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Official Description

Tenotomy, open, tendon flexor; foot, single or multiple tendon(s) (separate procedure)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 28230 refers to an open tenotomy of the flexor tendon(s) in the foot. A tenotomy is a surgical procedure that involves the cutting of a tendon to relieve tension or to correct a deformity. In this case, the focus is on the flexor tendons, which are responsible for bending the toes and facilitating movements such as gripping and pushing off the ground. The procedure is performed through an incision made in the skin over the affected tendon, allowing the surgeon to access and expose the tendon directly. Once the tendon is identified, it is incised, severed, or released as necessary to achieve the desired therapeutic outcome. The use of electrocautery during the procedure helps to control any bleeding that may occur, ensuring a cleaner surgical field. After the tendon has been addressed, the surgeon will close the operative wound in layers to promote proper healing. This procedure can be performed on one or multiple tendons in the foot and is classified as a separate procedure, meaning it is distinct from other surgical interventions that may be performed concurrently.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The open tenotomy of the flexor tendon(s) in the foot, as described by CPT® Code 28230, is indicated for various conditions that may require surgical intervention to alleviate pain, restore function, or correct deformities. The following are explicitly provided indications for this procedure:

  • Flexor tendon contracture - A condition where the flexor tendons are shortened, leading to an inability to fully extend the toes.
  • Deformities of the toes - Such as hammertoe or claw toe, where the abnormal positioning of the toes may necessitate tendon release to restore normal alignment.
  • Chronic pain - Resulting from tendon overuse or injury, which may require surgical intervention to relieve symptoms.

2. Procedure

The procedure for an open tenotomy of the flexor tendon(s) in the foot involves several key steps, each critical to the successful outcome of the surgery. The following procedural steps are outlined:

  • Step 1: Incision - The surgeon begins by making an incision in the skin over the area of the flexor tendon that is to be treated. This incision is carefully placed to minimize damage to surrounding tissues and to provide adequate access to the tendon.
  • Step 2: Dissection - After the incision is made, the surgeon dissects the soft tissues surrounding the tendon. This step is essential to expose the tendon adequately while preserving the integrity of nearby structures, such as nerves and blood vessels.
  • Step 3: Tendon Exposure - Once the soft tissues are dissected, the flexor tendon is fully exposed. This allows the surgeon to visualize the tendon and assess the extent of the condition that requires treatment.
  • Step 4: Tendon Incision - The surgeon then incises the tendon, severing or releasing it as necessary. This step is crucial for addressing the underlying issue, whether it be a contracture or deformity.
  • Step 5: Hemostasis - During the procedure, any bleeding that occurs is controlled using electrocautery. This technique helps to minimize blood loss and maintain a clear surgical field.
  • Step 6: Wound Closure - After the tendon has been treated, the surgeon closes the operative wound in layers. This layered closure technique is important for promoting proper healing and reducing the risk of complications.

3. Post-Procedure

Following the open tenotomy of the flexor tendon(s), patients can expect specific post-procedure care and considerations. It is important to monitor the surgical site for any signs of infection or complications. Patients may be advised to keep the foot elevated to reduce swelling and to follow specific instructions regarding weight-bearing activities. Rehabilitation may include physical therapy to restore function and strength to the affected area. The recovery process will vary depending on the extent of the procedure and the individual patient's healing response. Regular follow-up appointments will be necessary to assess the healing progress and to determine when normal activities can be resumed.

Short Descr INCISION OF FOOT TENDON(S)
Medium Descr TX OPN TENDON FLEXOR FOOT SINGLE/MULT TENDON SPX
Long Descr Tenotomy, open, tendon flexor; foot, single or multiple tendon(s) (separate procedure)
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) 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 Office-based surgical procedure added to ASC list in CY 2008 or later with MPFS nonfacility PE RVUs; payment based on MPFS nonfacility PE RVUs.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5B - Ambulatory procedures - musculoskeletal
MUE 1
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
LT Left side (used to identify procedures performed on the left side of the body)
T6 Right foot, second digit
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).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
ET Emergency services
F3 Left hand, fourth digit
F8 Right hand, fourth digit
F9 Right hand, fifth digit
GC This service has been performed in part by a resident under the direction of a teaching physician
GW Service not related to the hospice patient's terminal condition
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
T7 Right foot, third digit
T8 Right foot, fourth digit
T9 Right foot, fifth digit
TA Left foot, great toe
TL Early intervention/individualized family service plan (ifsp)
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
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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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