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Official Description

Open treatment of acetabular fracture(s) involving anterior and posterior (two) columns, includes T-fracture and both column fracture with complete articular detachment, or single column or transverse fracture with associated acetabular wall fracture, with internal fixation

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 27228 pertains to the open treatment of complex acetabular fractures that involve both the anterior and posterior columns of the acetabulum. The acetabulum is a critical component of the hip joint, consisting of several anatomical structures, including the anterior (iliopubic) column, posterior (ilioischial) column, anterior wall, posterior wall, quadrilateral plate (medial wall), and dome. This code specifically addresses fractures that are more intricate than simple fractures, as they involve multiple fracture lines that can significantly compromise the stability and function of the hip joint. A two-column fracture, often referred to as a floating acetabular fracture, occurs when fracture lines extend into both the ilioischial line posteriorly and the iliopubic segment anteriorly, leading to a complete separation of the acetabulum from the iliac wing. Additionally, T-fractures are characterized by a transverse fracture accompanied by another fracture line that disrupts the quadrilateral surface, resulting in the separation of the anterior and posterior columns. The complexity of these fractures necessitates a surgical approach to ensure proper alignment and stabilization. The procedure involves making an incision over the hip joint to expose the fracture sites, followed by debridement and irrigation of the joint to remove any loose fragments. The fractured areas are then reduced, and anatomic alignment is confirmed through radiographic imaging before applying permanent fixation devices, which may include lag screws and plates. This comprehensive approach is essential for restoring the structural integrity of the acetabulum and facilitating optimal recovery and function of the hip joint.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 27228 is indicated for the treatment of complex acetabular fractures that involve multiple fracture lines and significant disruption of the acetabulum's structural integrity. The specific indications include:

  • Two Column Fractures These fractures involve both the anterior and posterior columns of the acetabulum, leading to a floating acetabular fracture that requires surgical intervention for stabilization.
  • T-Fractures Characterized by a transverse fracture with an additional fracture line disrupting the quadrilateral surface, necessitating open treatment to restore the anatomy of the acetabulum.
  • Single Column or Transverse Fractures with Associated Acetabular Wall Fracture These fractures involve a single column or transverse fracture that also disrupts the articular surface, requiring internal fixation to ensure proper healing and function.

2. Procedure

The open treatment of acetabular fractures as described by CPT® Code 27228 involves several critical procedural steps:

  • Incision and Exposure An incision is made over the hip joint to provide access to the acetabulum. This step is crucial for visualizing the fracture sites and allows the surgeon to perform the necessary repairs effectively.
  • Debridement and Irrigation Once the fracture sites are exposed, the hip joint is thoroughly debrided to remove any loose fragments and debris. The joint is then irrigated to ensure a clean surgical field, which is essential for reducing the risk of infection and promoting healing.
  • Fracture Reduction The next step involves the reduction of the fracture, where the surgeon carefully aligns the fractured bone fragments to restore the normal anatomy of the acetabulum. This alignment is critical for the proper function of the hip joint.
  • Radiographic Verification After the fracture has been reduced, the surgeon verifies the anatomic reduction through radiographic imaging. This step ensures that the alignment is correct before proceeding with fixation.
  • Application of Internal Fixation Devices Permanent fixation devices are then applied to stabilize the fracture. This may include the use of lag screws, where the outer cortex of the bone is over-drilled, and screws are inserted perpendicular to the fracture line. Alternatively, plate and screw fixation may be employed, where a reconstruction plate is placed along the acetabular surface and secured with lag screws. A second plate may also be used to secure the posterior column fracture.
  • Bone Grafts If necessary, separately reportable bone grafts may be utilized to further secure the fracture fragments and enhance the stability of the repair.

3. Post-Procedure

Post-procedure care following the open treatment of acetabular fractures includes monitoring for complications, managing pain, and facilitating rehabilitation. Patients are typically advised to limit weight-bearing activities on the affected hip to promote healing. Physical therapy may be initiated to restore mobility and strength, with a focus on gradual progression to full weight-bearing as tolerated. Follow-up appointments are essential to assess the healing process through imaging studies and to ensure that the fixation devices remain stable. Any signs of complications, such as infection or nonunion, should be addressed promptly to optimize recovery outcomes.

Short Descr TREAT HIP FRACTURE(S)
Medium Descr OPTX ACTBLR FX INVG ANT&POST 2 COLUMNS FX W/INT
Long Descr Open treatment of acetabular fracture(s) involving anterior and posterior (two) columns, includes T-fracture and both column fracture with complete articular detachment, or single column or transverse fracture with associated acetabular wall fracture, with internal fixation
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 Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 148 - Other fracture and dislocation procedure
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)
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.
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).
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).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 to the usual procedure number.
55 Postoperative management only: when 1 physician or other qualified health care professional performed the postoperative management and another performed the surgical procedure, the postoperative component may be identified by adding modifier 55 to the usual procedure number.
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.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 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).
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
CR Catastrophe/disaster related
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
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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
2013-01-01 Changed Medium Descriptor changed.
1993-01-01 Added First appearance in code book in 1993.
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