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Official Description

Osteotomy; metacarpal, each

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An osteotomy of the metacarpal bones is a surgical procedure aimed at correcting deformities or realigning the bones of the hand. The term "osteotomy" refers to the surgical cutting of bone, and in this case, it specifically pertains to the metacarpal bones, which are the long bones in the hand that connect the wrist to the fingers. The procedure is tailored to the specific type and location of the deformity, which may vary from patient to patient. Various techniques can be employed during the osteotomy, including transverse cuts, wedge-shaped cuts, sliding cuts, and angular cuts, such as right or left angle, V-osteotomy, and Z-osteotomy. Before the surgery, the physician utilizes radiographic studies to precisely determine the optimal location and configuration for the bone cut, ensuring that the procedure will effectively address the deformity. During the operation, an incision is made over the affected metacarpal bone or phalanx, allowing access to the bone after careful dissection of the surrounding soft tissues. The periosteum, a dense layer of connective tissue that covers the bone, is elevated to expose the bone surface. Using surgical instruments such as drills, saws, or osteotomes, the surgeon then makes the necessary cuts in the bone according to the pre-determined plan. In some cases, bone grafts may be inserted between the cut segments to promote healing and stability. To secure the bone in its new position, various fixation methods may be employed, including pins, screws, or plates. Alternatively, an external fixation device may be used if deemed appropriate. It is important to report the procedure using the appropriate CPT® code, specifically 26565 for each metacarpal bone treated with osteotomy, while 26567 is designated for osteotomies of the phalanx.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The osteotomy of the metacarpal bones is indicated for various conditions that necessitate realignment or correction of bone deformities. These indications may include:

  • Deformity Correction - The procedure is performed to correct congenital or acquired deformities of the metacarpal bones.
  • Realignment of Fractures - Osteotomy may be indicated to realign improperly healed fractures of the metacarpals.
  • Joint Dysfunction - Conditions leading to joint dysfunction or pain due to malalignment may warrant an osteotomy.
  • Arthritis - In cases of arthritis affecting the metacarpal joints, an osteotomy may help alleviate symptoms and improve function.

2. Procedure

The procedure for performing an osteotomy of the metacarpal bones involves several critical steps, which are detailed as follows:

  • Step 1: Preoperative Planning - Prior to the surgical intervention, the physician conducts radiographic studies to assess the deformity and determine the precise location and configuration for the osteotomy. This planning is essential to achieve the desired alignment and correction of the bone.
  • Step 2: Incision and Exposure - An incision is made over the targeted metacarpal bone. The surgeon carefully dissects the soft tissues to expose the bone, ensuring minimal damage to surrounding structures.
  • Step 3: Elevation of the Periosteum - Once the bone is exposed, the periosteum is elevated to provide access to the bone surface, which is necessary for the osteotomy.
  • Step 4: Bone Cutting - Using surgical instruments such as a drill, saw, or osteotome, the surgeon performs the osteotomy by cutting the bone in the predetermined configuration. The specific technique used will depend on the type of deformity being corrected.
  • Step 5: Bone Grafting (if necessary) - If required, bone grafts may be interposed between the cut segments of the bone to facilitate healing and maintain stability.
  • Step 6: Internal or External Fixation - The final step involves securing the cut edges of the bone in anatomical alignment. This may be achieved through the application of pins, screws, or a plate and screw device. Alternatively, an external fixation device may be utilized if appropriate for the case.

3. Post-Procedure

After the osteotomy procedure, the patient will typically require post-operative care to ensure proper healing and recovery. This may include immobilization of the hand to prevent movement at the surgical site, pain management, and monitoring for any signs of complications. The physician will provide specific instructions regarding activity restrictions and rehabilitation exercises to promote recovery. Follow-up appointments will be necessary to assess the healing process and to determine when the patient can safely resume normal activities.

Short Descr CORRECT METACARPAL FLAW
Medium Descr OSTEOTOMY METACARPAL EACH
Long Descr Osteotomy; metacarpal, each
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) 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 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 2
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).
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.
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.
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
F1 Left hand, second digit
F2 Left hand, third digit
F3 Left hand, fourth digit
F4 Left hand, fifth digit
F5 Right hand, thumb
F6 Right hand, second digit
F7 Right hand, third digit
F8 Right hand, fourth digit
F9 Right hand, fifth digit
FA Left hand, thumb
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)
SG Ambulatory surgical center (asc) facility service
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
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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Pre-1990 Added Code added.
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