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Official Description

Coronoidectomy (separate procedure)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 21070 refers to a coronoidectomy, which is a surgical intervention involving the removal of the coronoid process of the mandible. The coronoid process is a bony projection on the mandible where the temporalis muscle attaches, playing a crucial role in the movement of the jaw. This procedure is typically performed to address conditions that may cause limitations in jaw movement or to alleviate pain associated with the coronoid process. The surgery is conducted through an intraoral incision, which means that the incision is made inside the mouth, minimizing external scarring. During the procedure, the surgeon carefully reflects the surrounding tissue away from the mandible to access the coronoid process. Once exposed, the coronoid process is clamped and excised using various surgical instruments, including drills, saws, files, and osteotomes, which are specialized tools designed for cutting bone. After the excision is completed, the incision is closed primarily, meaning that the edges of the incision are brought together and sutured without the use of additional materials or techniques. This procedure is classified as a separate procedure, indicating that it is distinct from other surgical interventions that may be performed in conjunction with it.

© Copyright 2026 Coding Ahead. All rights reserved.

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