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CPT 64832: Repair of Additional Digital Nerve in Finger or Toe

CPT code 64832 covers repair of an additional digital nerve in a finger or toe performed during the same surgical session as an initial nerve repair. This code is used for procedures that restore sensory and/or motor function after traumatic nerve injury and is relevant across surgical specialties that manage hand and foot trauma. Nationally, accurate coding for supplemental nerve repairs affects procedure-level reporting, episode-of-care documentation, and payment for complex reconstructive services.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for digital nerve repair, typical sites of service, and common billing considerations tied to this procedure code. The publication also summarizes benchmarking topics and recent policy updates that affect surgical coding and claim submission practices for nerve repair procedures.

This summary provides clinicians, coding professionals, and policy analysts with the clinical meaning of the code, the types of settings where the procedure is performed, and the payer landscape that determines coverage and claims processing for CPT code 64832.

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Billing Code Overview

CPT code 64832 describes a surgical procedure in which the provider repairs an additional digital nerve in a finger or toe during the same operative session after an initial nerve repair. The procedure is intended to restore sensory and/or motor function when nerves are damaged or severed by injury or trauma.

Service type: Surgical peripheral nerve repair of an additional digital nerve during the same session
Typical site of service: Ambulatory surgical center or hospital operating room, often performed by hand or peripheral nerve surgeons

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CPT 64832: Repair of Additional Digital Nerve in Finger or Toe

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Get alerted when payer policies referencing 64832 are released or updated.

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Billing Code Overview

Service type: Surgical peripheral nerve repair of an additional digital nerve during the same session
Typical site of service: Ambulatory surgical center or hospital operating room, often performed by hand or peripheral nerve surgeons

Clinical & Coding Specifications

Clinical Context

A 28-year-old male presents to the emergency department after a hand laceration from broken glass while working. On exam, two digital nerves in the middle and ring fingers appear transected. The patient is taken to the operating room under regional block for exploration and primary repair of the first injured digital nerve. During the same surgical session, the surgeon identifies an additional injured digital nerve in the adjacent finger and performs repair of that second nerve. The procedure performed for the additional nerve repair is reported using 64832 to document repair of another nerve in a finger or toe during the same operative session. Typical workflow includes preoperative consent and documentation of mechanism of injury, intraoperative findings (nerve identification, viable nerve ends), technical details of repair (microsutures, use of magnification), and postoperative instructions for wound care and hand therapy. Typical site of service is an operating room in a hospital or ambulatory surgery center. The service restores sensory and/or motor function in digits after traumatic nerve transection and is commonly performed by hand surgeons, orthopedic surgeons, or plastic surgeons with microsurgical skills.

Coding Specifications

Modifier	Description	When to Use
`59`	Distinct procedural service	Use when procedures performed on separate digits or distinct anatomical sites require linkage separation from other services during the same encounter.
`51`	Multiple procedures	Use when reporting multiple procedures during the same operative session; many payors expect appropriate multiple-procedure rules.
`52`	Reduced services	Use when the repair is partially reduced in scope or effort compared with the full procedure description.
`53`	Discontinued procedure	Use when the planned additional nerve repair was started but discontinued due to intraoperative findings.
`62`	Two surgeons	Use when two surgeons with different NPI/credentials simultaneously perform portions of the procedure.
`76`	Repeat procedure by same physician	Use when an additional repair is repeated later the same day by the same physician (less commonly applied).
`78`	Unplanned return to the operating room	Use when the patient returns to the OR for complications requiring repeat repair of the digit nerve within the global period.
`22`	Increased procedural services	Use when operative complexity or time is substantially greater than typical for a nerve repair and documentation supports unusual effort.
`24`	Unrelated E/M during global period	Use when an unrelated evaluation and management service is provided during the postoperative global period (not for the repair itself).
`26`	Professional component	Use when billing professional component separately from facility/technical component, rarely applied for operative services.
`LT`	Left side	Use to indicate the left digit involved when laterality reporting is required.
`RT`	Right side	Use to indicate the right digit involved when laterality reporting is required.
`XS`	Separate tax ID service	Use when the additional nerve repair is performed by a different tax identification number and is distinct from the primary procedure.

