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Official Description

Repair or advancement, flexor tendon, not in zone 2 digital flexor tendon sheath (eg, no man's land); secondary with free graft (includes obtaining graft), each tendon

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Repair or advancement of the flexor tendon, specifically coded as CPT® Code 26352, refers to a surgical procedure aimed at addressing injuries to the flexor tendons in the hand that are not located within zone 2 of the digital flexor tendon sheath, commonly referred to as "no man's land." This procedure is particularly relevant for cases involving partial or complete lacerations, tears, or ruptures of the flexor tendons. The flexor tendons are categorized into zones based on their anatomical location, with zone 1 encompassing injuries distal to the insertion of the flexor digitorum superficialis (FDS) tendon, which primarily involves the profundus tendon. Zone 3 pertains to injuries occurring in the palm, extending from the distal carpal ligament to the distal palmar crease. The timing of the repair is crucial; primary repairs are ideally conducted within 24 hours of the injury, although in cases of significant wound contamination, this may be postponed for up to two weeks. Secondary repairs, as indicated by this code, are performed more than two weeks post-injury. The surgical approach typically involves exposing the tendon through a volar zigzag or lateral incision, with careful dissection of the surrounding soft tissues to protect vital neurovascular structures. The surgeon locates the distal and proximal ends of the severed tendon, which may necessitate an additional incision if the proximal end has retracted. In the context of CPT® Code 26352, the procedure involves a secondary repair utilizing a free graft, which includes the harvesting of a tendon graft—often the palmaris longus from the distal forearm. This graft is then meticulously attached to the affected flexor muscle, usually at the wrist, and tunneled to the appropriate site for secure attachment, ensuring proper healing and function of the tendon.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure coded as CPT® Code 26352 is indicated for specific conditions related to flexor tendon injuries that necessitate surgical intervention. The following are the explicit indications for performing this procedure:

  • Partial or Complete Laceration of the flexor tendon, which may impair hand function and require surgical repair.
  • Tear or Rupture of the flexor tendon, indicating a need for reconstruction to restore tendon integrity and functionality.
  • Injuries in Zone 1 or Zone 3 of the flexor tendon, where the repair or advancement is necessary due to the anatomical location of the injury.
  • Secondary Repair performed more than two weeks after the initial injury, particularly when primary repair is not feasible due to the timing of the intervention.

2. Procedure

The procedure for CPT® Code 26352 involves several critical steps to ensure effective repair of the flexor tendon using a free graft. The following outlines the procedural steps:

  • Step 1: Exposure of the Tendon Injury - The surgical site is accessed through a volar zigzag or lateral incision, allowing the surgeon to visualize the tendon injury. Care is taken to dissect the surrounding soft tissues while protecting the neurovascular structures that may be present in the area.
  • Step 2: Identification of Tendon Ends - The surgeon locates the distal and proximal ends of the severed tendon. If the proximal end has retracted and is not accessible through the initial incision, a separate incision may be necessary to retrieve it.
  • Step 3: Harvesting the Graft - A tendon graft is harvested, typically from the palmaris longus tendon located in the distal forearm. This graft will be used to bridge the gap created by the tendon injury.
  • Step 4: Attachment of the Graft - The harvested graft is then attached to the affected flexor muscle, usually at the wrist. The graft is tunneled to the appropriate site where it will be secured to the tendon, ensuring proper alignment and tension.
  • Step 5: Securing the Graft - Finally, the graft is secured at the attachment site using sutures, ensuring stability and promoting healing of the tendon repair.

3. Post-Procedure

After the completion of the procedure coded as CPT® Code 26352, post-operative care is essential for optimal recovery. Patients are typically monitored for any signs of complications, such as infection or graft failure. Rehabilitation may be initiated based on the surgeon's recommendations, which often includes physical therapy to restore range of motion and strength in the affected hand. The recovery process may vary depending on the extent of the injury and the individual patient's healing response. Follow-up appointments are crucial to assess the healing of the tendon and the success of the graft integration.

Short Descr REPAIR/GRAFT HAND TENDON
Medium Descr RPR/ADVMNT FLXR TDN N/Z/2 W/FR GRAFT EA TENDON
Long Descr Repair or advancement, flexor tendon, not in zone 2 digital flexor tendon sheath (eg, no man's land); secondary with free graft (includes obtaining graft), each tendon
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 Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5B - Ambulatory procedures - musculoskeletal
MUE 2
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
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.
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.
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.)
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.)
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
F1 Left hand, second digit
F2 Left hand, third digit
F3 Left hand, fourth digit
F4 Left hand, fifth digit
F5 Right hand, thumb
F6 Right hand, second digit
F7 Right hand, third digit
F8 Right hand, fourth digit
F9 Right hand, fifth digit
FA Left hand, thumb
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
Date
Action
Notes
2002-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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