Summary & Overview
CPT 0055T: CT/MRI-Guided Orthopedic Implant Navigation
CPT code 0055T captures intraoperative use of computer-assisted surgical navigation that employs CT or MRI imaging to guide and validate the selection and positioning of hip or knee implants. This technology-supported service aims to improve prosthesis alignment and placement during joint reconstruction or replacement procedures, with potential implications for surgical accuracy and patient outcomes.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a national-level overview of the clinical context for this image-guided navigation service, summaries of payer coverage trends, common billing considerations, and operational benchmarks where available. The publication outlines how the service is typically delivered in hospital operating rooms or ambulatory surgery centers and highlights documentation and coding elements relevant to claims processing.
This summary provides clinicians, coding professionals, and policy analysts with concise context on why the code matters, which payers are relevant, and what topics are covered in the full publication, including payment benchmarks, policy updates, and clinical implications for orthopedic implant procedures.
Billing Code Overview
CPT code 0055T describes use of a computer equipped with surgical navigation technology to guide and validate the type and position of an orthopedic implant using computed tomography (CT) or magnetic resonance imaging (MRI). The service assists with accurate placement and positioning of an implant prosthesis during reconstruction or replacement of a knee or hip.
Service Type: Image-guided intraoperative navigation for orthopedic implant placement
Typical Site of Service: Hospital operating room or ambulatory surgery center
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with end-stage osteoarthritis of the knee is scheduled for total knee arthroplasty. Preoperative assessment includes review of prior imaging (CT or MRI) and surgical planning for optimal implant size and alignment. Intraoperatively, the orthopedic surgeon uses a computer equipped with surgical navigation technology to register preoperative CT or MRI images to the patient’s anatomy, guide resection and implant positioning, and validate final implant type and orientation. The workflow includes: preoperative image acquisition and upload to the navigation system, intraoperative registration and tracking (reference arrays and probes), real-time navigation guidance during bone preparation and implant placement, and verification scans or checks to confirm appropriate prosthesis positioning before wound closure. Typical site of service is an operating room in a hospital or ambulatory surgery center for hip or knee arthroplasty procedures where intraoperative CT/MRI-based navigation is available. Patient monitoring and standard perioperative anesthesia care occur concurrently, and documentation includes navigation system reports, implant logs, and surgeon operative note specifying use of the navigation technology for guidance and validation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
62 | Two surgeons | When two surgeons work together as primary surgeons during the same operative session and both perform distinct parts of the procedure requiring navigation assistance |