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Official Description

Graft, bone; nasal, maxillary or malar areas (includes obtaining graft)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 21210 involves the use of a bone graft specifically for the nasal, maxillary, or malar areas of the face. This surgical intervention is performed to augment or facilitate the healing process in these regions, which may be necessary due to trauma, congenital defects, or other medical conditions affecting the structural integrity of the facial bones. The procedure is conducted under general anesthesia to ensure the patient's comfort and safety throughout the operation. During the surgery, the physician carefully obtains bone graft material from the patient's own body, typically from areas such as the rib, skull, or hip. This autologous grafting technique minimizes the risk of rejection and complications associated with foreign materials. An incision is made over the area requiring reconstruction, allowing the physician to precisely place the graft into the designated site. To secure the graft in position, the use of fixation devices such as wires, plates, or screws may be employed. Finally, the incisions made during the procedure are meticulously closed to promote optimal healing and minimize scarring.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 21210 is indicated for various conditions affecting the nasal, maxillary, or malar areas. These indications may include:

  • Trauma: Injuries to the facial bones that result in defects or loss of structural integrity.
  • Congenital Defects: Birth-related anomalies that affect the shape or function of the nasal, maxillary, or malar regions.
  • Bone Resorption: Loss of bone density or volume in the facial areas due to disease or previous surgical interventions.
  • Reconstructive Needs: Requirements for reconstructive surgery following tumor excision or other medical treatments that compromise the facial structure.

2. Procedure

The procedure for CPT® Code 21210 involves several critical steps to ensure successful grafting and healing. The steps are as follows:

  • Step 1: Anesthesia Administration - The procedure begins with the administration of general anesthesia to ensure that the patient is completely unconscious and free from pain during the surgery. This is a crucial step to facilitate a safe and comfortable surgical environment.
  • Step 2: Graft Harvesting - The physician then proceeds to obtain the bone graft from the patient's own body. Common donor sites include the rib, skull, or hip. The selection of the donor site is based on the amount of graft material needed and the patient's overall health.
  • Step 3: Incision Creation - Once the graft is harvested, the physician makes an incision over the area of the nasal, maxillary, or malar region that requires augmentation. This incision allows access to the underlying bone structure.
  • Step 4: Graft Placement - The harvested bone graft is then carefully placed into the prepared site. The physician ensures that the graft fits securely and is positioned correctly to promote optimal healing and integration with the surrounding bone.
  • Step 5: Graft Stabilization - To secure the graft in place, the physician may use fixation devices such as wires, plates, or screws. This stabilization is essential to prevent movement of the graft during the healing process.
  • Step 6: Closure of Incisions - After the graft has been successfully placed and secured, the physician closes all incisions with sutures or other closure techniques. This step is vital for protecting the surgical site and promoting healing.

3. Post-Procedure

Following the procedure coded as CPT® 21210, patients can expect a recovery period that may vary based on individual health factors and the extent of the surgery. Post-operative care typically includes monitoring for any signs of infection, managing pain with prescribed medications, and following specific instructions regarding activity restrictions. Patients may be advised to avoid strenuous activities and to keep the surgical site clean and dry. Follow-up appointments are essential to assess the healing process and the integration of the graft. The physician will provide guidance on when normal activities can be resumed and any additional care that may be necessary during the recovery phase.

Short Descr FACE BONE GRAFT
Medium Descr GRAFT BONE NASAL/MAXILLARY/MALAR AREAS
Long Descr Graft, bone; nasal, maxillary or malar areas (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) 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 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
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.)
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).
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)
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).
GA Waiver of liability statement issued as required by payer policy, individual case
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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.
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.
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.)
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.
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
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
SG Ambulatory surgical center (asc) facility service
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