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Official Description

Arthrodesis, wrist; complete, without bone graft (includes radiocarpal and/or intercarpal and/or carpometacarpal joints)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Arthrodesis, commonly known as joint fusion, is a surgical procedure aimed at alleviating pain and enhancing joint stability. This procedure is particularly beneficial for patients suffering from various forms of arthritis, including rheumatoid arthritis, osteoarthritis, and post-traumatic arthritis. Additionally, it is indicated for conditions such as spastic flexion contracture, degenerative scaphoid nonunion, and cases where previous wrist arthroplasty has failed. The surgery involves creating an incision along the midline of the posterior wrist, extending from the distal forearm to the proximal metacarpal region. This approach allows for the exposure of the radiocarpal joint and the distal radioulnar joint (DRUJ). During the procedure, the retinaculum is carefully released, and the surrounding nerves are protected to prevent injury. The removal of articular cartilage is a critical step, which is performed using specialized instruments like rongeurs or burs. Following this, the affected joints are immobilized with internal fixation devices, such as pins or plates and screws, to ensure proper alignment and stability during the healing process. The ultimate goal of arthrodesis is to achieve complete fusion of the wrist joints, thereby providing significant pain relief and restoring functionality to the wrist.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Arthrodesis of the wrist is indicated for several specific conditions and symptoms that compromise joint function and cause significant pain. The following are the primary indications for this procedure:

  • Rheumatoid Arthritis - A chronic inflammatory disorder that affects the joints, leading to pain and deformity.
  • Osteoarthritis - A degenerative joint disease characterized by the breakdown of cartilage, resulting in pain and stiffness.
  • Post-Traumatic Arthritis - Arthritis that develops following an injury to the wrist, causing pain and reduced mobility.
  • Spastic Flexion Contracture - A condition where the wrist is held in a flexed position due to muscle spasticity, limiting movement.
  • Degenerative Scaphoid Nonunion - A failure of the scaphoid bone to heal properly after a fracture, leading to chronic pain and dysfunction.
  • Failed Wrist Arthroplasty - A situation where a previous wrist replacement surgery has not succeeded, resulting in ongoing pain and instability.

2. Procedure

The procedure for wrist arthrodesis involves several critical steps to ensure successful joint fusion. The following outlines the procedural steps:

  • Step 1: Incision - A midline incision is made over the posterior aspect of the wrist, extending from the distal forearm to the proximal aspect of the metacarpal. This incision provides access to the underlying structures of the wrist.
  • Step 2: Exposure of Joints - The radiocarpal joint and the distal radioulnar joint (DRUJ) are carefully exposed to allow for the necessary surgical intervention.
  • Step 3: Retinaculum Release - The retinaculum, a fibrous band that holds the tendons in place, is released starting from the ulnar border and extending to the radial border, facilitating better access to the joints.
  • Step 4: Nerve Protection - The radial and ulnar nerves are protected using vessel loops to prevent any potential injury during the procedure.
  • Step 5: Tendon Retraction - The tendons are retracted to provide a clear view and access to the joint surfaces that need to be treated.
  • Step 6: Cartilage Removal - Articular cartilage is meticulously removed from the joint surfaces using a rongeur or bur, preparing the bones for fusion.
  • Step 7: Joint Immobilization - The radiocarpal, intercarpal, and/or carpometacarpal joints are immobilized using internal fixation devices, such as pins or a plate and screws, to maintain stability during the healing process.
  • Step 8: Plate Application - For complete fusion, a plate that extends from the metacarpal of the long finger to the distal radius is utilized. The plate is secured with screws to the metacarpal of the long finger, the capitate bone, and the radius, effectively fusing the wrist.
  • Step 9: Wound Closure - Finally, the surgical wound is closed in layers to promote optimal healing and minimize complications.

3. Post-Procedure

After the arthrodesis procedure, patients can expect a recovery period that may involve immobilization of the wrist to ensure proper healing and fusion of the joints. Post-operative care typically includes pain management, monitoring for signs of infection, and follow-up appointments to assess the healing process. Rehabilitation may be necessary to restore function and strength to the wrist once the initial healing phase is complete. Patients should be advised on activity restrictions and the importance of adhering to the rehabilitation protocol to achieve the best possible outcomes.

Short Descr ARTHRD WRIST COMPLETE WO GRF
Medium Descr ARTHRODESIS WRIST COMPLETE W/O BONE GRAFT
Long Descr Arthrodesis, wrist; complete, without bone graft (includes radiocarpal and/or intercarpal and/or carpometacarpal joints)
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) 1 - 150% payment adjustment for bilateral procedures applies.
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) 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 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 1
CCS Clinical Classification 162 - Other OR therapeutic procedures on joints

This is a primary code that can be used with these additional add-on codes.

20705 Add-on Code MPFS Status: Active Code APC N Removal of drug-delivery device(s), intra-articular (List separately in addition to code for primary procedure)
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).
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.)
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.
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).
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
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
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2025-01-01 Changed Short Description changed.
Pre-1990 Added Code added.
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