Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
RedactPHI
HIPAA-Compliant PHI Redaction
DetectICD10CM
ICD-10-CM Code Detection
Log in Register free account
1 code page views remaining. Guest accounts are limited to 1 page view. Register free account to get 5 more views.
Log in Register free account

Official Description

Synovectomy; intertarsal or tarsometatarsal joint, each

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 28070 refers to a synovectomy performed on the intertarsal or tarsometatarsal joint. A synovectomy is a surgical intervention aimed at removing the inflamed synovial tissue that lines the joints. This procedure is particularly indicated for patients suffering from conditions that lead to synovial inflammation, such as rheumatoid arthritis. During the surgery, a precise incision is made over the affected joint, which may be located in the intertarsal or tarsometatarsal region of the foot. Following the incision, the surrounding soft tissues are carefully dissected to expose the joint capsule. The joint capsule is then incised to allow access to the synovial tissue. The inflamed synovial tissue is meticulously excised using a motorized suction shaving device, which aids in the removal process while minimizing damage to the surrounding structures. It is important to note that this code is applicable for each intertarsal or tarsometatarsal joint treated, while a different code, CPT® 28072, is designated for synovectomy of each metatarsophalangeal joint.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The synovectomy procedure indicated by CPT® Code 28070 is performed for specific conditions that lead to inflammation of the synovial tissue in the joints. The following are the explicitly provided indications for this procedure:

  • Rheumatoid Arthritis This autoimmune condition causes chronic inflammation of the synovial membrane, leading to pain and swelling in the joints.
  • Other Inflammatory Joint Diseases Conditions that result in synovial inflammation may also warrant this procedure, although rheumatoid arthritis is the most common indication.

2. Procedure

The synovectomy procedure involves several critical steps to ensure the effective removal of inflamed synovial tissue. The following procedural steps are outlined:

  • Step 1: Incision The surgeon begins by making a precise incision over the affected intertarsal or tarsometatarsal joint. This incision is strategically placed to provide optimal access to the joint while minimizing trauma to surrounding tissues.
  • Step 2: Dissection of Soft Tissues After the incision, the surgeon carefully dissects the surrounding soft tissues to expose the joint capsule. This step requires meticulous attention to avoid damaging nearby structures, such as nerves and blood vessels.
  • Step 3: Incision of the Joint Capsule Once the joint capsule is adequately exposed, the surgeon incises the capsule to gain access to the synovial tissue within the joint. This incision allows for direct visualization and access to the inflamed tissue.
  • Step 4: Removal of Inflamed Synovial Tissue The inflamed synovial tissue is then removed using a motorized suction shaving device. This specialized instrument facilitates the precise excision of the tissue while minimizing bleeding and trauma to the joint.

3. Post-Procedure

Following the synovectomy procedure, patients can expect specific post-operative care and recovery considerations. It is essential to monitor the surgical site for signs of infection and to manage pain effectively. Patients may be advised to rest and elevate the affected foot to reduce swelling. Physical therapy may be recommended to restore mobility and strength in the joint. The recovery period can vary depending on the extent of the procedure and the individual patient's healing process. Regular follow-up appointments will be necessary to assess the healing progress and to determine if any further interventions are required.

Short Descr REMOVAL OF FOOT JOINT LINING
Medium Descr SYNVCT INTERTARSAL/TARSOMETATARSAL JT EA SPX
Long Descr Synovectomy; intertarsal or tarsometatarsal joint, 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) 1 - Statutory 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) P3D - Major procedure, orthopedic - other
MUE 2
CCS Clinical Classification 162 - Other OR therapeutic procedures on joints
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.
LT Left side (used to identify procedures performed on the left side of the body)
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.
47 Anesthesia by surgeon: regional or general anesthesia provided by the surgeon may be reported by adding modifier 47 to the basic service. (this does not include local anesthesia.) note: modifier 47 would not be used as a modifier for the anesthesia procedures.
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.
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.
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
RT Right side (used to identify procedures performed on the right side of the body)
SG Ambulatory surgical center (asc) facility service
T1 Left foot, second digit
T2 Left foot, third digit
T3 Left foot, fourth digit
T4 Left foot, fifth digit
T5 Right foot, great toe
T6 Right foot, second digit
T7 Right foot, third digit
T8 Right foot, fourth digit
T9 Right foot, fifth digit
TA Left foot, great toe
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
Date
Action
Notes
Pre-1990 Added Code added.
Code
Description
Code
Description
Code
Description
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"