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Official Description

Cartilage graft; costochondral

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 20910 involves the transplantation of cartilage, specifically a costochondral graft, which is a type of autograft. This procedure is commonly performed to reconstruct areas of the face, particularly to alleviate pain associated with temporomandibular joint (TMJ) disorders. In this context, the term "costochondral" refers to the cartilage that is harvested from the rib area, which is then transplanted to the affected site. The grafting process can involve different types of grafts: an autograft, where the cartilage is taken from the same individual, an allograft (or homograft), where the cartilage is sourced from another human donor, and a xenograft (or heterograft), which involves cartilage from a different species. The surgical procedure begins with the physician making an incision over the donor site, which is typically located near the ribs, followed by the resection of surrounding muscles to access and harvest the cartilage graft. This code specifically pertains to the costochondral grafting procedure, while a different code, CPT® Code 20912, is designated for grafts taken from the nasal septum.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 20910 is indicated for various conditions that require the reconstruction of cartilage in the facial region, particularly in cases involving temporomandibular joint (TMJ) pain. The following are specific indications for performing a costochondral cartilage graft:

  • TMJ Disorders The procedure is often performed to alleviate pain and dysfunction associated with temporomandibular joint disorders.
  • Facial Reconstruction It may be indicated for reconstructive surgery in the facial area, particularly when there is a need to restore cartilage structure.
  • Cartilage Defects The procedure is suitable for patients with defects or damage to the cartilage that require surgical intervention for repair.

2. Procedure

The procedure for a costochondral cartilage graft involves several critical steps to ensure successful harvesting and transplantation of the cartilage. The following outlines the procedural steps:

  • Step 1: Patient Preparation The patient is positioned appropriately, and the surgical site is prepared and sterilized to minimize the risk of infection. Anesthesia is administered to ensure the patient is comfortable throughout the procedure.
  • Step 2: Incision and Access The surgeon makes an incision over the donor site, which is typically located along the rib cage where the costochondral cartilage is harvested. This incision allows access to the underlying tissues.
  • Step 3: Muscle Resection The surgeon carefully resects the muscles surrounding the donor cartilage to expose the costochondral area. This step is crucial for obtaining a sufficient amount of cartilage for grafting.
  • Step 4: Harvesting the Cartilage Once the area is adequately exposed, the surgeon harvests the costochondral cartilage. Care is taken to ensure that the graft is of appropriate size and quality for transplantation.
  • Step 5: Graft Preparation After harvesting, the cartilage graft is prepared for transplantation. This may involve shaping the graft to fit the recipient site accurately.
  • Step 6: Transplantation The prepared graft is then transplanted to the designated site, typically in the facial region, to address the specific condition being treated.
  • Step 7: Closure After the graft is securely placed, the surgeon closes the incision using sutures or staples, ensuring that the area is properly sealed to promote healing.

3. Post-Procedure

Post-procedure care for patients who have undergone a costochondral cartilage graft is essential for optimal recovery. Patients are typically monitored for any immediate complications following the surgery. Pain management strategies are implemented to address discomfort at both the donor and recipient sites. Patients may be advised to limit physical activity and follow specific guidelines for wound care to prevent infection. Follow-up appointments are scheduled to assess the healing process and the success of the graft. Rehabilitation may be recommended to restore function and mobility in the affected area, particularly if the procedure was performed to alleviate TMJ pain.

Short Descr REMOVE CARTILAGE FOR GRAFT
Medium Descr CARTILAGE GRAFT COSTOCHONDRAL
Long Descr Cartilage graft; costochondral
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) 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 Procedure or Service, Multiple Reduction Applies
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) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 164 - Other OR therapeutic procedures on musculoskeletal system
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).
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.
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.
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.)
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.)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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