64866 Fusion of facial/other nerve
Also known as: facial nerve fusion, facial nerve transfer
Surgical fusion or connection of the facial nerve to another nerve for restoration of facial function when direct repair impossible. May involve nerve transfer or cross-over anastomosis.
In Plain Language
connecting facial nerve to another nerve; cross-over nerve surgery
Clinical Context
Performed when facial nerve gaps prevent direct repair, typically connecting facial nerve to accessory nerve (spinal accessory) or other donor nerve. Advanced reconstructive procedure.
RVU Breakdown
| Work RVU | 16.41 |
| Total RVU | 16.41 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
As a surgical CPT code, proper documentation must include the operative report detailing the procedure performed, patient positioning, approach, findings, and any complications. This code has a 90-day global period, which includes the day of the procedure, 1 day preoperative, and 90 days of postoperative care. Ensure the diagnosis code (ICD-10) supports medical necessity for the procedure.
How This Code Compares
With a work RVU of 16.41, this code ranks in the 76th percentile among Surgery codes — 2.1x the median (8.00). The highest wRVU in this category is 106.19.
Specialties
Frequently Asked Questions
What is CPT code 64866?
CPT 64866 (Fusion of facial/other nerve) is a Surgery code. Surgical fusion or connection of the facial nerve to another nerve for restoration of facial function when direct repair impossible. May involve nerve transfer or cross-over anastomosis.
What is the wRVU value for CPT 64866?
The work RVU for CPT 64866 is 16.41. This code is primarily used by Neurosurgery, Otolaryngology, Plastic Surgery. It has a 90-day global period.
When is CPT 64866 used?
Performed when facial nerve gaps prevent direct repair, typically connecting facial nerve to accessory nerve (spinal accessory) or other donor nerve. Advanced reconstructive procedure.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.