90 Day Global Period Calculator



Welcome to the 90 Day Global Period Calculator – a handy tool designed to simplify the calculation process for medical practitioners and billing professionals. This article will guide you on how to use the calculator effectively, explain the underlying formula, provide examples, address frequently asked questions, and conclude with a summary.

How to Use

Using the 90 Day Global Period Calculator is straightforward. Simply input the necessary details, hit the “Calculate” button, and the result will be displayed. This tool aids in determining the appropriate billing period for medical procedures, ensuring accurate reimbursement and compliance with the global period regulations.


The formula used in this calculator is precise and adheres to industry standards:


Let’s consider an example. Suppose a medical procedure has 10 preoperative days, 5 intraoperative days, and 15 postoperative days. Applying the formula:

Total Global Days=10+5+15=30

The result is 30, indicating a 30-day global period for the given procedure.


Q1: How do I determine preoperative, intraoperative, and postoperative days?

A1: Preoperative days include the day before the procedure, intraoperative days are the days of the actual procedure, and postoperative days include the recovery period after the procedure.

Q2: Can I use decimals in the days input?

A2: No, the input should be in whole numbers, representing full days.

Q3: Are weekends and holidays included in the calculation?

A3: Yes, weekends and holidays are considered as part of the global period.


The 90 Day Global Period Calculator simplifies the complex task of determining the appropriate billing period for medical procedures. By adhering to the precise formula and providing accurate results, this tool ensures compliance and aids in the efficient management of billing processes.

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