Strategies to Improve Orthopedic Surgery Billing Practices
To ensure accuracy and efficiency, consider these important strategies and steps for managing orthopedic surgery billing properly.
Challenge: Addressing complex procedures
Solution: Pay attention to CPT codes and internal documentation
Orthopedic surgery CPT codes are at the heart of the billing process and must be applied correctly across surgical, pre-surgical, and follow-up care. Even small coding differences can impact reimbursement, making accuracy critical.
Example: If a rotator cuff repair is coded as a debridement instead of a repair, the claim will be reimbursed at a significantly lower rate. Proper code selection ensures payment reflects the complexity of the procedure performed.
Challenge: Managing coding specifics
Solution: Apply modifiers and global surgical package rules correctly
Many orthopedic surgeries fall under global surgical packages, which bundle services for a defined period (often 90 days). Applying modifiers correctly prevents unnecessary denials.
Example: A patient undergoes a total knee replacement and later requires a manipulation under anesthesia during the global period. Without modifier -58 (staged or related procedure during postoperative care), the second procedure would be bundled into the global payment and denied for separate reimbursement.
Challenge: Navigating payer differences
Solution: Closely follow orthopedic billing payer guidelines
Because requirements differ across payers, it’s vital to track and comply with guidelines such as prior authorization, documentation standards, and reimbursement for assistants.
Example: One payer may cover an assistant surgeon for a spinal fusion with modifier -80, while another requires documentation proving medical necessity for the assistant. Submitting claims without confirming payer-specific rules often leads to denials or payment delays.
Challenge: Responding to reimbursement changes
Solution: Strengthen denial management
Denials are common in orthopedic surgery billing due to frequent rule updates. A strong denial management process and familiarity should include:
- Denial identification: Monitor claim status continuously for fast response.
- Corrected claims: Fix and resubmit errors promptly.
- Documentation management: Provide additional details during appeals when necessary.
- Root cause analysis: Track and address recurring denial reasons to prevent them in the future.
Example: CMS updates its coverage guidelines for arthroscopic knee procedures, excluding certain indications. If your billing team isn’t aware of the change, claims may be repeatedly denied. By tracking updates and analyzing denial patterns, the team can adjust coding practices quickly and resubmit for proper payment.
Appeals may overturn denials, but they are costing your organization money due to the time spent on them. For this reason, ensure that a process is in place to analyze why denials are occurring. Then, make adjustments to practices to minimize further denials.
2025 Updates in Orthopedic Surgery Billing
The 2025 Medicare Physician Fee Schedule Final Rule reduced the overall conversion factor by about 2.9%, lowering Medicare payment rates across all specialties. For orthopedic surgery specifically, the American Association of Hip and Knee Surgeons (AAHKS) estimates this translates to roughly a 1% decline in Medicare reimbursements to orthopedic surgeons overall. At the procedure level, AAHKS’ analysis indicates that reimbursement for total knee arthroplasty (CPT 27447) will see a slight dip from a national average of $1,262.68 in 2024 to $1,257.68 in 2025, representing about a 0.4% reduction.
In addition to these payment changes, CMS finalized important billing updates for global surgical packages which are especially relevant for orthopedic procedures with typical 90-day global periods. CMS broadened the use of transfer-of-care modifier –54 to apply whenever only the surgical portion of the package is furnished, even without formal care transfer. This shift ensures more accurate breakdowns of billing components across specialties.
To further enhance precision in post-op care billing, CMS introduced a new add-on code called HCPCS G0559 (sometimes previously referred to as GPOC1), designed to reflect the time and resources of practitioners outside the original surgeon providing postoperative management. This is particularly impactful for orthopedic practices where postoperative follow-up may involve different providers than the operating surgeon.
