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Official Description

Repair or advancement, flexor tendon, in zone 2 digital flexor tendon sheath (eg, no man's land); secondary, without free graft, each tendon

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 26357 refers to the surgical procedure for the repair or advancement of a flexor tendon located in zone 2 of the digital flexor tendon sheath, commonly known as "no man's land." This area is critical for hand function and is defined as the region between the insertion of the flexor digitorum superficialis tendon and the proximal A1 pulley, extending from the proximal end of the proximal phalanx to the distal end of the middle phalanx. Injuries to the flexor tendons in this zone can result from partial or complete lacerations, tears, or ruptures, which may severely impact a patient's ability to flex their fingers. The procedure coded as 26357 is specifically categorized as a secondary repair, which is performed more than two weeks after the initial injury. This contrasts with primary repairs, which are typically conducted within 24 hours of the injury unless complications such as gross contamination necessitate a delay of up to two weeks. During the surgical intervention, the tendon is accessed 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 require additional incisions if the proximal end has retracted. The repair involves approximating and suturing the tendon ends together, ensuring proper alignment and tension to restore function. This procedure is crucial for patients who have sustained significant tendon injuries, as it aims to restore the integrity and functionality of the flexor tendon, thereby improving hand movement and overall quality of life.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure coded as CPT® 26357 is indicated for patients who have sustained injuries to the flexor tendons in zone 2 of the digital flexor tendon sheath. The specific indications for this procedure include:

  • Partial or Complete Laceration: Injuries where the tendon is either partially or completely severed, affecting the ability to flex the fingers.
  • Tear or Rupture: Situations where the tendon has been torn or ruptured, leading to loss of function in the affected digit.
  • Delayed Presentation: Cases where the repair is performed more than two weeks after the initial injury, classifying it as a secondary repair.

2. Procedure

The procedure for CPT® 26357 involves several critical steps to ensure effective repair of the flexor tendon. The steps are as follows:

  • Step 1: Incision and Exposure - The surgeon begins by making a volar zigzag or lateral incision to access the flexor tendon. This incision allows for adequate exposure of the tendon while minimizing damage to surrounding tissues.
  • Step 2: Dissection - Once the incision is made, the surgeon carefully dissects the soft tissues surrounding the tendon. This step is crucial to protect the neurovascular structures that are located in close proximity to the tendon.
  • Step 3: Identification of Tendon Ends - The next step involves locating the distal and proximal ends of the severed tendon. If the proximal end has retracted and is not visible through the initial incision, a separate incision may be necessary to locate it.
  • Step 4: Tendon Repair - After identifying the tendon ends, the surgeon proceeds with the secondary suture repair. The distal and proximal ends of the tendon are approximated and sutured together, ensuring that the tendon is aligned properly to restore its function.

3. Post-Procedure

Following the procedure coded as CPT® 26357, patients typically require careful monitoring and post-operative care to ensure proper healing. This may include immobilization of the affected digit to prevent strain on the repaired tendon. Patients are often advised on rehabilitation exercises to gradually restore movement and strength to the finger. The recovery process may vary depending on the extent of the injury and the individual’s healing response, but close follow-up with the healthcare provider is essential to assess the success of the repair and to manage any complications that may arise.

Short Descr REPAIR FINGER/HAND TENDON
Medium Descr RPR/ADVMNT FLXR TDN ZONE 2 W/O FR GRFT EA TENDON
Long Descr Repair or advancement, flexor tendon, in zone 2 digital flexor tendon sheath (eg, no man's land); secondary, without free 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) 0 - Co-surgeons not permitted for this procedure.
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) P3D - Major procedure, orthopedic - other
MUE 2
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
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).
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.)
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
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)
SG Ambulatory surgical center (asc) facility service
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
Date
Action
Notes
2004-01-01 Changed Code description changed.
2002-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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