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Official Description

Open treatment of spontaneous hip dislocation (developmental, including congenital or pathological), replacement of femoral head in acetabulum (including tenotomy, etc); with femoral shaft shortening

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 27259 refers to the open treatment of spontaneous hip dislocation, which can occur due to developmental dysplasia of the hip (DDH). This condition may arise from congenital malformations of the hip joint or develop during growth, impacting the osseous structures, joint capsule, and surrounding soft tissues. The procedure involves a comprehensive approach to address the dislocation, which includes the replacement of the femoral head into the acetabulum, along with the shortening of the femoral shaft. The treatment typically necessitates an adductor tenotomy, which is a surgical procedure that involves cutting the adductor tendon to facilitate the reduction of the dislocated hip. The surgical intervention begins with a skin incision made in the medial aspect of the groin, allowing access to the adductor tendon and other soft tissue structures that may need to be released to achieve proper alignment and reduction of the dislocation. Following the repositioning of the femoral head, the procedure is further complicated by the need for an osteotomy, where the femoral shaft is intentionally shortened to improve the stability and function of the hip joint. This complex surgical procedure is critical for restoring normal hip function and preventing future dislocations, ensuring that the hip is maintained in an optimal position post-surgery, often with the application of a splint or hip spica cast to support recovery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 27259 is indicated for the treatment of spontaneous hip dislocation, particularly in cases associated with developmental dysplasia of the hip (DDH). The following conditions may warrant this surgical intervention:

  • Developmental Dysplasia of the Hip (DDH) - A condition where the hip joint is improperly formed, leading to dislocation.
  • Congenital Malformations - Structural abnormalities present at birth that affect the hip joint.
  • Pathological Dislocation - Dislocation resulting from underlying pathological conditions affecting the hip joint.

2. Procedure

The procedure for CPT® Code 27259 involves several critical steps to effectively treat the spontaneous hip dislocation:

  • Step 1: Incision and Exposure - A skin incision is made in the medial aspect of the groin to access the hip joint. This incision allows the surgeon to expose the adductor tendon and other relevant soft tissue structures that may need to be addressed during the procedure.
  • Step 2: Tenotomy and Soft Tissue Release - The adductor tendon is incised, and any additional soft tissue structures that may be contributing to the dislocation are released. This step is crucial for facilitating the reduction of the dislocated femoral head.
  • Step 3: Osteotomy of the Femoral Shaft - Prior to the reduction of the dislocated femoral head, the surgeon marks the planned osteotomy sites on the proximal femoral shaft. A series of cuts are made to shorten the femoral shaft, and bone is excised to create the necessary adjustments.
  • Step 4: Bone Wedge Placement - Wedges created from the excised bone are strategically placed at the osteotomy sites to maintain the proper angles in the cut bone, ensuring stability and alignment.
  • Step 5: Bone Grafting - Some of the excised bone may be morcellized and utilized for bone grafting, which aids in the healing process and supports the structural integrity of the femur.
  • Step 6: Internal Fixation - Internal fixation devices such as pins, screws, or wires are employed as needed to maintain the shape and position of the bone following the osteotomy and reduction.
  • Step 7: Reduction of the Femoral Head - The femoral head is carefully repositioned within the acetabulum to achieve proper alignment and stability.
  • Step 8: Closure - The incisions are closed in layers to promote optimal healing, and a hip spica cast is applied as necessary to maintain the hip in abduction during the recovery period.

3. Post-Procedure

After the completion of the procedure, post-operative care is essential for recovery. Patients are typically monitored for any complications and to ensure proper healing of the surgical site. The application of a hip spica cast is common to maintain the hip in an abducted position, which is crucial for the stability of the joint during the healing process. Follow-up appointments are necessary to assess the recovery progress, and physical therapy may be recommended to restore mobility and strength in the hip joint as healing progresses. The overall recovery time may vary based on individual patient factors and the extent of the surgical intervention.

Short Descr TREAT HIP DISLOCATION
Medium Descr OPTX SPON HIP DISLC RPLCMT FEM HEAD ACTBLM SHRT
Long Descr Open treatment of spontaneous hip dislocation (developmental, including congenital or pathological), replacement of femoral head in acetabulum (including tenotomy, etc); with femoral shaft shortening
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 Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 146 - Treatment, fracture or dislocation of hip and femur

This is a primary code that can be used with these additional add-on codes.

20702 Add-on Code MPFS Status: Active Code APC N Manual preparation and insertion of drug-delivery device(s), intramedullary (List separately in addition to code for primary procedure)
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.)
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
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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