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Official Description

Arthrotomy, with synovectomy, ankle;

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 27625 refers to an arthrotomy with synovectomy of the ankle. This surgical intervention is performed to address conditions affecting the synovial tissue, which lines the ankle joint and is responsible for producing synovial fluid. In cases where the synovium becomes inflamed—often due to conditions such as rheumatoid arthritis or synovial proliferative disorders—it can lead to an overproduction of synovial fluid, resulting in joint effusion. The surgical approach to the ankle joint is determined by the location of the inflamed synovial tissue. During the procedure, a careful incision is made through the skin and soft tissues, ensuring the protection of surrounding nerves and blood vessels. Once the ankle joint capsule is accessed, the surgeon inspects the joint for any signs of injury, disease, or infection. A motorized shaver is then utilized to excise the inflamed synovial tissue, with meticulous attention to preserving the integrity of the underlying vascular and nervous structures. Following the removal of the synovium, the joint is irrigated with saline to clear any residual debris. The procedure concludes with the closure of the joint capsule, followed by a layered closure of the overlying soft tissues and skin, ensuring proper healing and recovery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 27625 is indicated for various conditions that lead to inflammation of the synovial tissue in the ankle joint. These indications include:

  • Rheumatoid Arthritis - A chronic inflammatory disorder that affects the joints, leading to synovial inflammation and excess fluid production.
  • Synovial Proliferative Disorder - A condition characterized by the abnormal growth of synovial tissue, which can cause joint swelling and pain.
  • Joint Effusion - The accumulation of excess synovial fluid in the joint space, often resulting from inflammation or injury.

2. Procedure

The procedure for CPT® Code 27625 involves several critical steps to ensure effective treatment of the inflamed synovial tissue in the ankle joint. The steps are as follows:

  • Step 1: Incision - The surgeon begins by making an incision in the skin over the ankle, carefully extending it through the soft tissues while protecting the underlying nerves and vascular structures. This initial incision is crucial for accessing the ankle joint.
  • Step 2: Joint Capsule Access - After the incision is made, the ankle joint capsule is incised to allow direct access to the joint. This step is essential for inspecting the joint for any signs of injury, disease, or infection.
  • Step 3: Inspection - Once the joint capsule is opened, the surgeon inspects the interior of the ankle joint. This inspection helps to identify the extent of the synovial inflammation and any other potential issues that may need to be addressed.
  • Step 4: Synovectomy - A motorized shaver is then employed to remove the inflamed synovial tissue. The surgeon must take care to resect all affected tissue while avoiding damage to the underlying vascular and nervous structures, ensuring that the joint remains functional post-surgery.
  • Step 5: Joint Irrigation - After the synovium has been removed, the joint is flushed with saline. This irrigation step is important for clearing any debris or residual tissue from the joint space, promoting a clean environment for healing.
  • Step 6: Closure - The final step involves closing the joint capsule and performing a layered closure of the overlying soft tissues and skin. This meticulous closure is vital for proper healing and minimizing the risk of complications.

3. Post-Procedure

Post-procedure care following an arthrotomy with synovectomy of the ankle involves monitoring for any signs of complications, such as infection or excessive swelling. Patients may be advised to rest the affected ankle and may require physical therapy to regain strength and mobility. Pain management strategies will also be discussed, and follow-up appointments will be scheduled to assess the healing process and ensure that the joint is recovering appropriately.

Short Descr REMOVE ANKLE JOINT LINING
Medium Descr ARTHROTOMY W/SYNOVECTOMY ANKLE
Long Descr Arthrotomy, with synovectomy, ankle;
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 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 162 - Other OR therapeutic procedures on joints
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.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 to the usual procedure number.
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
F9 Right hand, fifth digit
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
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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2010-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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