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The procedure described by CPT® Code 40842 refers to a unilateral posterior vestibuloplasty, which is a surgical intervention aimed at modifying the vestibule of the mouth. The vestibule is the space in the oral cavity that lies between the lips and cheeks and the teeth, encompassing the mucosa and submucosa but excluding the dentoalveolar structures. This procedure is particularly significant for patients with conditions such as cleft lip and/or palate or other facial deformities, where the soft tissue and underlying alveolar ridge bone may need to be reshaped to achieve both aesthetic and functional improvements. Vestibuloplasty is also beneficial for edentulous patients who have a shallow vestibular sulcus, as it deepens the vestibule, thereby increasing the surface area available for better fitting of dentures or dental implants. The surgical technique involves making an incision in the mucosa at the sulcus, which separates connective tissue and muscle attachments from the gums. Following the incision, the buccal or labial tissue is repositioned, or a graft may be applied to enhance the area. This procedure is distinct from anterior vestibuloplasty, which focuses on the area between the lips and front teeth, while posterior vestibuloplasty specifically addresses the tissue between the cheeks and teeth.
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The unilateral posterior vestibuloplasty (CPT® Code 40842) is indicated for several specific conditions and scenarios, including:
The procedure for unilateral posterior vestibuloplasty involves several key steps, which are detailed as follows:
Following the unilateral posterior vestibuloplasty, patients can expect specific post-procedure care and considerations. It is essential to monitor the surgical site for signs of infection and to ensure proper healing. Patients may be advised to avoid certain foods and activities that could stress the surgical area during the initial recovery phase. A post-surgical stent or denture may be placed over the alveolar ridge and secured with screws to support the overlying tissue as it adheres to the periosteum. This stent or denture is typically removed approximately two weeks after the procedure, allowing for adequate healing and stabilization of the modified vestibular area.
| Short Descr | RECONSTRUCTION OF MOUTH | Medium Descr | VESTIBULOPLASTY POSTERIOR UNILATERAL | Long Descr | Vestibuloplasty; posterior, unilateral | 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) | 0 - 150% payment adjustment for bilateral procedures does NOT apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 0 - Payment restriction for assistants at surgery applies 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). | 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.) | 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. | 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). | 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. | 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.) | 80 | Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s). | AS | Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery | GA | Waiver of liability statement issued as required by payer policy, individual case | 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) |
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| Pre-1990 | Added | Code added. |
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