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Official Description

Open treatment of carpometacarpal dislocation, other than thumb; includes internal fixation, when performed, each joint

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 26685 refers to the open treatment of a carpometacarpal (CMC) dislocation, specifically for joints other than the thumb. This procedure involves a surgical approach where a dorsal incision is made on the back of the hand to access the dislocated joint. The primary goal of this intervention is to restore the normal alignment of the dislocated joint through open reduction, which is the process of manually repositioning the bones into their proper alignment. During the procedure, the surgeon carefully retracts the extensor tendons to enhance visibility and access to the joint. The joint capsule is then opened to allow for direct manipulation of the dislocated joint surfaces. If necessary, internal fixation is applied to stabilize the joint, with wire fixation being a common method used. After the dislocation is successfully reduced and any required fixation is completed, the joint capsule is repaired, and the surgical wound is subsequently closed. It is important to note that if multiple carpometacarpal joints are treated during the same surgical session, the code 26685 should be reported for each joint that undergoes this open treatment. This procedure is distinct from the treatment of complex carpometacarpal dislocations, which are coded separately under CPT® Code 26686, indicating a more complicated clinical scenario involving recurrent dislocations or delayed treatment.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The open treatment of carpometacarpal dislocation, as described by CPT® Code 26685, is indicated for specific conditions related to the dislocation of the carpometacarpal joints, excluding the thumb. The following indications are relevant for this procedure:

  • Single Carpometacarpal Dislocation This procedure is performed when there is a dislocation of a single carpometacarpal joint, which requires surgical intervention to restore normal joint function.
  • Need for Open Reduction The indication for this procedure arises when closed reduction techniques are insufficient to realign the dislocated joint, necessitating an open surgical approach.
  • Internal Fixation Requirement If the dislocation is unstable or if there is a need for additional stabilization, internal fixation may be indicated during the procedure.

2. Procedure

The procedure for the open treatment of carpometacarpal dislocation involves several critical steps, which are detailed as follows:

  • Dorsal Incision The surgeon begins by making a dorsal incision over the affected carpometacarpal joint. This incision allows for direct access to the joint and is strategically placed to minimize damage to surrounding tissues.
  • Joint Exposure Once the incision is made, the surgeon carefully retracts the extensor tendons to provide better visibility and access to the dislocated joint. This step is crucial for ensuring that the joint surfaces can be adequately assessed and manipulated.
  • Opening the Joint Capsule The next step involves opening the joint capsule, which encases the carpometacarpal joint. This allows the surgeon to directly visualize the dislocated joint surfaces and perform the necessary reduction.
  • Reduction of the Dislocation The dislocated joint is then reduced, meaning the surgeon manually repositions the bones into their correct anatomical alignment. This step is essential for restoring normal joint function and preventing future complications.
  • Internal Fixation (if necessary) If the joint is deemed unstable after reduction, internal fixation may be applied. This typically involves the use of wire fixation to secure the joint in its proper position, ensuring stability during the healing process.
  • Repair of the Joint Capsule After the dislocation has been successfully reduced and any necessary fixation has been applied, the joint capsule is repaired to restore its integrity and support the healing process.
  • Closure of the Wound Finally, the surgical wound is closed using appropriate suturing techniques to promote healing and minimize the risk of infection.

3. Post-Procedure

Post-procedure care following the open treatment of carpometacarpal dislocation 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 during the recovery phase. Rehabilitation may be recommended to restore range of motion and strength in the affected hand. Patients are advised to follow specific instructions regarding activity restrictions and follow-up appointments to assess the healing process and the stability of the joint. The overall recovery time may vary depending on the extent of the dislocation and the individual patient's healing response.

Short Descr TREAT HAND DISLOCATION
Medium Descr OPEN TX CARPOMETACARPAL DISLOCATE NOT THUMB
Long Descr Open treatment of carpometacarpal dislocation, other than thumb; includes internal fixation, when performed, each joint
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 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 148 - Other fracture and dislocation procedure
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).
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.)
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
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
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
Date
Action
Notes
2008-01-01 Changed Code description changed.
2002-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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