Taxonomy Code	Specialty	Notes
207LH0000X	Orthopedic Hand Surgery	Common specialty performing digital nerve repairs; expertise in hand trauma and microsurgery.
2084P0800X	Plastic and Reconstructive Surgery	Performs complex nerve repairs and microsurgical reconstruction of digits.
208U00000X	General Surgery (Hand Surgery-focused)	Some general surgeons with hand specialization perform digital nerve repairs in trauma centers.
261QA1900X	Neurology (Peripheral Nerve Specialist)	Rarely involved intraoperatively but may consult for complex nerve injuries and follow-up.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S64.021A`	Complete laceration of right middle finger digital nerve, initial encounter	Directly indicates a transected digital nerve in a specific finger requiring repair.
`S64.022A`	Complete laceration of left middle finger digital nerve, initial encounter	Indicates contralateral or additional digital nerve laceration when multiple digits are injured.
`S64.111A`	Laceration of flexor tendon of right index finger with nerve involvement, initial encounter	Reflects combined tendon and nerve injury where nerve repair is performed alongside tendon repair.
`S64.891A`	Other specified injuries of right hand, initial encounter	Used when the documentation describes specific nerve injury not otherwise classified.
`S61.311A`	Laceration without foreign body of right index finger without damage to nail, initial encounter	Common presenting diagnosis for digital lacerations that may include nerve injury identified intraoperatively.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`64721`	Neuroplasty and/or transposition; median nerve at carpal tunnel	Performed when proximal nerve decompression or neuroplasty is required in addition to distal digital nerve repair in complex injuries.
`64831`	Repair of initial nerve in a finger or toe; first nerve repair	Often reported for the primary nerve repair during the same session; `64832` is used for the additional nerve repair.
`64719`	Neuroplasty, other peripheral nerve (eg, tibial, peroneal, radial)	May be used for associated peripheral nerve procedures in the same limb when clinically necessary.
`26010`	Repair, tendon, flexor, hand; primary or secondary, single tendon	Frequently performed concomitantly when digital tendons are injured alongside nerves during hand trauma.
`26580`	Repair of nerve with direct suture under operating microscope (digital nerve) — (Note: example microsurgical technique code)	Performed when microsurgical techniques or operating microscope are used for precise digital nerve coaptation.

Related Codes

CPT-64831-FINGER-TOE-NERVE-REPAIR

CPT 64831: Repair of Nerve in Finger or Toe

CPT-64834-SENSORY-NERVE-REPAIR-HAND-FOOT

CPT 64834: Sensory Nerve Repair of Hand or Foot

CPT-64835-MEDIAN-NERVE-BRANCH-REPAIR-THUMB-MOTOR-SENSORY

CPT 64835: Repair of Median Nerve Branch for Thumb Function

CPT-64836-ULNAR-MOTOR-NERVE-REPAIR

CPT 64836: Ulnar Motor Nerve Repair

CPT-64837-ADD-ON-HAND-FOOT-NERVE-REPAIR-ADDITIONAL-NERVE-SUTURE-REPAIR

CPT 64837: Add-on Repair of Additional Hand or Foot Nerve with Sutures

CPT-64840-POSTERIOR-TIBIAL-NERVE-REPAIR-SUTURING

CPT 64840: Posterior Tibial Nerve Repair, Suturing

CPT-64856-PERIPHERAL-NERVE-REPAIR-WITH-TRANSPOSITION

CPT 64856: Major Peripheral Nerve Repair with Transposition

CPT-64857-PERIPHERAL-NERVE-REPAIR-ARM-LEG

CPT 64857: Major Peripheral Nerve Repair of Arm or Leg

CPT-64858-SCIATIC-NERVE-REPAIR

CPT 64858: Repair of Sciatic Nerve

CPT-64859-PERIPHERAL-NERVE-REPAIR-ADD-ON

CPT 64859: Repair of Additional Peripheral Nerves (Add-on)

Showing 1–10 of 19

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
`59`	Distinct procedural service	Use when procedures performed on separate digits or distinct anatomical sites require linkage separation from other services during the same encounter.
`51`	Multiple procedures	Use when reporting multiple procedures during the same operative session; many payors expect appropriate multiple-procedure rules.
`52`	Reduced services	Use when the repair is partially reduced in scope or effort compared with the full procedure description.
`53`	Discontinued procedure	Use when the planned additional nerve repair was started but discontinued due to intraoperative findings.
`62`	Two surgeons	Use when two surgeons with different NPI/credentials simultaneously perform portions of the procedure.
`76`	Repeat procedure by same physician	Use when an additional repair is repeated later the same day by the same physician (less commonly applied).
`78`	Unplanned return to the operating room	Use when the patient returns to the OR for complications requiring repeat repair of the digit nerve within the global period.
`22`	Increased procedural services	Use when operative complexity or time is substantially greater than typical for a nerve repair and documentation supports unusual effort.
`24`	Unrelated E/M during global period	Use when an unrelated evaluation and management service is provided during the postoperative global period (not for the repair itself).
`26`	Professional component	Use when billing professional component separately from facility/technical component, rarely applied for operative services.
`LT`	Left side	Use to indicate the left digit involved when laterality reporting is required.
`RT`	Right side	Use to indicate the right digit involved when laterality reporting is required.
`XS`	Separate tax ID service	Use when the additional nerve repair is performed by a different tax identification number and is distinct from the primary procedure.

