Summary & Overview
CPT 15842: Free Muscle Transfer for Facial Reanimation
CPT code 15842 represents a microsurgical free muscle transfer used to reanimate the face in patients with facial nerve paralysis. The procedure involves harvesting muscle from donor sites such as the back, chest, abdomen, or thigh and reconnecting its tiny vessels to facial vasculature under a surgical microscope. Nationally, this code captures a resource-intensive reconstructive surgery performed by microsurgeons and plastic surgeons and is relevant for surgical quality, reimbursement policy, and access to specialized reconstructive care.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for facial reanimation using free muscle transfer, typical sites of service, and common billing practices. The publication outlines benchmark considerations, policy and coverage themes that affect authorization and payment, and clinical implications for coding and service delivery. Data not available in the input is noted where specific payer rates, taxonomies, or related ICD-10 diagnoses would normally appear.
Billing Code Overview
CPT code 15842 describes microvascular free muscle transfer for facial reanimation, in which the provider removes a piece of muscle tissue (commonly from the back, chest, abdomen, or thigh) and transplants it to the face to restore a more normal appearance in a patient with facial nerve paralysis. The procedure requires use of a surgical microscope and microsurgical instruments to anastomose the tiny blood vessels of the grafted tissue to recipient facial vessels.
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Service type: Microsurgical free muscle transfer for facial reanimation
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Typical site of service: Operating room in an acute care hospital or ambulatory surgical center
Clinical & Coding Specifications
Clinical Context
A 48-year-old female with unilateral facial nerve paralysis following resection of a vestibular schwannoma presents with long-standing facial asymmetry, inability to smile, and oral incompetence. After multidisciplinary evaluation, the surgical team plans a free muscle transfer to restore voluntary facial motion. In the operating room under general anesthesia, the reconstructive surgeon harvests a segment of gracilis muscle from the medial thigh. Using a surgical microscope and microsurgical instruments, the surgeon performs microvascular anastomoses between the muscle's artery and vein and recipient facial vessels, and connects the muscle’s motor nerve to a donor nerve (e.g., masseteric nerve) to reinnervate the graft. Postoperative care includes monitoring in a post-anesthesia care unit or step-down setting for flap perfusion, serial flap checks, pain control, and early physical therapy for facial retraining over ensuing months.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
62 | Two surgeons | When two surgeons of different specialties work together and each performs distinct portions of the procedure requiring their skills. |
66 | Surgical team |