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Official Description

Suture of nerve; requiring extensive mobilization, or transposition of nerve (List separately in addition to code for nerve suture)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 64874 refers to the surgical procedure involving the suture of a nerve that necessitates extensive mobilization or transposition of the nerve. This procedure is typically required when a standard nerve suture cannot be performed due to tension on the nerve, which can occur when the nerve ends are not in close proximity to each other after an injury. In such cases, additional surgical techniques are employed to ensure that the nerve can be sutured without tension, which is critical for optimal healing and function. The mobilization process involves carefully freeing the nerve from surrounding tissues both distally and proximally, allowing for greater flexibility and movement of the nerve. If this mobilization alone does not suffice to achieve a tension-free repair, the nerve may be transposed, meaning it is rerouted through a different pathway, which may include creating a soft tissue tunnel. This procedure is often performed under microscopic visualization to enhance precision and minimize damage to surrounding structures. The complexity of this procedure underscores the need for careful planning and execution to ensure successful nerve repair and recovery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 64874 is indicated in specific scenarios where nerve repair is necessary but complicated by tension on the nerve ends. The following conditions may warrant the use of this code:

  • Severe Nerve Injury - When a nerve has been significantly damaged, requiring surgical intervention to restore function.
  • Insufficient Proximity of Nerve Ends - When the ends of the injured nerve are too far apart to be sutured directly without tension.
  • Presence of Adhesions or Scar Tissue - When the nerve is encased in scar tissue, necessitating mobilization to free it for proper repair.

2. Procedure

The procedure for CPT® Code 64874 involves several critical steps to ensure successful nerve repair. Each step is designed to address the complexities associated with nerve injuries that require extensive mobilization or transposition.

  • Step 1: Exposure of the Injured Nerve - The surgical site is prepared, and the injured nerve is carefully exposed to allow for direct access. This step is crucial for assessing the extent of the injury and planning the subsequent surgical maneuvers.
  • Step 2: External Neurolysis - Once the nerve is exposed, external neurolysis is performed. This involves meticulously freeing the nerve from any adhesions or scar tissue that may be restricting its movement. This step is often conducted under microscopic visualization to enhance precision and minimize damage to surrounding tissues.
  • Step 3: Mobilization of the Nerve - After neurolysis, the next step is to mobilize the nerve extensively. This involves freeing the nerve from surrounding tissue both distally and proximally until sufficient mobilization is achieved. The goal is to create enough slack in the nerve to allow for a tension-free suture repair.
  • Step 4: Transposition of the Nerve (if necessary) - If mobilization alone does not provide a tension-free repair, the nerve may need to be transposed. This may involve rerouting the nerve through a soft tissue tunnel, which allows for better positioning of the nerve ends for suturing.

3. Post-Procedure

Post-procedure care following the suture of a nerve with extensive mobilization or transposition is critical for recovery. Patients may require monitoring for signs of nerve function restoration and potential complications. Rehabilitation may include physical therapy to regain strength and mobility in the affected area. The surgical site should be kept clean and dry, and any signs of infection or unusual pain should be reported to the healthcare provider promptly. Follow-up appointments are essential to assess the healing process and the effectiveness of the nerve repair.

Short Descr REPAIR & REVISE NERVE ADD-ON
Medium Descr SUTURE NERVE REQ XTNSV MOBIL/TRPOS NERVE
Long Descr Suture of nerve; requiring extensive mobilization, or transposition of nerve (List separately in addition to code for nerve suture)
Status Code Active Code
Global Days ZZZ - Code Related to Another Service
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No 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 Items and Services Packaged into APC Rates
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE 1
CCS Clinical Classification 9 - Other OR therapeutic nervous system procedures

This is an add-on code that must be used in conjunction with one of these primary codes.

64831 MPFS Status: Active Code APC J1 ASC A2 CPT Assistant Article Illustration for Code Suture of digital nerve, hand or foot; 1 nerve
64832 Addon Code MPFS Status: Active Code APC N ASC N1 CPT Assistant Article Illustration for Code Suture of digital nerve, hand or foot; each additional digital nerve (List separately in addition to code for primary procedure)
64834 MPFS Status: Active Code APC J1 ASC A2 Illustration for Code Suture of 1 nerve; hand or foot, common sensory nerve
64835 MPFS Status: Active Code APC J1 ASC A2 Suture of 1 nerve; median motor thenar
64836 MPFS Status: Active Code APC J1 ASC A2 Suture of 1 nerve; ulnar motor
64837 Addon Code MPFS Status: Active Code APC N ASC N1 Illustration for Code Suture of each additional nerve, hand or foot (List separately in addition to code for primary procedure)
64840 MPFS Status: Active Code APC J1 ASC A2 Illustration for Code Suture of posterior tibial nerve
64856 MPFS Status: Active Code APC J1 ASC A2 Illustration for Code Suture of major peripheral nerve, arm or leg, except sciatic; including transposition
64857 MPFS Status: Active Code APC J1 ASC A2 Illustration for Code Suture of major peripheral nerve, arm or leg, except sciatic; without transposition
64858 MPFS Status: Active Code APC J1 ASC A2 Illustration for Code Suture of sciatic nerve
64859 Addon Code MPFS Status: Active Code APC N ASC N1 Suture of each additional major peripheral nerve (List separately in addition to code for primary procedure)
64861 MPFS Status: Active Code APC J1 ASC A2 Suture of; brachial plexus
64862 MPFS Status: Active Code APC J1 ASC A2 Suture of; lumbar plexus
64864 MPFS Status: Active Code APC J1 ASC A2 Suture of facial nerve; extracranial
64865 MPFS Status: Active Code APC J1 ASC J8 Suture of facial nerve; infratemporal, with or without grafting
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.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
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
CR Catastrophe/disaster related
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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