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

Arthrodesis, midtarsal or tarsometatarsal, multiple or transverse;

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 28730 refers to the surgical technique known as arthrodesis, specifically targeting the midtarsal or tarsometatarsal joints. This surgical intervention is primarily indicated for patients suffering from severe, painful arthritis or those with congenital or acquired deformities affecting the midfoot region. The goal of the procedure is to fuse multiple joints in the midfoot to alleviate pain and restore function. During the operation, a longitudinal incision is made over the affected joints, ensuring careful handling of superficial nerves and blood vessels to minimize complications. The surgeon then exposes the joint by removing all fibrous tissue and articular cartilage, which may involve resecting bone in cases of significant deformity. The articular surfaces are meticulously prepared using an osteotome, and if necessary, a bone graft is harvested either locally or from donor sites such as the iliac crest or medial malleolus. This graft is shaped and placed into the joint space to facilitate fusion. To ensure stability during the healing process, internal fixation devices, such as Steinmann pins, interfragmentary screws, or plates and screws, are utilized. The procedure concludes with layered closure of the incisions and the application of a bulky dressing and splint to support the foot during recovery. It is important to note that CPT® Code 28730 should be used when the procedure is performed without an accompanying osteotomy, while CPT® Code 28735 is designated for cases where an osteotomy is also performed to address conditions like flatfoot deformity.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure is indicated for the following conditions:

  • Severe Painful Arthritis - This condition often leads to debilitating pain and loss of function in the midfoot, necessitating surgical intervention to improve quality of life.
  • Congenital Deformity - Patients born with structural abnormalities in the midfoot may require arthrodesis to correct alignment and function.
  • Acquired Deformity - Deformities that develop over time due to injury, disease, or other factors can also be addressed through this procedure to restore normal foot mechanics.

2. Procedure

The surgical procedure for arthrodesis of the midtarsal or tarsometatarsal joints involves several critical steps:

  • Step 1: Incision - A longitudinal incision is made over the affected midtarsal and/or tarsometatarsal joints. This incision is carefully planned to avoid damage to superficial nerves and blood vessels in the area.
  • Step 2: Joint Exposure - Once the incision is made, the surgeon exposes the joint by removing all fibrous tissue and articular cartilage. This step is crucial for preparing the joint surfaces for fusion.
  • Step 3: Bone Resection (if necessary) - In cases of severe deformity, the surgeon may need to resect bone to achieve proper alignment and prepare the joint surfaces adequately.
  • Step 4: Surface Preparation - The articular surfaces of the bones are meticulously scaled using an osteotome, ensuring a clean and stable surface for fusion.
  • Step 5: Bone Graft Harvesting - If a bone graft is required, it is harvested either locally from the surgical site or from donor sites such as the iliac crest or medial malleolus. The graft is then shaped to fit the joint space.
  • Step 6: Graft Placement - The prepared bone graft is placed into the joint space to facilitate the fusion process.
  • Step 7: Internal Fixation - To stabilize the joints during the healing process, internal fixation devices such as Steinmann pins, interfragmentary screws, or plates and screws are applied.
  • Step 8: Closure - The incisions are closed in layers to promote optimal healing, followed by the application of a bulky dressing and splint to support the foot.

3. Post-Procedure

After the arthrodesis procedure, patients can expect a recovery period that may involve immobilization of the foot to ensure proper healing of the fused joints. The application of a bulky dressing and splint is standard to provide support and protection. Patients will typically be advised on weight-bearing restrictions and may require physical therapy to regain strength and mobility in the foot. Follow-up appointments are essential to monitor the healing process and assess the success of the fusion.

Short Descr FUSION OF FOOT BONES
Medium Descr ARTHRD MIDTARSL/TARSOMETATARSAL MULT/TRANSVRS
Long Descr Arthrodesis, midtarsal or tarsometatarsal, multiple or transverse;
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)
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)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
SG Ambulatory surgical center (asc) facility service
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.
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
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.
55 Postoperative management only: when 1 physician or other qualified health care professional performed the postoperative management and another performed the surgical procedure, the postoperative component may be identified by adding modifier 55 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.
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).
CR Catastrophe/disaster related
GC This service has been performed in part by a resident under the direction of a teaching physician
SA Nurse practitioner rendering service in collaboration with a physician
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
TA Left foot, great toe
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
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
2010-01-01 Changed Code description changed.
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"