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Official Description

Vestibuloplasty; posterior, bilateral

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 40843 refers to a bilateral vestibuloplasty, which is a surgical intervention aimed at modifying the vestibule of the mouth. The vestibule, also known as the buccal or oral cavity, encompasses the mucosal and submucosal tissues of the lips and cheeks, while excluding the dentoalveolar structures. The primary objective of vestibuloplasty is to restore the height of the alveolar ridge, which is the bony ridge in the upper and lower jaws that contains the sockets for teeth. This procedure is particularly beneficial for patients with congenital conditions such as cleft lip and/or palate, as well as other facial deformities, where the soft tissue and underlying bone may require reshaping to achieve both aesthetic and functional improvements. In addition, vestibuloplasty can be performed on edentulous patients who have a shallow vestibular sulcus, with the goal of deepening the vestibule to enhance the fit of dentures or dental implants. The surgical technique involves making an incision in the mucosa located in the sulcus between the lip or cheek and the alveolar ridge, allowing for the separation of connective tissue and muscle attachments. Following the incision, the buccal or labial tissue is repositioned and sutured in its new location, or a graft may be utilized to cover the incision site. This procedure is categorized as bilateral when it involves both sides of the mouth, distinguishing it from unilateral vestibuloplasty, which is coded separately. Overall, vestibuloplasty is a critical procedure in oral and maxillofacial surgery that facilitates improved oral function and aesthetics for various patient populations.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The indications for performing a bilateral vestibuloplasty (CPT® Code 40843) include the following:

  • Cleft Lip and/or Palate: Patients with congenital conditions such as cleft lip and/or palate may require vestibuloplasty to remodel the vestibular soft tissue and underlying alveolar ridge bone for improved cosmetic and functional outcomes.
  • Facial Deformities: Individuals with other facial deformities may also benefit from this procedure to achieve necessary adjustments in the vestibular area.
  • Edentulous Patients: Patients who are edentulous and have a shallow vestibular sulcus may undergo vestibuloplasty to deepen the vestibule, thereby increasing the surface area for better fitting of dentures or dental implants.

2. Procedure

The procedure for bilateral vestibuloplasty involves several key steps, which are detailed as follows:

  • Incision Creation: The surgeon begins by making an incision in the mucosa located in the sulcus between the lip (labia) or cheek (buccal) and the alveolar ridge. This incision is critical as it allows for the separation of connective tissue and muscle attachments where the tissue meets the gums.
  • Deepening the Vestibular Area: After the initial incision, the vestibular area is deepened to achieve the desired anatomical changes. This step is essential for creating a more functional and aesthetically pleasing vestibule.
  • Tissue Repositioning: Once the vestibular area has been deepened, the buccal or labial tissue is then stitched in its new position. This repositioning is crucial for maintaining the new depth of the vestibule.
  • Tissue Grafting (if necessary): In some cases, a tissue graft from another part of the mouth may be placed over the incision site to promote healing and ensure adequate coverage of the surgical area.

3. Post-Procedure

Post-procedure care following a bilateral vestibuloplasty includes monitoring for any signs of complications, such as infection or excessive bleeding. Patients are typically advised to follow specific oral hygiene practices to maintain cleanliness in the surgical area. Additionally, a post-surgical stent or denture may be placed over the alveolar ridge and secured with screws to facilitate adherence of the overlying tissue to the periosteum. This stent or denture is generally removed approximately two weeks after the procedure, allowing for adequate healing and stabilization of the tissues.

Short Descr RECONSTRUCTION OF MOUTH
Medium Descr VESTIBULOPLASTY POSTERIOR BILATERAL
Long Descr Vestibuloplasty; posterior, bilateral
Status Code Restricted Coverage
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) 2 - 150% payment adjustment 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) 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
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE 1
CCS Clinical Classification 33 - Other OR therapeutic procedures on nose, mouth and pharynx
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.
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.)
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