The Orthopedic Billing Workflow
Orthopedic billing is more complex than most medical specialties because it combines high-volume E/M visits with high-value surgical cases, each requiring different billing workflows. A busy orthopedic practice generates two distinct claim types: office visit claims (E/M, injections, casting) that process quickly, and surgical claims that involve prior authorization, operative reports, assistant surgeon billing, and 90-day global period management. The billing team needs proficiency in both workflows.
Step 1: Pre-Visit and Pre-Surgical Authorization
For office visits, verify insurance eligibility and benefits before the appointment. For surgical cases, obtain prior authorization well before the scheduled surgery date. Most commercial payers require authorization for elective orthopedic procedures, particularly joint replacements, spine surgery, and arthroscopic procedures. Authorization requests typically require clinical documentation including imaging reports, failed conservative treatment history, and functional limitation assessments.
Submit surgical authorization requests 2 to 3 weeks before the planned surgery date. Expedited requests may be needed for acute fracture repairs. Track authorization status daily until approval is received. Surgery scheduled without confirmed authorization puts the entire surgical fee at risk of denial.
Step 2: Surgical Encounter Documentation
The operative report is the foundation of surgical billing. It must describe the procedure in sufficient detail to support the CPT code selected, including the surgical approach, specific techniques used, implants placed, and any complications encountered. For multi-procedure cases, each procedure must be described separately with clear documentation of why each was medically necessary.
Operative reports should be completed within 24 hours of surgery. Delays in operative report completion delay claim submission and extend the revenue cycle for high-value surgical claims.
Step 3: Code Selection for Surgical Cases
Surgical coding in orthopedics requires knowledge of bundling rules, modifier usage, and multi-procedure payment policies. When multiple procedures are performed during the same surgical session, the primary procedure is billed without a modifier, and secondary procedures receive modifier 51 (multiple procedures). Some payers reduce the secondary procedure reimbursement by 50% under the multiple procedure payment reduction (MPPR) policy.
Modifier 59 (distinct procedural service) is used when two procedures that would normally bundle are performed on different anatomical sites or during different surgical sessions. In orthopedics, this commonly applies when treating injuries on both extremities during the same surgery.
Step 4: Global Period Management
After surgery, the 90-day global period begins. The billing team must flag the patient account to prevent billing routine post-operative visits during this window. The practice management system should automatically track global period start and end dates and prevent charge entry for global-included services. If the patient requires care for an unrelated condition during the global period, the visit can be billed with modifier 24.
Step 5: Office Visit Billing
Non-surgical office visits follow the standard E/M billing workflow: encounter documentation, code selection based on MDM, modifier application for same-day procedures, and claim submission within 48 hours. Orthopedic offices that perform in-house X-rays should bill the professional interpretation (modifier 26) or global X-ray codes depending on whether they own the equipment.
Step 6: Implant and Supply Billing
Orthopedic surgical cases often involve implants (screws, plates, prosthetic joints) that must be billed separately from the surgical procedure. Implant costs are typically passed through to the payer using HCPCS codes. For outpatient surgical centers, implant billing is critical to recovering the cost of high-value devices. Track implant invoices against billed charges to ensure no implant cost goes unbilled.