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Official Description

Tenolysis, complex, extensor tendon, finger, including forearm, each tendon

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Tenolysis is a surgical procedure aimed at releasing a tendon from scar tissue that has formed due to trauma or a disease process, ultimately restoring motion to the hand or finger. The procedure is particularly relevant for extensor tendons, which are responsible for extending the fingers. In the context of CPT® Code 26449, this complex tenolysis procedure is specifically performed on extensor tendons in the fingers, with the added complexity of addressing the proximal aspect of the tendon located in the forearm. This means that not only is the tendon in the finger treated, but the surgeon also addresses any adhesions or scar tissue that may have developed along the tendon as it travels from the forearm to the finger. The procedure begins with an incision made over the dorsal aspect of the affected finger, allowing for the dissection of soft tissues to expose the tendon. Once the tendon is visible, any scar tissue is lysed, and the range of motion is assessed. If further intervention is necessary, an additional incision is made in the forearm to access the proximal tendon segment, where further adhesions are lysed. The procedure concludes with the careful closure of the surgical wounds in layers, ensuring proper healing. CPT® Code 26449 should be reported for each extensor tendon in the finger that undergoes this complex tenolysis procedure.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure of tenolysis, particularly as described by CPT® Code 26449, is indicated for patients who have experienced a loss of motion in their fingers due to the formation of scar tissue around the extensor tendons. This condition may arise from various factors, including:

  • Trauma: Injuries to the hand or fingers that result in scarring around the tendons.
  • Disease Processes: Conditions such as rheumatoid arthritis or other inflammatory diseases that can lead to tendon adhesions.
  • Post-Surgical Complications: Previous surgeries on the hand or fingers that may have resulted in scar tissue formation affecting tendon mobility.

2. Procedure

The complex tenolysis procedure as outlined in CPT® Code 26449 involves several detailed steps to ensure effective release of the extensor tendon from scar tissue. The procedural steps include:

  • Step 1: An incision is made over the dorsal aspect of the affected finger. This initial incision allows access to the extensor tendon that requires treatment.
  • Step 2: Soft tissues surrounding the tendon are carefully dissected to expose the tendon itself. This step is crucial for visualizing the extent of the adhesions that need to be addressed.
  • Step 3: Once the tendon is exposed, any scar tissue or adhesions are lysed. This process involves cutting through the fibrous tissue that restricts the movement of the tendon.
  • Step 4: The range of motion of the finger is evaluated to assess the effectiveness of the initial tenolysis. If it is determined that further intervention is necessary, the procedure continues.
  • Step 5: An additional incision is made in the forearm to access the proximal aspect of the tendon. This step is essential for addressing any adhesions that may have formed along the tendon in the forearm.
  • Step 6: The tendon in the forearm is exposed, and any adhesions present are lysed. This ensures that the entire length of the tendon is free from scar tissue.
  • Step 7: The range of motion is again evaluated to confirm that the tendon can move freely after the additional tenolysis.
  • Step 8: Finally, the surgical wounds in both the finger and forearm are closed in layers to promote optimal healing and minimize complications.

3. Post-Procedure

After the complex tenolysis procedure, patients can expect a recovery period that may involve monitoring for signs of infection and managing pain. Rehabilitation may be necessary to restore full range of motion and strength in the affected finger. Physical therapy may be recommended to facilitate recovery and improve functional outcomes. Patients should follow their surgeon's post-operative care instructions closely, including any recommendations for wound care and activity restrictions to ensure proper healing.

Short Descr RELEASE FOREARM/HAND TENDON
Medium Descr TENOLYSIS CPLX XTNSR TENDON FINGER W/FOREARM EA
Long Descr Tenolysis, complex, extensor tendon, finger, including forearm, 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) 0 - Payment restriction for assistants at surgery applies 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) P5B - Ambulatory procedures - musculoskeletal
MUE 5
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).
RT Right side (used to identify procedures performed on the right side of the body)
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.
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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.
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
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)
SG Ambulatory surgical center (asc) facility service
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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Pre-1990 Added Code added.
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