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The procedure described by CPT® Code 21199 involves a surgical intervention known as a segmental osteotomy of the mandible, specifically with the advancement of the genioglossus muscle. This procedure is performed to correct a localized deformity of the mandible, which is the lower jawbone. The term 'osteotomy' refers to the surgical cutting of bone, and in this case, it is segmental, meaning that a specific segment of the mandible is targeted for correction. The process begins with the physician making an incision over the area where the deformity is located. Following this, the surrounding tissue is carefully reflected to expose the bone segment that requires modification. To remove the deformed segment of bone, the surgeon utilizes various surgical instruments, including saws, drills, and osteotomes, which are specialized tools designed for cutting bone. Once the deformed segment is excised, the mandible is repositioned and stabilized using fixation devices such as wires, screws, metal plates, or an acrylic splint. This stabilization is crucial for ensuring proper healing and alignment of the jaw. Additionally, if the procedure includes the advancement of the genioglossus muscle, which is a muscle located at the base of the tongue, it is specifically coded under CPT® Code 21199. Finally, after the surgical modifications are completed, all incisions made during the procedure are meticulously closed to promote healing and minimize complications.
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The procedure indicated by CPT® Code 21199 is performed for specific conditions related to deformities of the mandible. These indications may include:
The procedure for CPT® Code 21199 involves several critical steps to ensure the successful correction of the mandibular deformity. Each step is detailed as follows:
Post-procedure care following the segmental osteotomy of the mandible with genioglossus advancement is essential for recovery. Patients are typically monitored for any immediate complications, and pain management strategies are implemented. Instructions regarding diet, activity restrictions, and oral hygiene are provided to ensure proper healing. Follow-up appointments are scheduled to assess the healing process and the effectiveness of the procedure. Patients may also be advised on the importance of avoiding strenuous activities that could jeopardize the stability of the mandible during the initial recovery phase. Overall, adherence to post-operative care guidelines is crucial for achieving the desired outcomes of the surgery.
| Short Descr | RECONSTR LWR JAW W/ADVANCE | Medium Descr | OSTEOTOMY MANDIBLE SGMTL W/GENIOGLOSSUS ADVMNT | Long Descr | Osteotomy, mandible, segmental; with genioglossus advancement | 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 | Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight. | 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). | 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. | GC | This service has been performed in part by a resident under the direction of a teaching physician | GZ | Item or service expected to be denied as not reasonable and necessary | RT | Right side (used to identify procedures performed on the right side of the body) |
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| 2001-01-01 | Added | First appearance in code book in 2001. |
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