What Medicare Pays vs. What You Might Be Charged

Category	Amount
Medicare Allowed Rate What Medicare approves for this service	$47.38
Typical Billed Amount What providers commonly charge	$70 – $250
Potential Markup How much more you might pay vs. Medicare rate	428% above Medicare

Why the difference? Providers set their own prices. Without insurance, you may be billed the full amount. Even with insurance, your co-pay is often based on the provider's charge — not the Medicare rate.

What CPT 99231 Means and When It's Used

CPT code 99231 represents a "subsequent hospital inpatient visit, low complexity" - but in plain English, this means your doctor stopped by your hospital room for a routine follow-up visit. This isn't your first visit after being admitted, but rather one of the daily check-ins that happen during your hospital stay.

Doctors use this code when your condition is stable and doesn't require complex decision-making. For example, if you're recovering well from surgery and your doctor just needs to check your progress, review your medications, and make sure you're healing properly, they'll likely bill using CPT 99231.

This code is different from more complex visit codes because it represents straightforward care. Your doctor might spend 15-25 minutes with you, checking your vital signs, asking how you're feeling, and making minor adjustments to your treatment plan.

What to Expect on Your Hospital Bill

When you see CPT 99231 on your hospital bill, you're being charged for your doctor's time and expertise during a routine follow-up visit. The Medicare reimbursement rate for this code is $47.38, which gives you a baseline for what this service costs.

However, hospitals typically charge more than the Medicare rate. You can expect to see charges ranging from $70 to $250 for CPT 99231, depending on your hospital and location. The actual amount you pay will depend on your insurance coverage, deductible, and copay requirements.

If you have multiple follow-up visits during your hospital stay, you may see this code appear several times on your bill - once for each day your doctor visited you for routine care. This is completely normal for longer hospital stays.

How to Verify Your Billing is Correct

To check if your CPT 99231 charges are accurate, start by counting how many routine follow-up visits you remember having with your doctor during your hospital stay. Each visit should correspond to one charge with this code. Keep in mind that different doctors (like your primary doctor, specialists, or residents) might each bill separately for their visits.

If the charges seem too high or you see more instances of this code than you remember having visits, don't hesitate to ask questions. Contact your hospital's billing department and ask them to explain each CPT 99231 charge - they should be able to tell you the date of each visit and which doctor provided the service.

If you believe you've been incorrectly billed, gather any notes you have about your hospital stay, including dates and times of doctor visits. Most billing errors can be resolved by speaking directly with the billing department, and hospitals are generally willing to review and correct legitimate mistakes.

Codes Often Confused With CPT 99231

CPT 99232

Frequently Asked Questions

Why am I being charged multiple times for CPT 99231?

You'll see CPT 99231 charged once for each routine follow-up visit during your hospital stay. If you were in the hospital for several days, it's normal to have multiple charges for daily doctor check-ins.

What's the difference between CPT 99231 and 99232?

CPT 99231 is for low-complexity follow-up visits, while 99232 is for moderate complexity visits. If your condition required more detailed evaluation or complex medical decision-making, your doctor would use 99232 instead.

How much should I expect to pay for CPT 99231?

Hospital charges typically range from $70 to $250 for CPT 99231, though Medicare pays $47.38. Your actual cost depends on your insurance coverage, deductible, and copay requirements.