The Post-Op Myth: Is Everything Included in the Surgery?

One of the most misunderstood areas of surgical billing.

If you've ever heard someone say, "The patient is post-op, so we can't bill anything," you're not alone.

In surgical practices across the country, providers, coders, and billing teams often struggle with one critical question: What actually constitutes a post-operative visit?

Many practices assume that every encounter occurring during the global period is automatically included in the surgical package. The reality is much more nuanced. Some post-operative services are included. Some are separately billable. Understanding the difference can protect your practice from both lost revenue and compliance risk.

What Is the Global Surgical Package?

The global surgical package is a collection of services that Medicare and most commercial payers consider included in the reimbursement for a surgical procedure. Depending on the procedure, global periods are:

• 0-day global — minor procedures.
• 10-day global — minor surgical procedures with routine follow-up.
• 90-day global — major surgical procedures.

The global payment includes certain services before, during, and after the surgery.

What Is Included in the Post-Operative Global Package?

Generally, the following services are included:

Routine Post-Operative Visits

Visits related to the normal recovery process. Examples:

• Incision checks
• Suture removal
• Drain removal
• Routine wound evaluation
• Standard post-operative follow-up

Pain Management Related to Surgery

Normal post-operative pain management.

Discussion of Recovery Progress

Expected healing and recovery discussions.

Dressing Changes

When related to routine healing.

Post-Operative Monitoring

Services necessary to ensure normal recovery.

These services are already paid for through the surgical reimbursement. Billing an E/M service for these encounters generally is not appropriate.

The Million-Dollar Question: When Does a Post-Operative Encounter Become Billable?

The key question is: Is the patient being seen for routine recovery — or for a new or separately identifiable problem?

If the encounter goes beyond normal post-operative care, a separately billable E/M service may be appropriate.

Scenario #1: Routine Post-Op Visit

A patient returns two weeks after a laparoscopic cholecystectomy. The surgeon reviews recovery, examines incisions, discusses activity restrictions, and removes steri-strips. This is routine post-operative care.

Billable? No — included in the global package.

Scenario #2: Post-Operative Wound Infection

The patient returns complaining of fever, purulent drainage, increased redness, and significant pain. The surgeon performs a detailed evaluation and medical decision making, orders antibiotics, and develops a treatment plan. This is no longer routine recovery.

Billable? Often yes. Modifier 24 may apply if the payer determines the service is unrelated to routine post-operative care and documentation supports a significant evaluation. Documentation is critical.

Scenario #3: New Medical Problem

A patient undergoes hernia repair. Three weeks later, the patient presents with new-onset abdominal pain and suspected diverticulitis. The surgeon evaluates and manages the new condition.

Billable? Yes. This is unrelated to the surgical recovery, and Modifier 24 would typically be appropriate.

Understanding Modifier 24

Modifier 24 is often the key to post-operative billing. It indicates an "unrelated Evaluation and Management service by the same physician during a postoperative period."

The modifier tells the payer: "This visit occurred during the global period, but it is unrelated to the surgery." Without Modifier 24, many claims will deny automatically.

Scenario #4: New Injury

An orthopedic surgeon performs an ORIF of a wrist fracture. Four weeks later, the patient falls and injures their shoulder. The surgeon evaluates the shoulder.

Billable? Yes. The shoulder injury is unrelated to the wrist surgery, so Modifier 24 is generally appropriate.

Scenario #5: Decision for Additional Surgery

A patient undergoes colectomy. During the global period, a separate issue develops requiring another major surgical procedure. The surgeon performs a complete evaluation and determines surgery is necessary. Depending on the circumstances, Modifier 24, Modifier 57, or Modifier 79 may become relevant. These situations require careful review.

What About Complications?

This is where many practices lose revenue. Not every complication is automatically billable. The question remains: is the service part of managing the normal surgical outcome, or is it a separate, significant problem requiring substantial evaluation and management?

Complications often require detailed documentation to justify separate reimbursement, and payers frequently review these claims closely.

Common Documentation Mistakes

"Patient Here for Follow-Up"

This documentation alone generally supports a routine post-op visit.

No Distinction Between Surgical Recovery and New Problem

The medical record should clearly identify:

• Why the patient returned
• Whether the issue is related or unrelated
• What medical decision making occurred
• Why the encounter exceeded routine post-operative care

If the note reads like a standard follow-up, the payer will likely consider it part of the global package.

Questions Every Surgeon Should Ask

Before billing an E/M service during the global period, ask:

• Is this routine recovery? If yes, it is likely included.
• Is this a new condition? If yes, it may be billable.
• Is significant medical decision making occurring? If yes, further review is warranted.
• Is the condition unrelated to the surgery? Modifier 24 may apply.
• Does documentation clearly support the distinction? If not, the claim is vulnerable to denial.

The Hidden Revenue Opportunity

Many surgical groups underbill post-operative E/M services because they assume everything is included in the global package. The opposite can also occur — some practices bill every follow-up encounter and create compliance risk.

The goal is finding the balance. Understanding what is truly included — and what is separately reportable — can improve revenue integrity while reducing audit exposure.

The Bottom Line

Not every encounter during a global period is included in the surgical payment. Routine recovery services are bundled into the global package. However, new conditions, unrelated problems, significant complications, and certain medically necessary evaluations may qualify for separate reimbursement when properly documented and coded.

The key isn't whether the patient is post-operative. The key is determining why the patient is being seen.

Because in surgical billing, the most important question isn't "Is the patient in a global period?" It's "Is this encounter part of normal recovery — or is it something more?"