Taxonomy Code	Specialty	Notes
207LH0000X	Orthopedic Hand Surgery	Common specialty performing digital nerve repairs; expertise in hand trauma and microsurgery.
2084P0800X	Plastic and Reconstructive Surgery	Performs complex nerve repairs and microsurgical reconstruction of digits.
208U00000X	General Surgery (Hand Surgery-focused)	Some general surgeons with hand specialization perform digital nerve repairs in trauma centers.
261QA1900X	Neurology (Peripheral Nerve Specialist)	Rarely involved intraoperatively but may consult for complex nerve injuries and follow-up.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S64.021A`	Complete laceration of right middle finger digital nerve, initial encounter	Directly indicates a transected digital nerve in a specific finger requiring repair.
`S64.022A`	Complete laceration of left middle finger digital nerve, initial encounter	Indicates contralateral or additional digital nerve laceration when multiple digits are injured.
`S64.111A`	Laceration of flexor tendon of right index finger with nerve involvement, initial encounter	Reflects combined tendon and nerve injury where nerve repair is performed alongside tendon repair.
`S64.891A`	Other specified injuries of right hand, initial encounter	Used when the documentation describes specific nerve injury not otherwise classified.
`S61.311A`	Laceration without foreign body of right index finger without damage to nail, initial encounter	Common presenting diagnosis for digital lacerations that may include nerve injury identified intraoperatively.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`64721`	Neuroplasty and/or transposition; median nerve at carpal tunnel	Performed when proximal nerve decompression or neuroplasty is required in addition to distal digital nerve repair in complex injuries.
`64831`	Repair of initial nerve in a finger or toe; first nerve repair	Often reported for the primary nerve repair during the same session; `64832` is used for the additional nerve repair.
`64719`	Neuroplasty, other peripheral nerve (eg, tibial, peroneal, radial)	May be used for associated peripheral nerve procedures in the same limb when clinically necessary.
`26010`	Repair, tendon, flexor, hand; primary or secondary, single tendon	Frequently performed concomitantly when digital tendons are injured alongside nerves during hand trauma.
`26580`	Repair of nerve with direct suture under operating microscope (digital nerve) — (Note: example microsurgical technique code)	Performed when microsurgical techniques or operating microscope are used for precise digital nerve coaptation.

Related Codes

CPT-64831-FINGER-TOE-NERVE-REPAIR

CPT 64831: Repair of Nerve in Finger or Toe

CPT-64834-SENSORY-NERVE-REPAIR-HAND-FOOT

CPT 64834: Sensory Nerve Repair of Hand or Foot

CPT-64835-MEDIAN-NERVE-BRANCH-REPAIR-THUMB-MOTOR-SENSORY

CPT 64835: Repair of Median Nerve Branch for Thumb Function

CPT-64836-ULNAR-MOTOR-NERVE-REPAIR

CPT 64836: Ulnar Motor Nerve Repair

CPT-64837-ADD-ON-HAND-FOOT-NERVE-REPAIR-ADDITIONAL-NERVE-SUTURE-REPAIR

CPT 64837: Add-on Repair of Additional Hand or Foot Nerve with Sutures

CPT-64840-POSTERIOR-TIBIAL-NERVE-REPAIR-SUTURING

CPT 64840: Posterior Tibial Nerve Repair, Suturing

CPT-64856-PERIPHERAL-NERVE-REPAIR-WITH-TRANSPOSITION

CPT 64856: Major Peripheral Nerve Repair with Transposition

CPT-64857-PERIPHERAL-NERVE-REPAIR-ARM-LEG

CPT 64857: Major Peripheral Nerve Repair of Arm or Leg

CPT-64858-SCIATIC-NERVE-REPAIR

CPT 64858: Repair of Sciatic Nerve

CPT-64859-PERIPHERAL-NERVE-REPAIR-ADD-ON

CPT 64859: Repair of Additional Peripheral Nerves (Add-on)

Showing 1–10 of 19

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.