How to understand a medical bill and spot errors
Medical bills are full of codes and abbreviations. Here’s how to make sense of them and check for mistakes before you pay.
How medical billing works depends a lot on your country and insurance. This guide focuses on what most bills have in common.
Ask for an itemized bill
A summary bill might just show one total. An itemized bill lists each service, test, medicine and supply with its own price and date. You usually have the right to ask for it, and it is the best way to find mistakes.
Advertisement
The main parts of a medical bill
- Date of service: when you were treated. Check it matches when you were actually there.
- Description and codes: each service often has a code. You can ask the billing office what any code means.
- Charges: the full price before insurance.
- Insurance paid or adjusted: what your insurer paid, and discounts agreed between the insurer and the provider.
- Patient responsibility or amount due: what they say you owe.
Compare it with your insurance statement
If you have insurance, your insurer may send a separate statement (in the United States this is often called an Explanation of Benefits, or EOB). It shows what was billed, what the insurer paid and what you should owe. The amount you owe on the bill should match it. If it doesn’t, ask both the provider and the insurer why.
Common billing mistakes
- Being charged twice for the same test or medicine.
- Charges for services you didn’t receive.
- Wrong dates, or a longer stay than you actually had.
- A bill sent before insurance has been processed.
- Your insurance details entered wrongly, so the claim was denied.
If something looks wrong
- Call the billing office, explain which line you are questioning, and ask them to check it.
- Ask whether the bill can be put on hold while it’s reviewed.
- If the bill is correct but too high to pay at once, ask about payment plans or financial assistance programs. Many hospitals have them.
Tip: Don’t pay a large medical bill the day it arrives. Take a few days to check it against your insurance statement first.
Check your own document
Snap or paste your bill or letter and get it explained in plain words, with red flags and next steps.
Explain my document