Summary & Overview
CPT 23473: Revision Shoulder Arthroplasty with Prosthesis Exchange
CPT code 23473 captures revision shoulder arthroplasty — removal and replacement of a previously implanted shoulder prosthesis, including revision of the glenoid or humeral component and potential use of an allograft. This procedure is clinically important nationwide because it addresses failed, loose, or damaged shoulder implants that can cause pain, dysfunction, and progressive joint damage. Revision shoulder arthroplasty is resource-intensive and has implications for surgical capacity, implant costs, and post-acute care needs.
Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication summarizes how CPT code 23473 is used across facility types, outlines common clinical scenarios prompting revision, and summarizes payer coverage patterns and coding considerations where available.
Readers will find a concise clinical description of the service, the typical sites of care (hospital operating room or ambulatory surgery center), and an overview of the operational and billing context for revision shoulder arthroplasty. The report highlights benchmarks, reimbursement and coding considerations, and policy-relevant updates that affect coverage and utilization for this high-cost surgical procedure. Data not available in the input will be noted as such in relevant sections.
Billing Code Overview
CPT code 23473 describes a revision arthroplasty of the shoulder, a surgical procedure in which a previously implanted artificial shoulder prosthesis is removed and replaced with a new prosthesis. The surgeon may revise either the glenoid or humeral component and may use an allograft as part of the reconstruction. The procedure addresses a loose, damaged, or failing prosthesis to prevent further joint damage.
Service type: Surgical — Revision Shoulder Arthroplasty
Typical site of service: Inpatient or outpatient hospital operating room, or ambulatory surgery center, depending on clinical complexity and payer/site capabilities.
Clinical & Coding Specifications
Clinical Context
A 72-year-old patient with a history of primary anatomic shoulder arthroplasty presents with progressive shoulder pain, radiographic evidence of component loosening of the glenoid component, and instability of the joint. Conservative management including activity modification, analgesics, and physical therapy failed to relieve symptoms. Preoperative workup includes shoulder radiographs and CT scan to evaluate bone loss, routine medical clearance, and preoperative anesthesia assessment. In the operating room under general anesthesia with regional block, the orthopedic surgeon removes the loose glenoid prosthesis, prepares the bone bed, may use an allograft to reconstruct bone defects, and implants a revised glenoid component. Intraoperative cultures are obtained if infection is suspected. Postoperative care includes pain control, immobilization in a sling, early passive range-of-motion per surgeon protocol, wound checks, and follow-up radiographs to confirm component positioning and early healing. The clinical workflow commonly involves scheduling in an ambulatory surgery center or hospital operating room with implant inventory and possible blood management resources available.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Not typically appended; placeholder in provided list |
11 |