Summary & Overview
CPT 27110: Iliopsoas Transfer to Greater Trochanter
CPT code 27110 represents an orthopedic surgical procedure in which the iliopsoas muscle is transferred from the lesser trochanter to the greater trochanter to address weak hip abductors and improve lateral hip stability. The code captures a reconstructive muscle/tendon transfer that can affect patient mobility, rehabilitation trajectories, and surgical resource utilization nationwide. It matters clinically for surgical planning and post-operative rehabilitation, and administratively for procedure classification and billing consistency.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and typical settings, a summary of common billing modifiers and service-line considerations, and a framework for comparing payer coverage approaches and reimbursement benchmarks where available. The publication also outlines the expected surgical context, typical sites of service, and operational implications for hospitals and ambulatory surgical centers.
This summary is intended for national audiences including health plan analysts, surgical providers, revenue cycle professionals, and policy analysts who need a clear, clinically grounded description of CPT code 27110 and the practical billing and coverage context associated with iliopsoas-to-greater-trochanter transfer procedures. Data not available in the input are noted as such in relevant sections.
Billing Code Overview
CPT code 27110 describes a surgical transfer of the iliopsoas muscle from the lesser trochanter to the greater trochanter of the femur. The procedure is performed to compensate for weak hip abductor muscles by repositioning the iliopsoas insertion to improve lateral hip stability and gait mechanics.
Service type: Orthopedic reconstructive procedure, tendon/muscle transfer
Typical site of service: Inpatient or outpatient surgical setting, commonly performed in hospital operating rooms or ambulatory surgical centers
Clinical & Coding Specifications
Clinical Context
A typical patient is an adolescent or young adult with abductor mechanism insufficiency causing hip instability or Trendelenburg gait, commonly after neuromuscular conditions, congenital hip disorders, or failed prior hip surgery. The patient presents with lateral hip pain, limp, and positive Trendelenburg sign. Preoperative workup includes history and physical exam, gait assessment, pelvic and hip radiographs, and often MRI to evaluate muscle integrity. The operative plan is a transfer of the iliopsoas tendon from the lesser trochanter to the greater trochanter (27110) to improve hip abductor function.
Workflow: outpatient or inpatient orthopedic evaluation → preoperative clearance and imaging → informed consent and anesthesia evaluation → operative procedure performed in an operating room with fluoroscopic or open exposure of the proximal femur → intraoperative confirmation of tendon transfer and fixation → postoperative recovery with pain control and physical therapy initiation, weight-bearing restrictions, and follow-up visits for wound check and functional assessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Unspecified — not commonly used in billing | Rarely used; typically not appended to operative CPTs in standard claims |