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Official Description

Open treatment of fracture of weight bearing articular surface/portion of distal tibia (eg, pilon or tibial plafond), with internal fixation, when performed; of fibula only

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

An open treatment of a fracture of the weight-bearing articular surface of the distal tibia, commonly known as a tibial plafond or tibial pilon fracture, involves a surgical procedure to repair the damaged bone. This type of fracture typically occurs due to high-energy impacts, such as falls from significant heights or motor vehicle accidents, where the distal tibia absorbs the force of the impact. When the axial force exceeds the bone's yield point, it results in a shattering of the bone, which can also affect the fibula, depending on the position of the foot and the severity of the force applied. These fractures are characterized by not only the break in the bone but also often involve severe injuries to the articular cartilage and surrounding soft tissues at the ankle joint. During the open treatment procedure, the surgeon makes an incision to access the fractured area, allowing for direct visualization and manipulation of the bone fragments. Internal fixation methods, such as plates and screws, are employed to stabilize the fracture and restore the anatomical alignment of the bone. The procedure may involve treating the fibula only, the tibia only, or both bones, depending on the extent of the injury. The goal of the surgery is to ensure proper healing, restore function, and minimize complications associated with joint instability and soft tissue damage.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The open treatment of a fracture of the weight-bearing articular surface of the distal tibia is indicated for the following conditions:

  • Tibial Pilon Fracture - A fracture involving the distal tibia that affects the weight-bearing surface, often resulting from high-energy trauma.
  • Severe Articular Cartilage Injury - Damage to the cartilage at the ankle joint that may accompany the fracture, necessitating surgical intervention for proper repair.
  • Fibula Fracture - A fracture of the fibula that may occur simultaneously with the tibial fracture, which may require open reduction and internal fixation.

2. Procedure

The procedure for the open treatment of a tibial plafond fracture involves several critical steps:

  • Step 1: Incision and Exposure - An incision is made over the lateral aspect of the ankle to access the fibula. The superficial peroneal and sural nerves are carefully isolated and protected to prevent nerve damage during the procedure.
  • Step 2: Fracture Assessment - The fibula fracture is exposed, and any debris is cleared from the fracture site. The joint is inspected to assess the stability of the joint surface, which is crucial for proper healing.
  • Step 3: Fracture Reduction - The fracture is reduced, and the proper length of the fibula is restored. This may involve the use of a femoral distraction device to assist in achieving the correct alignment.
  • Step 4: Internal Fixation - Internal fixation is applied as needed, typically using a plate and screw fixation device. Additional interfragmentary screws may be utilized to enhance stability.
  • Step 5: Tibia Treatment (if applicable) - If the tibia is also treated, an anterior or anteromedial incision is made over the ankle joint. Neurovascular structures are again isolated and protected. The tibia fracture is exposed, and debris is cleared.
  • Step 6: Articular Surface Restoration - The articular surface of the tibia is restored with minimal soft tissue dissection to preserve surrounding structures. Internal fixation is applied, usually with a buttress plate and screws, along with interfragmentary screws as necessary.
  • Step 7: Bone Grafting (if needed) - Separately reportable bone grafts may be utilized to restore the metaphysis if there is significant bone loss or instability.
  • Step 8: Final Checks and Closure - Joint stability is thoroughly checked before the wound is irrigated and the incision is closed, ensuring that the surgical site is clean and free of contaminants.

3. Post-Procedure

Post-procedure care involves monitoring the surgical site for signs of infection and ensuring proper healing of the fracture. Patients may require immobilization of the ankle joint to promote stability and healing. Rehabilitation may be necessary to restore function and strength to the ankle following the recovery period. Follow-up appointments are essential to assess the healing process and to make any necessary adjustments to the treatment plan.

Short Descr TREAT LOWER LEG FRACTURE
Medium Descr OPEN TREATMENT FRACTURE DISTAL TIBIA FIBULA
Long Descr Open treatment of fracture of weight bearing articular surface/portion of distal tibia (eg, pilon or tibial plafond), with internal fixation, when performed; of fibula only
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) 2 - Payment restriction for assistants at surgery does not apply to this procedure...
Co-Surgeons (62) 2 - Co-surgeons permitted and no documentation required if the two- specialty requirement is met.
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 Device-intensive procedure added to ASC list in CY 2008 or later; paid at adjusted rate.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 147 - Treatment, fracture or dislocation of lower extremity (other than hip or femur)
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
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
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
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
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
2008-01-01 Changed Code description changed.
1993-01-01 Added First appearance in code book in 1993.
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