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Official Description

Graft, bone; mandible (includes obtaining graft)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 21215 involves the use of a bone graft specifically for the mandible, which is the lower jawbone. This surgical intervention is performed to augment or facilitate the healing process of the mandible, particularly in cases where there is a defect or deficiency in the bone structure. The physician typically performs this procedure under general anesthesia to ensure the patient is completely unconscious and free from pain during the operation. The bone graft can be harvested from various donor sites within the patient's own body, such as the rib, skull, or hip, which are common sources for obtaining viable bone tissue. The surgical process begins with making an incision over the area of the mandible that requires repair or enhancement. Once the graft is obtained, it is carefully placed into the prepared site on the mandible. To secure the graft in position, the physician may utilize various fixation devices, including wires, plates, or screws, ensuring that the graft remains stable as it integrates with the surrounding bone. Finally, the incisions made during the procedure are meticulously closed to promote healing and minimize scarring.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 21215 is indicated for various conditions affecting the mandible that necessitate bone augmentation or repair. These indications may include:

  • Bone Defects The presence of defects in the mandible due to trauma, surgical resection, or congenital anomalies that require reconstruction.
  • Bone Loss Situations where there is significant bone loss, which may occur due to periodontal disease, infection, or other pathological conditions.
  • Implant Support The need for adequate bone volume to support dental implants in the mandible, ensuring proper placement and stability.

2. Procedure

The procedure for CPT® Code 21215 involves several critical steps to ensure successful grafting of bone to the mandible. These steps include:

  • Step 1: Anesthesia Administration The procedure begins with the administration of general anesthesia to the patient, ensuring they are completely unconscious and free from pain throughout the surgical process.
  • Step 2: Graft Harvesting The physician then selects an appropriate donor site, which may include the rib, skull, or hip, to obtain the necessary bone graft. An incision is made at the donor site, and the bone is carefully harvested while minimizing damage to surrounding tissues.
  • Step 3: Incision at the Mandible Following the harvesting of the graft, the physician makes an incision over the specific area of the mandible that requires augmentation or repair. This incision allows access to the underlying bone structure.
  • Step 4: Graft Placement The harvested bone graft is then meticulously placed into the prepared site on the mandible. The physician ensures that the graft fits securely and is positioned correctly to promote optimal healing and integration with the existing bone.
  • Step 5: Stabilization of the Graft To secure the graft in place, the physician may utilize various fixation devices such as wires, plates, or screws. This stabilization is crucial for maintaining the position of the graft during the healing process.
  • Step 6: Closure of Incisions Once the graft is securely in place, the physician proceeds to close all incisions made during the procedure. This is done carefully to promote healing and minimize scarring.

3. Post-Procedure

After the completion of the procedure associated with CPT® Code 21215, the patient will typically be monitored in a recovery area until the effects of anesthesia wear off. Post-procedure care may include pain management, instructions for activity restrictions, and guidelines for oral hygiene to prevent infection at the surgical site. The physician may schedule follow-up appointments to assess the healing process and ensure proper integration of the graft with the mandible. Patients are advised to report any unusual symptoms, such as excessive swelling, bleeding, or signs of infection, to their healthcare provider promptly.

Short Descr LOWER JAW BONE GRAFT
Medium Descr GRAFT BONE MANDIBLE
Long Descr Graft, bone; mandible (includes obtaining graft)
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) 1 - Statutory payment restriction for assistants at surgery applies 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 2
CCS Clinical Classification 161 - Other OR therapeutic procedures on bone
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.)
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).
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.
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left side of the body)
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.
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).
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.
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.
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.
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.
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.)
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
GW Service not related to the hospice patient's terminal condition
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
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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