sequence the primary carcinoid tumor code first, followed by this code for the secondary site.
• Do not use this code for primary bone tumors or other types of metastatic bone cancer.
• Ensure the medical record explicitly states "carcinoid" and "secondary" or "metastatic" to bone.