CPT® Code 61316

Add-On Code

The CPT® Code 61316 refers to the procedure of incision and subcutaneous placement of a cranial bone graft. This procedure is specifically performed when a cranial bone graft, which is typically removed during a craniectomy, is intended for future use in reconstructing a skull defect. The process involves creating a subcutaneous pocket, often referred to as subcutaneous banking, which is designed to preserve the viability of the bone graft. This is crucial as it allows the bone to remain suitable for autogenous grafting later on. The procedure begins with an incision made in the skin of the abdomen, where the subcutaneous pocket is fashioned. Once the pocket is created, the cranial bone flap, previously excised during the craniectomy, is carefully placed within this pocket. Finally, the skin and subcutaneous tissue are closed over the bone flap, ensuring that it is securely stored for potential future surgical use. This method not only aids in the preservation of the bone graft but also facilitates the planning of subsequent reconstructive procedures for the skull.