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Official Description

Reconstruction of mandible, extraoral, with transosteal bone plate (eg, mandibular staple bone plate)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 21244 involves the reconstruction of the mandible, which is the lower jawbone, using a specialized technique known as an extraoral approach. This approach entails accessing the mandible from outside the mouth, allowing the physician to effectively dissect the surrounding tissue away from the bone. The primary purpose of this reconstruction is to prepare the jaw for the placement of dentures, which are artificial replacements for missing teeth. During the procedure, a transosteal bone plate, such as a mandibular staple bone plate, is utilized. This plate is designed to provide structural support and stability to the mandible. The process includes drilling holes through the mandible and into the oral cavity, where posts connected to the bone plate are inserted. These posts serve as anchors for the bone plate, which is then secured in place using an external fixation device. Finally, all incisions made during the procedure are meticulously closed to promote healing and minimize complications.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 21244 is indicated for specific conditions and circumstances related to the mandible. The following are the primary indications for performing this reconstruction:

  • Preparation for Dentures This procedure is primarily performed to prepare the jaw for the placement of dentures, ensuring that the mandible has the necessary support and structure to accommodate these dental appliances.

2. Procedure

The reconstruction of the mandible using CPT® Code 21244 involves several critical procedural steps that ensure the effective placement of the transosteal bone plate. The following outlines the detailed steps of the procedure:

  • Extraoral Approach The procedure begins with the physician making an incision outside the mouth to access the mandible. This extraoral approach allows for better visibility and access to the bone, facilitating the dissection of the surrounding tissue away from the mandible.
  • Drilling Holes Once the tissue is adequately dissected, the physician drills holes through the mandible and into the oral cavity. This step is crucial as it creates the necessary pathways for the insertion of the posts that will connect to the bone plate.
  • Inserting Posts After the holes are drilled, posts that are connected to the transosteal bone plate are inserted into the drilled holes. These posts serve as anchors, providing stability and support for the bone plate.
  • Securing the Bone Plate The transosteal bone plate is then secured in place using an external fixation device. This device helps maintain the position of the bone plate and ensures that it remains stable during the healing process.
  • Closing Incisions Finally, all incisions made during the procedure are carefully closed. This step is essential for promoting healing and minimizing the risk of infection or other complications.

3. Post-Procedure

After the completion of the reconstruction procedure, patients can expect specific post-procedure care and considerations. It is important to monitor the surgical site for any signs of infection or complications. Patients may be advised to follow a soft diet to avoid placing undue stress on the mandible during the initial healing phase. Regular follow-up appointments will be necessary to assess the healing process and ensure that the bone plate remains securely in place. Additionally, patients should be informed about any activity restrictions to promote optimal recovery.

Short Descr RECONSTRUCTION OF LOWER JAW
Medium Descr RCNSTJ MNDBL XTRORAL W/TRANSOSTEAL BONE PLATE
Long Descr Reconstruction of mandible, extraoral, with transosteal bone plate (eg, mandibular staple bone plate)
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) 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 161 - Other OR therapeutic procedures on bone
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
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).
AG Primary physician
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
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
LT Left side (used to identify procedures performed on the left side of the body)
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
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
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