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Official Description

Nerve graft (includes obtaining graft), single strand, arm or leg; up to 4 cm length

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 64892 involves the surgical repair of a nerve in the arm or leg using a single strand nerve graft that measures up to 4 cm in length. This technique is employed to facilitate a tension-free repair of an injured nerve, which is crucial for restoring proper nerve function. During the procedure, the surgeon first exposes the injured nerve and assesses the extent of the damage. If necessary, any damaged tissue is carefully removed through a process known as debridement. To evaluate the function of the nerve, additional nerve testing and monitoring may be performed, which are reported separately. The procedure also involves the use of microscopic visualization to ensure precision in the dissection of the healthy proximal and distal segments of the nerve, which are freed from surrounding tissue. The length of the required nerve graft is then determined, and the graft is harvested from a donor site where the nerve is exposed and dissected free of surrounding tissue. After the graft is obtained, it is sutured end-to-end to the severed ends of the injured nerve. Finally, the overlying soft tissues and skin are meticulously repaired in layers to complete the surgical procedure. It is important to use CPT® Code 64892 specifically when the length of the single strand nerve graft is 4 cm or less, while CPT® Code 64893 should be used for grafts exceeding this length.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 64892 is indicated for the repair of a nerve in the arm or leg that has sustained injury. The specific indications for performing this nerve grafting procedure include:

  • Injury to the Nerve: This procedure is performed when there is a need to repair a damaged nerve due to trauma or injury.
  • Loss of Nerve Continuity: It is indicated when there is a gap in the nerve continuity that cannot be repaired by direct suturing.
  • Neuropathy: Conditions that lead to nerve dysfunction may necessitate the use of a nerve graft to restore function.

2. Procedure

The procedure for CPT® Code 64892 involves several critical steps to ensure successful nerve repair:

  • Step 1: Exposure of the Injured Nerve - The surgeon begins by making an incision to expose the injured nerve. This allows for a thorough evaluation of the extent of the nerve damage.
  • Step 2: Debridement of Damaged Tissue - If there is any damaged or necrotic tissue surrounding the nerve, it is carefully debrided to prepare the site for grafting.
  • Step 3: Nerve Testing and Monitoring - Separately reportable nerve testing and monitoring may be conducted to assess the function of the nerve and guide the surgical approach.
  • Step 4: Dissection of Healthy Nerve Segments - Using microscopic visualization, the surgeon dissects the healthy proximal and distal segments of the nerve free from surrounding tissue, ensuring that they are adequately prepared for grafting.
  • Step 5: Harvesting the Nerve Graft - The surgeon then identifies the appropriate length of the nerve graft needed, exposes the donor nerve, and dissects it free from surrounding tissue. The graft is then divided proximally and distally to be harvested.
  • Step 6: Suturing the Nerve Graft - The harvested single strand nerve graft is sutured end-to-end to the severed ends of the injured nerve, facilitating the reconnection of the nerve fibers.
  • Step 7: Repair of Overlying Tissues - Finally, the overlying soft tissues and skin are repaired in layers to ensure proper healing and restore the integrity of the area.

3. Post-Procedure

After the completion of the nerve grafting procedure, patients can expect a recovery period that may involve monitoring for signs of nerve function restoration. Post-operative care typically includes pain management, wound care, and possibly physical therapy to aid in rehabilitation. The surgeon will provide specific instructions regarding activity restrictions and follow-up appointments to assess the healing process and the effectiveness of the nerve repair.

Short Descr NRV GRF 1STRND ARM/LEG <4CM
Medium Descr NERVE GRAFT 1 STRAND ARM/LEG <4 CM
Long Descr Nerve graft (includes obtaining graft), single strand, arm or leg; up to 4 cm length
Status Code Active Code
Global Days 090 - Major Surgery
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 2 - Payment restriction for assistants at surgery does not apply to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Device-intensive procedure added to ASC list in CY 2008 or later; paid at adjusted rate.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE 2
CCS Clinical Classification 9 - Other OR therapeutic nervous system procedures

This is a primary code that can be used with these additional add-on codes.

0882T New Code for 2024 Add on code MPFS Status: Carrier Priced APC N ASC N1 Intraoperative therapeutic electrical stimulation of peripheral nerve to promote nerve regeneration, including lead placement and removal, upper extremity, minimum of 10 minutes; initial nerve (List separately in addition to code for primary procedure)
64901 Addon Code MPFS Status: Active Code APC N ASC N1 CPT Assistant Article Illustration for Code Nerve graft, each additional nerve; single strand (List separately in addition to code for primary procedure)
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
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Notes
2024-01-01 Changed Short Description changed.
2013-01-01 Changed Short Descriptor changed.
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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