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Official Description

Transfer, adductor to ischium

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 27098 involves the surgical transfer of the adductor muscles, specifically the adductor longus and brevis, to the ischium. These muscles are situated on the medial, or inner, side of the hip joint and play a crucial role in the movement and stabilization of the hip. The transfer is typically indicated for patients suffering from adduction contracture, which is a condition characterized by the tightening of the muscles that leads to an abnormal inward positioning of the hip. This condition can be particularly prevalent in individuals with spastic type cerebral palsy, where muscle spasticity can result in subluxation, or partial dislocation, of the hip joint. The surgical intervention aims to alleviate the contracture and improve hip function by repositioning the tendons of the adductor muscles. The procedure begins with a skin incision made in the medial aspect of the groin, allowing access to the adductor longus tendon, which is then exposed, divided, and transferred to the ischial tuberosity. The adductor brevis may also be addressed in a similar manner, ensuring comprehensive treatment of the affected musculature.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The transfer of the adductor muscles to the ischium, as described by CPT® Code 27098, is indicated for specific conditions that affect the hip joint. The primary indications for this procedure include:

  • Adduction Contracture This condition involves the tightening of the adductor muscles, leading to an inward pull on the hip joint, which can restrict movement and cause discomfort.
  • Subluxation of Hip This refers to a partial dislocation of the hip joint, which can occur due to muscle imbalances and spasticity, particularly in patients with cerebral palsy.
  • Spastic Type Cerebral Palsy Individuals with this type of cerebral palsy often experience increased muscle tone and spasticity, which can lead to functional limitations and deformities in the hip joint.

2. Procedure

The surgical procedure for transferring the adductor muscles to the ischium involves several key steps, each critical for achieving the desired outcome. The steps are as follows:

  • Step 1: Skin Incision A skin incision is made in the medial aspect of the groin. This incision provides access to the underlying structures, specifically the adductor longus tendon, which is essential for the transfer procedure.
  • Step 2: Exposure of the Adductor Longus Tendon Once the incision is made, the surgeon carefully dissects the tissue to expose the adductor longus tendon. This step is crucial as it allows for the subsequent division and transfer of the tendon.
  • Step 3: Division of the Adductor Longus Tendon The adductor longus tendon is then divided. This division is necessary to facilitate the transfer of the tendon to its new attachment site on the ischium.
  • Step 4: Transfer to Ischial Tuberosity After division, the adductor longus tendon is transferred posteriorly to the ischial tuberosity. This repositioning aims to relieve the contracture and improve hip function.
  • Step 5: Addressing the Adductor Brevis In addition to the adductor longus, the adductor brevis may also be divided and/or transferred using the same technique. This step ensures that both muscles are appropriately addressed to optimize the surgical outcome.

3. Post-Procedure

Post-procedure care following the transfer of the adductor muscles to the ischium is essential for recovery and rehabilitation. Patients may require a period of immobilization to allow for proper healing of the surgical site. Physical therapy is often initiated to restore range of motion and strength in the hip joint. The expected recovery time can vary based on individual factors, but close monitoring for any complications, such as infection or improper healing, is crucial. Follow-up appointments will be necessary to assess the surgical outcome and make any adjustments to the rehabilitation plan as needed.

Short Descr TRANSFER TENDON TO PELVIS
Medium Descr TRANSFER ADDUCTOR ISCHIUM
Long Descr Transfer, adductor to ischium
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) 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 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 160 - Other therapeutic procedures on muscles and tendons
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).
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)
RT Right side (used to identify procedures performed on the right side of the body)
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Pre-1990 Added Code added.
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