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Official Description

Lengthening or shortening of tendon, leg or ankle; multiple tendons (through same incision), each

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 27686 involves the surgical lengthening or shortening of multiple tendons in the leg or ankle, performed through a single incision. This intervention is typically indicated for correcting flexion or extension deformities of the ankle, which may arise from various conditions, including the late effects of injuries or chronic diseases such as severe rheumatoid arthritis or osteoarthritis. The surgical approach begins with making a skin incision over the targeted tendon, followed by careful dissection of the surrounding soft tissues to expose the tendon. For lengthening, a Z-shaped incision is created in the tendon, allowing the tendon fibers to separate and elongate as the ankle is flexed or extended. This technique is crucial for restoring proper function and alignment of the ankle. Conversely, if shortening is required, the tendon is divided, and the ends are overlapped and sutured together to achieve the desired length. Post-surgery, the ankle is immobilized in a splint or cast to ensure stability and promote healing. It is important to note that CPT® Code 27686 is specifically used for procedures involving multiple tendons, while CPT® Code 27685 is designated for the lengthening or shortening of a single tendon in the leg or ankle.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure is indicated for the correction of flexion or extension deformities in the ankle, which may be caused by various underlying conditions. These include:

  • Late Effects of Injuries Deformities resulting from previous trauma to the ankle or leg that have led to abnormal positioning or function.
  • Severe Rheumatoid Arthritis A chronic inflammatory disorder that can lead to joint deformities and functional impairments in the ankle.
  • Osteoarthritis A degenerative joint disease that can cause pain, stiffness, and deformity in the ankle joint, necessitating surgical intervention.

2. Procedure

The procedure for lengthening or shortening multiple tendons in the leg or ankle involves several key steps:

  • Step 1: Incision A skin incision is made over the tendon or tendons that require lengthening or shortening. This incision allows access to the underlying structures while minimizing damage to surrounding tissues.
  • Step 2: Dissection The surgeon carefully dissects the soft tissues surrounding the tendon to expose it fully. This step is critical to ensure that the tendon can be manipulated without compromising its integrity.
  • Step 3: Lengthening Technique For lengthening, a Z-shaped incision is made in the tendon. This technique allows the tendon fibers to slide apart, effectively lengthening the tendon as the ankle is flexed or extended. The surgeon then places sutures to secure the tendon in its new, elongated position.
  • Step 4: Shortening Technique If shortening is necessary, the tendon is divided, and the ends are overlapped. The surgeon sutures the overlapped ends together to achieve the desired tendon length.
  • Step 5: Immobilization After the tendon has been adjusted, the ankle is immobilized in a splint or cast. This immobilization is essential to maintain the ankle in the desired position and to facilitate proper healing of the tendon.

3. Post-Procedure

Post-procedure care involves monitoring the surgical site for signs of infection and ensuring that the immobilization device remains intact. Patients are typically advised to limit movement of the ankle to promote healing. Follow-up appointments are necessary to assess the healing process and to determine when rehabilitation exercises can begin. The duration of immobilization may vary based on the extent of the procedure and the individual patient's healing response.

Short Descr REVISE LOWER LEG TENDONS
Medium Descr LNGTH/SHRT TDN LEG/ANKLE MLT TDN SAME INC EA
Long Descr Lengthening or shortening of tendon, leg or ankle; multiple tendons (through same incision), each
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) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies 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 3
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
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.
RT Right side (used to identify procedures performed on the right side of the body)
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).
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. 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.
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).
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
GW Service not related to the hospice patient's terminal condition
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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