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CPT 64898: Multiple Strand Nerve Graft for Peripheral Nerve Repair

CPT code 64898 denotes a multiple strand nerve graft procedure for peripheral nerve repair in an upper or lower extremity when the graft length is greater than 4 cm. This operative code captures a specific reconstructive technique used to bridge substantial nerve defects and is relevant to surgeons, surgical facilities, and payers managing care for traumatic or iatrogenic nerve injuries. Nationally, accurate coding for complex nerve reconstruction supports appropriate coverage determinations and payment for resource-intensive surgical care.

Key payers reviewed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context on when this procedure is used, typical sites of service, and the implications for billing and coverage for lengthy peripheral nerve grafts. The publication presents benchmarks and coding considerations relevant to facility and professional claims, highlights common modifier usage patterns, and summarizes policy language where available.

The article is intended to help coding specialists, surgical teams, and revenue integrity staff understand the clinical scenario captured by CPT code 64898, typical operational settings, and the payer landscape that governs reimbursement and prior authorization practices.

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Billing Code Overview

CPT code 64898 describes a multiple strand nerve graft procedure used to repair a damaged peripheral nerve in an arm or leg when the graft length exceeds 4 cm. The technique involves harvesting and implanting one or more nerve graft strands to bridge a nerve defect and restore continuity.

Service type: Surgical nerve grafting (peripheral nerve reconstruction)
Typical site of service: Hospital operating room or ambulatory surgical center for operative peripheral nerve repair

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CPT 64898: Multiple Strand Nerve Graft for Peripheral Nerve Repair

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Billing Code Overview

Service type: Surgical nerve grafting (peripheral nerve reconstruction)
Typical site of service: Hospital operating room or ambulatory surgical center for operative peripheral nerve repair

Clinical & Coding Specifications

Clinical Context

A 32-year-old male motorcyclist presents to the orthopedic surgery service after a high-energy open forearm injury with transection of the median nerve. After initial wound management and imaging in the emergency department, the patient is scheduled for operative exploration. Intraoperative findings confirm a segmental nerve defect of the median nerve measuring greater than 4 cm. The surgeon performs a multiple-strand autologous nerve graft reconstruction using sural nerve segments to bridge the defect. The procedure is performed in an operating room under general anesthesia with regional block for postoperative pain control. Postoperative workflow includes neurovascular checks in the PACU, wound care, immobilization of the limb, and a referral to hand therapy for sensory re-education and motor retraining. Follow-up visits occur at 2 weeks for wound check and at regular intervals (6 weeks, 3 months, 6 months, 12 months) to monitor nerve regeneration and functional recovery. Documentation includes preoperative nerve injury assessment, intraoperative measurements of the graft length (>4 cm), graft source and technique (multiple-strand nerve graft), implant counts if applicable, and detailed postoperative plan including therapy and expected timeline for reinnervation.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	When billing separately for the surgeon's professional service distinct from the facility charge if required by payer.
`50`	Bilateral procedure	If simultaneous nerve grafting is performed on contralateral limbs during the same operative session.
`51`	Multiple procedures	When additional unrelated procedures are performed during the same operative session on the same patient.
`52`	Reduced services	If the nerve graft procedure is partially reduced or shortened intraoperatively.
`53`	Discontinued procedure	If the procedure is started but stopped due to unforeseen circumstances (e.g., unsafe tissue conditions).
`59`	Distinct procedural service	When reporting another procedural service that is distinct and not normally reported with the nerve graft (use per payer guidance).
`62`	Two surgeons	When two surgeons work together as primary surgeons performing distinct portions of the graft reconstruction.
`78`	Unplanned return to the OR	For an unplanned return to the operating room related to the original procedure during the global period.
`79`	Unrelated procedure or service by the same physician during the postoperative period	When a separate unrelated procedure is performed during the global period (note: `79` is not listed in input modifiers; therefore do not use).
`80`	Assistant surgeon	When an assistant surgeon is required and billed for participating in the procedure.
`81`	Minimum assistant surgeon	When a reduced level assistant surgeon service is billed.
`62`	Two surgeons	When two surgeons of different specialties perform separate, documented portions of the operation.
`53`	Discontinued procedure	If intraoperative findings prevent completion of the planned grafting.

