Free orthopedic tool
Global period and post-op modifier checker
Enter the original procedure's global period and the two dates, answer three questions about today's service, and it tells you whether it is billable and which modifier applies. Runs in your browser. No name field. No patient data.
Select a global period, or choose "I don't know" to look it up.
Educational reference only. Not coding, billing or legal advice. Results follow Medicare and CPT rules as of the date shown. Commercial and workers' compensation payers may differ. Verify against the current fee schedule and your payer policy before billing.