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Official Description

Open treatment of rib fracture(s) with internal fixation, includes thoracoscopic visualization when performed, unilateral; 4-6 ribs

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 21812 involves the open treatment of rib fractures, specifically addressing cases where there are 4 to 6 fractures present. This surgical intervention is characterized by the use of open reduction and internal fixation (ORIF) techniques, which are essential for properly aligning and stabilizing the fractured ribs. The term 'unilateral' indicates that the procedure is performed on one side of the rib cage. In some instances, thoracoscopic visualization may be utilized during the surgery, allowing the surgeon to examine the pleural cavity for any potential complications such as bleeding or damage to surrounding visceral organs. The surgical approach begins with a standard thoracotomy incision, which is made over the area of injury, and involves careful dissection through the skin, subcutaneous tissue, and fascia to access the ribs. The procedure requires meticulous attention to avoid damaging the intercostal neurovascular bundles, which are critical structures located along the inferior aspect of the ribs. Once the fractures are exposed, the surgeon cleans the fracture sites, removes any nonunion fibrous tissue, and then mobilizes, reduces, and secures the fractured rib ends using various fixation devices. The closure of the surgical site involves reapproximating the muscles, closing the fascia and subcutaneous tissue with interrupted stitches, and finally securing the skin with staples. This comprehensive approach ensures that the rib fractures are effectively treated, promoting optimal healing and recovery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The open treatment of rib fractures with internal fixation, as described by CPT® Code 21812, is indicated for patients presenting with the following conditions:

  • Multiple Rib Fractures: The procedure is specifically indicated for patients with 4 to 6 rib fractures that require surgical intervention to ensure proper alignment and stabilization.
  • Unilateral Rib Injury: This procedure is performed on one side of the rib cage, making it suitable for patients with unilateral rib fractures.
  • Complications from Fractures: Indications may include the presence of complications such as significant displacement of the fractured ribs, nonunion, or associated injuries to the pleura or visceral organs that necessitate surgical evaluation and repair.

2. Procedure

The procedure for the open treatment of rib fractures with internal fixation involves several critical steps:

  • Incision: A standard thoracotomy incision is made in the skin over the area of rib injury. This incision is carefully extended through the subcutaneous tissue and fascia to access the underlying ribs.
  • Muscle Dissection: The muscles overlying the ribs are retracted to provide a clear view of the rib cage. The intercostal muscles are incised at the superior borders of the affected ribs to expose the fracture sites adequately.
  • Fracture Site Preparation: Once the fractures are exposed, the surgeon cleans the fracture sites and removes any nonunion fibrous tissue that may impede proper healing.
  • Mobilization and Reduction: The fractured ends of the ribs are mobilized and reduced to their correct anatomical position. This step is crucial for ensuring that the ribs heal properly.
  • Internal Fixation: The reduced rib ends are then fixed in place using appropriate hardware, which may include metal plates, intramedullary fixation devices, Judet struts, absorbable plates, or U-plates, depending on the specific requirements of the fracture.
  • Thoracoscopic Visualization: Thoracoscopic visualization may be performed at any point during the procedure to assess the pleural cavity for bleeding or visceral damage, enhancing the safety and effectiveness of the surgery.
  • Closure: After the fixation is complete, the muscles are reapproximated with a running stitch. The fascia and subcutaneous tissue are closed with interrupted stitches, and the skin is secured with staples to complete the surgical procedure.

3. Post-Procedure

Post-procedure care following the open treatment of rib fractures with internal fixation includes monitoring for any complications such as infection, bleeding, or respiratory issues. Patients are typically advised to manage pain effectively, which may involve the use of analgesics. Additionally, respiratory therapy may be recommended to promote lung expansion and prevent complications such as pneumonia. Follow-up appointments are essential to assess the healing of the fractures and the integrity of the fixation devices. Patients should be educated on activity restrictions and the importance of avoiding movements that could jeopardize the surgical repair during the initial recovery phase.

Short Descr TREATMENT OF RIB FRACTURE
Medium Descr OPEN TX RIB FX W/FIXJ THORACOSCOPIC VIS 4-6 RIBS
Long Descr Open treatment of rib fracture(s) with internal fixation, includes thoracoscopic visualization when performed, unilateral; 4-6 ribs
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
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) 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
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5B - Ambulatory procedures - musculoskeletal
MUE 1
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).
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.
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).
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.
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
CR Catastrophe/disaster related
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
Date
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2015-01-01 Added Added
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