Taxonomy Code	Specialty	Notes
207L00000X	Orthopedic Surgery	Common specialty performing extremity nerve repair and grafting.
2080P0222X	Plastic Surgery	Frequently performs peripheral nerve reconstruction and microsurgical nerve grafting.
2086S0105X	Neurological Surgery	May perform complex peripheral nerve repairs, especially proximal limb or brachial plexus injuries.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S54.022A`	Laceration of radial nerve at forearm level, initial encounter	Forearm nerve lacerations with segmental loss frequently require nerve grafting when direct repair is not possible.
`S54.032A`	Laceration of ulnar nerve at forearm level, initial encounter	Ulnar nerve defects in the forearm may need grafting when tension-free repair cannot be achieved.
`S64.112A`	Laceration of median nerve at forearm level, initial encounter	Median nerve transection with a defect >4 cm is a classic indication for multiple-strand nerve grafting.
`G56.01`	Carpal tunnel syndrome, right upper limb	Chronic compressive neuropathies may require neuroplasty rather than grafting; listed for clinical relevance in differential diagnoses.
`S44.412A`	Injury of radial nerve at arm level, initial encounter	Proximal nerve injuries with segmental loss may necessitate grafting or more complex reconstruction.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`24341`	Repair, traumatic rupture or avulsion, flexor tendon; forearm and/or wrist, each tendon	May be performed concurrently when associated flexor tendon injuries accompany nerve defects in the forearm.
`29827`	Arthroscopy, wrist, surgical; with debridement, limited	May be related if joint inspection or debridement is required in complex trauma cases prior to nerve reconstruction.
`39999`	Unlisted procedure, vascular surgery or related structures	Occasionally used for reporting atypical or novel adjunct procedures related to vascularized nerve grafts when no specific code exists.
`64712`	Neuroplasty and/or transposition; peripheral nerve, arm or leg	Performed for scarred or entrapped nerves and may precede or follow grafting in staged procedures.
`66999`	Unlisted procedure, anterior segment of eye	Data not applicable; included as placeholder only.

Related Codes

CPT-64885-NERVE-GRAFT-HEAD-NECK

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

CPT-64886-NERVE-GRAFT-HEAD-NECK-GRAFT-LONGER-THAN-4CM

CPT 64886: Nerve Graft, Head and Neck, Donor Segment >4 cm

CPT-64890-NERVE-GRAFT-RECONSTRUCTION-HAND-FOOT

CPT 64890: Peripheral Nerve Graft for Hand or Foot

CPT-64891-NERVE-GRAFT-HAND-FOOT-LONG-SEGMENT

CPT 64891: Autologous Nerve Graft for Hand or Foot (>4 cm)

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

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

CPT-64893-SINGLE-STRAND-NERVE-GRAFT-ARM-LEG-GRAFT-GREATER-THAN-4CM

CPT 64893: Single-Strand Nerve Graft for Arm or Leg (>4 cm)

