CPT 64905 Nerve Transfer Reimbursement | OpenPayer

Summary & Overview

CPT 64905: Nerve Transfer for Peripheral Nerve Reconstruction

CPT code 64905 represents a surgical nerve transfer in which a healthy donor nerve is partially redirected to a damaged recipient nerve to accelerate reinnervation and functional recovery. This procedure is used for complex peripheral nerve injuries such as brachial plexus trauma, nerve root avulsion, or irreparable lacerations. Nationally, nerve transfer techniques have become an important option in limb- and function-preserving reconstructive surgery and are relevant for surgical, rehabilitation, and payer policy communities.

Key payers examined include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for 64905, typical sites of service, and common billing considerations tied to the procedure. The publication summarizes benchmarking and coverage themes, clinical indications that commonly support medical necessity, and policy updates that affect prior authorization and claim adjudication for advanced nerve reconstruction.

The report is intended to help coding professionals, surgical teams, and payer policy analysts understand where 64905 fits in care pathways, how payers typically approach coverage and prior authorization, and what documentation and clinical rationale are central to claim acceptance. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare64905CPTnerve transferperipheral nerve surgerybrachial plexusreconstructive surgerysurgical codingoperative procedurenerve repair

Billing Code Overview

CPT code 64905 describes a surgical nerve transfer procedure in which a portion of a less important, healthy donor nerve is redirected to a damaged recipient nerve to promote faster reconnection and functional recovery. This technique is commonly used for complex peripheral nerve injuries, such as brachial plexus injuries with irreparable nerve laceration, nerve root avulsion, or severe compression injuries.

Service type: Peripheral nerve transfer surgery, reconstructive nerve procedure
Typical site of service: Operating room in an acute hospital or ambulatory surgical center, often performed by neurosurgeons or orthopedic/plastic surgeons with peripheral nerve expertise

Clinical & Coding Specifications

Clinical Context

A 28-year-old male motorcyclist presents after a high-speed collision with a complete laceration of the upper trunk of the brachial plexus and persistent loss of elbow flexion and shoulder abduction despite initial wound care and imaging. Nerve conduction studies and MRI confirm an irreparable proximal radial nerve avulsion and significant functional deficit. The surgical team plans an operative nerve transfer to restore elbow flexion using a less critical donor motor nerve (e.g., ulnar or intercostal branch) transferred to the musculocutaneous nerve branch.

Preoperative workflow includes surgical consent, baseline neurologic exam, pre-op imaging (MRI of the brachial plexus), and electrodiagnostic testing. Intraoperatively the surgeon identifies the injured recipient nerve, harvests a healthy donor fascicle, performs microsurgical coaptation under magnification, documents the transfer, and closes. Postoperative care involves immobilization, pain control, and a staged rehabilitation plan with physical and occupational therapy focusing on motor re-education and graded strengthening. Typical site of service is an inpatient hospital operating room or ambulatory surgical center depending on complexity and comorbidities. Service type: reconstructive peripheral nerve surgery (nerve transfer) for traumatic or irreparable nerve injury.

Coding Specifications

Modifier	Description	When to Use
`59`	Distinct procedural service	Use when the nerve transfer is a distinct operative procedure performed separate from other procedures at the same session and not normally billed together.

CPT 64890: Peripheral Nerve Graft for Hand or Foot

CPT-64885-NERVE-GRAFT-HEAD-NECK

CPT 64885: Nerve Graft for Head or Neck, Up to 4 cm

CPT-64901-ADDITIONAL-SINGLE-STRAND-NERVE-GRAFT-REPAIR

CPT 64901: Additional Single-Strand Nerve Graft Repair

CPT-64913-NERVE-TISSUE-GRAFT-ADDITIONAL-NERVE-STRAND

CPT 64913: Nerve Tissue Graft, Each Additional Nerve Strand

CPT-64910-NERVE-RECONSTRUCTION-WITH-CONDUIT-OR-VEIN-GRAFT

CPT 64910: Nerve Reconstruction Using Conduit or Vein Graft

CPT-64898-MULTIPLE-STRAND-NERVE-GRAFT-PERIPHERAL-NERVE-REPAIR

CPT 64898: Multiple Strand Nerve Graft for Peripheral Nerve Repair

CPT-64911-AUTOGENOUS-VEIN-NERVE-GRAFT-REPAIR

CPT 64911: Nerve Repair with Autogenous Vein Graft

CPT-64896-MULTIPLE-STRAND-NERVE-GRAFT-HAND-FOOT

CPT 64896: Multiple Strand Nerve Graft for Hand or Foot Repair

CPT-64895-MULTIPLE-STRAND-NERVE-GRAFT-HAND-FOOT-UP-TO-4CM

CPT 64895: Multiple Strand Nerve Graft for Hand or Foot (Up to 4 cm)

CPT-64892-NERVE-GRAFT-UP-TO-4CM-UPPER-LOWER-EXTREMITY

CPT 64892: Single-Strand Nerve Graft for Arm or Leg (≤4 cm)

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Taxonomy Code	Specialty	Notes
`207X00000X`	Orthopaedic Surgery	Orthopedic surgeons specializing in upper extremity/brachial plexus injuries commonly perform nerve transfers.
`2080P0208X`	Plastic Surgery	Reconstructive and peripheral nerve specialists in plastic surgery frequently perform microsurgical nerve transfers.
`2084P0800X`	Neurological Surgery	Peripheral nerve reconstructive procedures may be performed by neurosurgeons with peripheral nerve expertise.
`208D00000X`	Hand Surgery	Surgeons with hand specialty often manage brachial plexus and upper extremity nerve reconstructions.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S14.1XXA`	Injury of brachial plexus, initial encounter	Common traumatic indication for nerve transfer when brachial plexus roots are avulsed or irreparable.
`S54.1XXA`	Traumatic rupture of radial nerve at forearm level, initial encounter	Severe radial nerve injuries may require transfer if direct repair is not feasible and function restoration is needed.
`S44.3XXA`	Injury of ulnar nerve at forearm level, initial encounter	Ulnar nerve injuries can be donors or recipients in transfers depending on injury pattern.
`G56.3`	Lesion of brachial plexus	Nontraumatic or chronic lesions leading to deficits that may be addressed with nerve transfer.
`G54.0`	Brachial plexus disorders in diseases classified elsewhere	Used when brachial plexus dysfunction is secondary to systemic disease requiring surgical intervention.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`64856`	Nerve repair; 1 cm or less, with or without nerve graft (e.g., neuroplasty)	May be used when primary repair of a transected peripheral nerve is performed instead of or in addition to nerve transfer.
`64885`	Incision and decompression of peripheral nerve (e.g., neuroplasty and/or transposition)	Performed when nerve compression contributes to dysfunction and decompression is required during the same operative setting.
`95940`	Continuous intraoperative neurophysiology monitoring (recording and interpretation)	Often used adjunctively to monitor nerve function intraoperatively during complex nerve transfers.
`69990`	Microsurgical techniques, requiring use of operating microscope	Billed when an operating microscope is used for the microsurgical coaptation of nerve fascicles during transfer.
`64718`	Neuroplasty and/or transposition; major peripheral nerve (e.g., brachial plexus)	May be reported when extensive neuroplasty of a major peripheral nerve is performed in conjunction with transfer.

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