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Official Description

Osteotomy; phalanx of finger, each

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An osteotomy of the phalanx of a finger involves a surgical procedure where a bone cut is made to correct a deformity or to realign the bone structure. This procedure is specifically focused on the phalanges, which are the bones in the fingers. The type of osteotomy performed can vary based on the specific deformity being addressed and may include techniques such as transverse, wedge, sliding, right or left angle, V-osteotomy, and Z-osteotomy. Prior to the surgery, the physician utilizes radiographic studies to determine the precise location and configuration of the bone cut necessary to achieve optimal alignment and correction. During the procedure, an incision is made over the targeted phalanx, allowing for the dissection of soft tissues to expose the bone. The periosteum, a layer of connective tissue surrounding the bone, is elevated to facilitate access. The bone is then cut using surgical instruments such as a drill, saw, or osteotome, following the predetermined configuration. If necessary, bone grafts may be placed between the cut segments to promote healing and stability. To ensure that the bone edges remain properly aligned, various internal fixation devices, such as pins, screws, or plates, may be applied. In some cases, an external fixation device may also be utilized. It is important to report the procedure using the appropriate CPT® code, specifically 26567 for osteotomy of the phalanx, with separate reporting for each phalanx treated during the surgery.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The osteotomy of the phalanx of the finger is indicated for various conditions that necessitate correction of bone deformities or misalignments. These indications may include:

  • Deformity Correction The procedure is performed to correct congenital or acquired deformities of the phalanx, which may affect the function or appearance of the finger.
  • Realignment of Bone Osteotomy is indicated when there is a need to realign the phalanx due to trauma, fractures, or other injuries that have resulted in improper healing or positioning of the bone.
  • Improvement of Function The procedure may be necessary to improve the overall function of the finger, particularly in cases where the deformity limits movement or dexterity.

2. Procedure

The procedure for performing an osteotomy of the phalanx 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 optimal location and configuration for the bone cut. This planning is essential to achieve the desired alignment and correction during the procedure.
  • Step 2: Incision and Exposure An incision is made over the targeted phalanx to provide access to the bone. The surgeon carefully dissects the soft tissues surrounding the phalanx to expose the bone adequately. This step is crucial for ensuring that the surgical field is clear and that the bone can be accessed without damaging surrounding structures.
  • Step 3: Elevation of the Periosteum Once the bone is exposed, the periosteum, which is the fibrous tissue covering the bone, is elevated. This elevation allows for better access to the bone surface and facilitates the subsequent cutting process.
  • Step 4: Bone Cutting Using surgical instruments such as a drill, saw, or osteotome, the surgeon makes the predetermined bone cut in the specified configuration. The type of cut may vary based on the specific deformity being addressed, and precision is critical to ensure proper alignment post-surgery.
  • Step 5: Bone Grafting (if necessary) If indicated, bone grafts may be interposed between the cut segments of the phalanx to promote healing and stability. This step is particularly important in cases where significant bone loss or instability is present.
  • Step 6: Internal Fixation To secure the cut edges of the bone in anatomical alignment, the surgeon may apply various internal fixation devices, such as pins, screws, or a plate and screw device. These devices help maintain the proper position of the bone during the healing process.
  • Step 7: External Fixation (if applicable) In some cases, an external fixation device may be utilized to stabilize the phalanx post-operatively. This option may be chosen based on the specific needs of the patient and the nature of the deformity.

3. Post-Procedure

After the osteotomy of the phalanx, post-procedure care is essential for optimal recovery. Patients are typically monitored for any signs of complications, such as infection or improper healing. Pain management strategies are implemented to ensure patient comfort. Rehabilitation may be necessary to restore function and mobility to the finger, which may include physical therapy exercises. The duration of recovery can vary based on the complexity of the procedure and the individual patient's healing response. Follow-up appointments are crucial to assess the healing process and to make any necessary adjustments to the treatment plan.

Short Descr CORRECT FINGER DEFORMITY
Medium Descr OSTEOTOMY PHALANX FINGER EACH
Long Descr Osteotomy; phalanx of finger, 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) 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 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) P5B - Ambulatory procedures - musculoskeletal
MUE 3
CCS Clinical Classification 161 - Other OR therapeutic procedures on bone
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.
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.
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.)
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).
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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Pre-1990 Added Code added.
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