A global period is a set number of days after a surgery during which all routine follow-up care is bundled into the original surgical fee. Instead of being billed separately for each post-operative visit, dressing change, or staple removal, those services are considered part of the surgery itself. The global period exists in Medicare and most commercial insurance billing, and it directly affects what you pay (or don’t pay) after a procedure.
The Three Standard Global Periods
Every surgical procedure is assigned one of three global period lengths, based on how complex it is.
- 0-day global period: Covers only the day of the procedure. This applies to endoscopies and very minor procedures. There’s no pre-operative window and no post-operative days included beyond the procedure date itself.
- 10-day global period: Covers the day of surgery plus 10 days afterward, for a total of 11 days. This applies to minor surgical procedures like small skin excisions or wound repairs. There’s no pre-operative day included.
- 90-day global period: Covers one day before surgery, the day of surgery, and 90 days afterward, for a total of 92 days. This applies to major procedures like joint replacements, open-heart surgery, or spinal fusions.
The distinction matters because any routine follow-up visit that falls within that window is already paid for as part of the surgical fee. Your surgeon’s office should not be generating a separate charge for those visits, and you should not owe a new copay for standard post-operative care during that time.
What’s Included in the Global Fee
The global surgical package covers all professional services related to the surgery that happen during the post-operative window. That includes dressing changes, incisional care, removal of staples, sutures, drains, tubes, or casts, and catheter insertion or removal. It also covers routine post-operative pain management by the surgeon and follow-up office visits related to the original procedure. If a complication arises that can be managed in the office or at bedside without returning to the operating room, that care is included too.
Think of it this way: anything that’s a normal, expected part of recovering from that specific surgery is bundled in. The surgeon was paid for the entire episode of care, not just the time spent in the operating room.
What’s Not Included
The global period only covers care directly related to the surgery. Several categories of services can be billed separately.
For major surgeries with a 90-day global period, the initial consultation or evaluation to determine whether you need surgery in the first place is not part of the global package. That visit is billed on its own. Diagnostic tests and imaging, such as X-rays or blood work ordered during the post-operative period, are also billed separately. If you see your surgeon for a completely unrelated problem during the global window, like a new illness or an injury that has nothing to do with your surgery, that visit is not included either. The same goes for management of pre-existing conditions like diabetes or heart disease, even if those conditions require attention during your recovery.
Any care that arises after the global period ends is billed as a new service, regardless of whether it relates to the original surgery.
How Complications Are Handled
This is where the rules get nuanced. If a post-operative complication can be treated in the office or at the bedside, it’s considered part of the global package. Your surgeon absorbs that cost. But if a complication requires a return trip to the operating room, endoscopy suite, or catheterization lab, it can be billed separately.
When a patient does go back to the operating room for a complication, the payment is reduced. The insurer only pays for the surgical portion of the work, not the pre-operative and post-operative components, since those are already covered under the original global period. In practice, this means the surgeon receives roughly 75 to 80 percent of the normal fee for the second procedure. Importantly, the original global period clock does not reset. The end date stays tied to the first surgery, not the complication procedure.
Staged and Related Procedures
Sometimes a surgeon plans from the start to perform a procedure in stages. A first operation handles one part of the problem, and a second operation, weeks later, completes the treatment. These planned follow-up surgeries are not considered complications. They start their own new global period, and they’re typically reimbursed at the full rate rather than the reduced rate that applies to complication-related returns to the operating room.
A similar situation arises when an initial surgery is diagnostic and a second procedure provides the actual treatment. The treatment surgery is billed separately and begins its own global window.
How This Affects Your Bill
For patients, the global period is mostly good news. After a major surgery like a hip replacement, you have roughly 13 weeks of follow-up visits with your surgeon that are already factored into the surgical fee. You shouldn’t see separate professional charges for those routine check-ins, and you shouldn’t owe additional copays for them.
Where confusion often arises is when other providers are involved. If your primary care doctor manages your blood pressure during recovery, that’s a separate service. If a radiologist reads a post-operative X-ray, that’s separate. If you’re hospitalized and a different specialist manages a condition unrelated to the surgery, those charges are also outside the global package. The global period applies specifically to the surgeon’s professional services related to the procedure they performed.
If you see an unexpected charge on a bill for a visit that seemed like routine post-operative care within the global window, it’s worth calling the billing department. It could be a coding error, or it could be that the visit was classified as unrelated to the surgery. Either way, understanding what the global period covers gives you a concrete basis for questioning a charge that doesn’t look right.