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Official Description

Repair of nonunion or malunion, tibia; without graft, (eg, compression technique)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 27720 refers to the surgical procedure for the repair of nonunion or malunion of the tibia without the use of a graft, specifically utilizing a compression technique. A nonunion occurs when the fracture fragments fail to unite after an adequate healing period, while a malunion is characterized by improper alignment of the fracture fragments, leading to potential complications such as osseous abnormalities, incongruity of articular surfaces, soft tissue contracture, and nerve impingement. In this procedure, the original fracture site in the tibia is surgically exposed to assess the condition of the nonunion or malunion. The evaluation determines the appropriate method of repair required for the specific case. The procedure involves the application of internal fixation devices, such as a compression plate, to stabilize the fracture site. For nonunions, a compression plate is affixed over the fracture and secured with lag screws, while for malunions, the tibia may be refractured and realigned, followed by the placement of internal fixation to maintain proper anatomical alignment. After the fixation device is placed, the stability of the fracture is assessed, and alignment is confirmed through radiographic imaging, ensuring that the repair is effective and the bone is positioned correctly for optimal healing.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 27720 is indicated for the following conditions:

  • Nonunion of the Tibia: This condition occurs when the fracture fragments do not unite after an adequate healing period, necessitating surgical intervention to promote healing.
  • Malunion of the Tibia: This condition arises when the fracture fragments heal in an improper alignment, leading to potential complications that may require surgical correction to restore proper anatomical alignment.

2. Procedure

The procedure for CPT® Code 27720 involves several critical steps to ensure effective repair of the nonunion or malunion of the tibia:

  • Step 1: Exposure of the Fracture Site - The surgical approach begins with an incision to expose the original fracture site in the tibia. This allows the surgeon to directly visualize the nonunion or malunion and assess the condition of the bone fragments.
  • Step 2: Evaluation of the Nonunion or Malunion - Once the fracture site is exposed, the surgeon evaluates the extent of the nonunion or malunion. This assessment is crucial in determining the appropriate method of repair and whether any additional procedures, such as refracturing, are necessary.
  • Step 3: Application of Internal Fixation - For a nonunion, a compression plate is placed over the fracture site. The plate is secured using lag screws to stabilize the fracture and promote healing. In cases of malunion, the tibia may be refractured to realign the bone fragments properly, followed by the placement of internal fixation to maintain this alignment.
  • Step 4: Verification of Stability and Alignment - After the fixation device is applied, the surgeon checks the stability of the fracture. Radiographic imaging is performed to confirm that the alignment is correct and that the fixation is secure, ensuring optimal conditions for healing.

3. Post-Procedure

Post-procedure care following the repair of nonunion or malunion of the tibia involves monitoring the surgical site for signs of infection and ensuring that the fixation remains stable. Patients may be advised on weight-bearing restrictions and rehabilitation protocols to facilitate recovery. Follow-up appointments are essential to assess healing through imaging studies and to make any necessary adjustments to the treatment plan. The overall goal is to achieve proper bone union and restore function to the affected limb.

Short Descr REPAIR OF TIBIA
Medium Descr REPAIR NONUNION/MALUNION TIBIA W/O GRAFT
Long Descr Repair of nonunion or malunion, tibia; without graft, (eg, compression technique)
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) 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 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)

This is a primary code that can be used with these additional add-on codes.

20702 Add-on Code MPFS Status: Active Code APC N Manual preparation and insertion of drug-delivery device(s), intramedullary (List separately in addition to code for primary procedure)
20703 Add-on Code MPFS Status: Active Code APC N Removal of drug-delivery device(s), intramedullary (List separately in addition to code for primary procedure)
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).
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).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) 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.
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).
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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
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
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