Summary & Overview
CPT 24366: Elbow Prosthetic Cap on Proximal Radius
CPT code 24366 denotes surgical implantation of an artificial prosthetic cap on the proximal radius to restore smooth, painless elbow motion. The code captures a specific reconstructive procedure in orthopedic surgery and is relevant for providers, hospitals, and payers involved in musculoskeletal care. Nationally, procedures addressing elbow joint reconstruction affect surgical practice patterns, resource use, and post-operative care pathways.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for the procedure, common sites of service, and typical billing considerations tied to the code. The publication summarizes available benchmarks and payer coverage patterns where available, highlights relevant policy updates that affect reimbursement and prior authorization practices, and situates CPT code 24366 within related orthopedic procedure coding.
This report is intended for clinicians, billing professionals, and policy analysts seeking concise guidance on the clinical meaning of the code, payer coverage landscape, and the types of analyses and operational details included in the full publication. Data not available in the input will be identified explicitly in the detailed sections of the full report.
Billing Code Overview
CPT code 24366 describes a surgical procedure in which the provider fits an artificial prosthetic cap on the proximal (upper) end of the radius to restore smooth, painless elbow movement. This procedure is a type of orthopedic reconstruction focused on the elbow joint.
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Service type: Orthopedic prosthetic implantation / joint reconstruction
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Typical site of service: Hospital operating room or outpatient surgical center
Clinical & Coding Specifications
Clinical Context
A 56-year-old patient presents with persistent elbow pain, limited range of motion, and mechanical crepitus after a comminuted radial head fracture that failed closed reduction and initial internal fixation. Conservative measures including immobilization, physical therapy, and corticosteroid injections have not restored functional range or relieved pain. Imaging confirms post-traumatic deformity or nonunion of the radial head with joint surface irregularity. The orthopedic surgeon plans an open procedure to excise the damaged radial head and fit an artificial prosthetic cap on the proximal radius to recreate a smooth articulating surface and restore painless elbow motion. The typical workflow includes preoperative evaluation and consent, anesthesia assessment (general or regional), intraoperative removal of damaged bone/cartilage, sizing and implantation of the prosthetic cap, stability and range-of-motion assessment intraoperatively, wound closure, and postoperative pain control and rehabilitation. The typical site of service is an ambulatory surgery center or hospital operating room with an orthopedic surgical team, surgical technologist, and perioperative nursing care. Discharge typically occurs same day or after an overnight observation depending on comorbidity and intraoperative course.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
50 | Bilateral procedure | Use when the procedure is performed on both elbows during the same operative session. |