1. What is the Global Period End Date?

The Global Period End Date marks the conclusion of the postoperative period during which all related services are included in the surgical package. This calculation follows Palmetto GBA's methodology for determining the global surgical period.

2. How Does the Calculator Work?

The calculator uses the standard formula:

Where:

• Surgery Date — The date when the surgical procedure was performed
• Global Days — The length of the global period (0, 10, or 90 days)

Explanation: The subtraction of 1 day accounts for the fact that the surgery date itself counts as day 0 in the global period calculation.

3. Importance of Global Period Calculation

Details: Accurate calculation of the global period is essential for proper billing and compliance. Services provided during the global period that are related to the surgery should not be billed separately.

4. Using the Calculator

Tips: Enter the surgery date and select the appropriate global days (0, 10, or 90) based on the procedure performed. The calculator will determine the last day of the global period.

5. Frequently Asked Questions (FAQ)

Q1: What are the different global period lengths?
A: Procedures have either 0-day (minor procedures), 10-day (many minor surgeries), or 90-day (major surgeries) global periods.

Q2: Why subtract 1 day in the calculation?
A: The surgery date is considered day 0, so adding the full global days would overshoot by one day.

Q3: How is the global period used in billing?
A: Most postoperative care during the global period is included in the surgical payment and shouldn't be billed separately.

Q4: Are there exceptions to global period rules?
A: Yes, some services like unrelated evaluations or treatment of complications may be billable during the global period.

Q5: Where can I find a procedure's global days?
A: The Medicare Physician Fee Schedule Look-Up Tool provides global days for each CPT code.