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Official Description

Repair, flexor tendon, leg; secondary, with or without graft, each tendon

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 27659 involves the secondary repair of flexor tendons in the leg, which are crucial for the movement and function of the ankle and toes. Flexor tendons are responsible for bending the toes and facilitating various movements of the foot. Common flexor tendons in the lower leg include the peroneus longus, peroneus brevis, plantaris, popliteus, flexor digitorum longus, flexor hallucis longus, and tibialis posterior. Injuries to these tendons can occur due to lacerations, puncture wounds, or closed injuries such as avulsions, leading to partial or complete transection of the tendons. The surgical procedure begins with an incision over the site of the injury, allowing the surgeon to access the affected tendon. If the tendon is completely severed, the ends are located and sutured together. In cases of partial transection, the surgeon repairs the damaged fibers. If the muscle itself is involved, it is repaired in layers to restore function. If the initial repair does not yield satisfactory functional results, a secondary repair may be necessary, which can involve the use of a graft. This process includes harvesting a tendon graft, attaching it to the remnants of the severed tendon, and ensuring proper tension and range of motion before closing the surgical site. The leg and ankle are then immobilized to promote healing.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure is indicated for the following conditions:

  • Lacerations that result in partial or complete transection of one or more flexor tendons in the leg.
  • Puncture wounds that may damage the integrity of the flexor tendons.
  • Closed injuries such as avulsions that affect the flexor tendons.
  • Failure of primary repair of a flexor tendon, necessitating a secondary repair to restore function.

2. Procedure

The procedure involves several key steps to ensure proper repair of the flexor tendon:

  • Step 1: Incision An incision is made over the site of the flexor tendon or muscle injury to provide access to the damaged area.
  • Step 2: Identification of the Tendon If the tendon has been completely transected, the surgeon locates the severed ends of the flexor tendon, grasping and pulling them distally or proximally to facilitate repair.
  • Step 3: Suture Repair The severed ends of the tendon are then sutured together. In cases of partial transection, the surgeon repairs the transected fibers to restore continuity.
  • Step 4: Muscle Repair If the muscle itself has been lacerated or torn, the muscle tissue is repaired in layers to ensure proper healing and function.
  • Step 5: Grafting (if necessary) If a functional result is not achieved from the primary repair, a tendon graft may be harvested and attached to the remnants of the severed tendon, followed by attachment at the distal insertion site.
  • Step 6: Range of Motion Testing After the repair, the range of motion is tested, and tension is adjusted as needed to ensure good mobility in the ankle and toes.
  • Step 7: Closure The surgical wound is closed in layers to promote healing, and the leg and ankle are immobilized using a splint or cast to support recovery.

3. Post-Procedure

Post-procedure care involves monitoring the surgical site for signs of infection and ensuring proper healing. The immobilization of the leg and ankle is crucial to prevent movement that could disrupt the repair. Patients may be advised on rehabilitation exercises to gradually restore range of motion and strength as healing progresses. Follow-up appointments are necessary to assess the success of the repair and to make any adjustments to the treatment plan as needed.

Short Descr REPAIR OF LEG TENDON EACH
Medium Descr RPR FLEXOR TENDON LEG SECONDARY W/O GRAFT EACH
Long Descr Repair, flexor tendon, leg; secondary, with or without 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
LT Left side (used to identify procedures performed on the left side of the body)
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).
RT Right side (used to identify procedures performed on the right side of the body)
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.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
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.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
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).
AG Primary physician
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
SG Ambulatory surgical center (asc) facility service
T1 Left foot, second digit
T2 Left foot, third digit
T3 Left foot, fourth digit
T4 Left foot, fifth digit
T6 Right foot, second digit
T7 Right foot, third digit
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
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
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