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The procedure described by CPT® Code 21031 refers to the excision of a torus mandibularis, which is a bony growth located on the lingual surface of the mandible, typically near the bicuspid teeth. This growth is classified as a developmental anomaly and is characterized by its slow growth pattern. Although these bony protrusions, known as torus mandibularis, do not usually manifest until adulthood, they can vary significantly in size and shape. They may present as a single nodule or as multiple nodules that can fuse together. Surgical intervention is generally indicated only when the torus mandibularis interferes with the placement of dentures or when the growth becomes large enough to pose a risk of injury or ulceration. During the excision procedure, an incision is made in the mucosa that covers the bony growth, allowing for direct access to the lesion. The torus is then carefully removed, either by chiseling it off the bone cortex or by utilizing a bone bur for excision. This procedure is specifically coded as 21031, distinguishing it from the excision of a maxillary torus palatinus, which is coded as 21032.
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The excision of a torus mandibularis is indicated in specific circumstances where the growth poses challenges or complications. The following conditions warrant this surgical procedure:
The procedure for excising a torus mandibularis involves several key steps that ensure the safe and effective removal of the bony growth. The following procedural steps are outlined:
Following the excision of a torus mandibularis, patients can expect specific post-procedure care and recovery considerations. It is important to monitor the surgical site for any signs of infection or complications. Patients may experience some swelling and discomfort, which can be managed with prescribed pain relief medications. Instructions regarding oral hygiene and dietary modifications may be provided to facilitate healing. Follow-up appointments are typically scheduled to assess the healing process and to remove sutures if necessary. Overall, the recovery period may vary depending on the individual, but most patients can resume normal activities within a few days, barring any complications.
| Short Descr | REMOVE EXOSTOSIS MANDIBLE | Medium Descr | EXCISION TORUS MANDIBULARIS | Long Descr | Excision of torus mandibularis | 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) | 1 - 150% payment adjustment for bilateral procedures applies. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 1 - Statutory 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 | Office-based surgical procedure added to ASC list in CY 2008 or later with MPFS nonfacility PE RVUs; payment based on MPFS nonfacility PE RVUs. | Type of Service (TOS) | 2 - Surgery | Berenson-Eggers TOS (BETOS) | P3D - Major procedure, orthopedic - other | MUE | 2 | CCS Clinical Classification | 142 - Partial excision bone |
| 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. | 47 | Anesthesia by surgeon: regional or general anesthesia provided by the surgeon may be reported by adding modifier 47 to the basic service. (this does not include local anesthesia.) note: modifier 47 would not be used as a modifier for the anesthesia procedures. | 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). | 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. | 76 | Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | 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). | 99 | Multiple modifiers: under certain circumstances 2 or more modifiers may be necessary to completely delineate a service. in such situations modifier 99 should be added to the basic procedure, and other applicable modifiers may be listed as part of the description of the service. | AG | Primary physician | AQ | Physician providing a service in an unlisted health professional shortage area (hpsa) | 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 | GX | Notice of liability issued, voluntary under payer policy | GY | Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit | 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) | SG | Ambulatory surgical center (asc) facility service | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure |
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| 2011-01-01 | Changed | Short description changed. |
| 1990-01-01 | Added | First appearance in code book in 1990. |
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