1. What Is Global Days Calculation?

Global Days refer to the postoperative period during which a surgeon is responsible for a patient's care following a procedure. This period varies by CPT code and is determined by medical billing guidelines.

2. How Does The Calculator Work?

The calculator uses a predefined lookup table:

Where:

• CPT Code — Current Procedural Terminology code for the surgical procedure
• Lookup — Database query to find the associated global period

Explanation: Each CPT code has an assigned global period (0, 10, or 90 days) that determines postoperative care responsibilities.

3. Importance Of Global Days

Details: Understanding global periods is essential for proper medical billing, determining surgeon responsibility, and coordinating postoperative care between providers.

4. Using The Calculator

Tips: Enter a valid CPT code to retrieve the associated global period. The calculator will return 0, 10, or 90 days, or "Not Found" for unrecognized codes.

5. Frequently Asked Questions (FAQ)

Q1: What are the different global period categories?
A: Global periods are categorized as: 0-day (minor procedures), 10-day (minor surgeries), or 90-day (major surgeries).

Q2: What does a 0-day global period mean?
A: A 0-day global period means the surgeon is only responsible for the procedure day itself with no postoperative care included.

Q3: How are global days determined?
A: Global days are assigned by the Centers for Medicare & Medicaid Services (CMS) and published in the Medicare Physician Fee Schedule.

Q4: Can global periods change?
A: Yes, CMS occasionally updates global period assignments, so it's important to use current references.

Q5: Are global periods the same for all payers?
A: While most commercial payers follow Medicare guidelines, some may have different global period assignments.