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

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

CPT-64897-NERVE-GRAFT-MULTIPLE-STRAND-UPPER-OR-LOWER-EXTREMITY

CPT 64897: Multiple Strand Nerve Graft for Arm or Leg Repair

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

CPT 64901: Additional Single-Strand Nerve Graft Repair

Showing 1–10 of 17

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	When billing separately for the surgeon's professional service distinct from the facility charge if required by payer.
`50`	Bilateral procedure	If simultaneous nerve grafting is performed on contralateral limbs during the same operative session.
`51`	Multiple procedures	When additional unrelated procedures are performed during the same operative session on the same patient.
`52`	Reduced services	If the nerve graft procedure is partially reduced or shortened intraoperatively.
`53`	Discontinued procedure	If the procedure is started but stopped due to unforeseen circumstances (e.g., unsafe tissue conditions).
`59`	Distinct procedural service	When reporting another procedural service that is distinct and not normally reported with the nerve graft (use per payer guidance).
`62`	Two surgeons	When two surgeons work together as primary surgeons performing distinct portions of the graft reconstruction.
`78`	Unplanned return to the OR	For an unplanned return to the operating room related to the original procedure during the global period.
`79`	Unrelated procedure or service by the same physician during the postoperative period	When a separate unrelated procedure is performed during the global period (note: `79` is not listed in input modifiers; therefore do not use).
`80`	Assistant surgeon	When an assistant surgeon is required and billed for participating in the procedure.
`81`	Minimum assistant surgeon	When a reduced level assistant surgeon service is billed.
`62`	Two surgeons	When two surgeons of different specialties perform separate, documented portions of the operation.
`53`	Discontinued procedure	If intraoperative findings prevent completion of the planned grafting.

Taxonomy Code	Specialty	Notes
207L00000X	Orthopedic Surgery	Common specialty performing extremity nerve repair and grafting.
2080P0222X	Plastic Surgery	Frequently performs peripheral nerve reconstruction and microsurgical nerve grafting.
2086S0105X	Neurological Surgery	May perform complex peripheral nerve repairs, especially proximal limb or brachial plexus injuries.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S54.022A`	Laceration of radial nerve at forearm level, initial encounter	Forearm nerve lacerations with segmental loss frequently require nerve grafting when direct repair is not possible.
`S54.032A`	Laceration of ulnar nerve at forearm level, initial encounter	Ulnar nerve defects in the forearm may need grafting when tension-free repair cannot be achieved.
`S64.112A`	Laceration of median nerve at forearm level, initial encounter	Median nerve transection with a defect >4 cm is a classic indication for multiple-strand nerve grafting.
`G56.01`	Carpal tunnel syndrome, right upper limb	Chronic compressive neuropathies may require neuroplasty rather than grafting; listed for clinical relevance in differential diagnoses.
`S44.412A`	Injury of radial nerve at arm level, initial encounter	Proximal nerve injuries with segmental loss may necessitate grafting or more complex reconstruction.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`24341`	Repair, traumatic rupture or avulsion, flexor tendon; forearm and/or wrist, each tendon	May be performed concurrently when associated flexor tendon injuries accompany nerve defects in the forearm.
`29827`	Arthroscopy, wrist, surgical; with debridement, limited	May be related if joint inspection or debridement is required in complex trauma cases prior to nerve reconstruction.
`39999`	Unlisted procedure, vascular surgery or related structures	Occasionally used for reporting atypical or novel adjunct procedures related to vascularized nerve grafts when no specific code exists.
`64712`	Neuroplasty and/or transposition; peripheral nerve, arm or leg	Performed for scarred or entrapped nerves and may precede or follow grafting in staged procedures.
`66999`	Unlisted procedure, anterior segment of eye	Data not applicable; included as placeholder only.

Related Codes

CPT-64885-NERVE-GRAFT-HEAD-NECK

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

CPT-64886-NERVE-GRAFT-HEAD-NECK-GRAFT-LONGER-THAN-4CM

CPT 64886: Nerve Graft, Head and Neck, Donor Segment >4 cm

CPT-64890-NERVE-GRAFT-RECONSTRUCTION-HAND-FOOT

CPT 64890: Peripheral Nerve Graft for Hand or Foot

CPT-64891-NERVE-GRAFT-HAND-FOOT-LONG-SEGMENT

CPT 64891: Autologous Nerve Graft for Hand or Foot (>4 cm)

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

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

CPT-64893-SINGLE-STRAND-NERVE-GRAFT-ARM-LEG-GRAFT-GREATER-THAN-4CM

CPT 64893: Single-Strand Nerve Graft for Arm or Leg (>4 cm)

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

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

CPT-64897-NERVE-GRAFT-MULTIPLE-STRAND-UPPER-OR-LOWER-EXTREMITY

CPT 64897: Multiple Strand Nerve Graft for Arm or Leg Repair

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

CPT 64901: Additional Single-Strand Nerve Graft Repair

Showing 1–10 of 17

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.