Emergency Room Bill Upcoding & Overcharge Checklist

The Manual Audit

What Upcoding Is — and Why You Should Check

Every emergency room visit gets a code that reflects how complex the visit was. Upcoding means the bill carries a higher-intensity code than the visit supports — and since the code drives the price, the error comes straight out of your pocket or your insurance benefits. Duplicate charges and phantom line items do the same thing with less subtlety.

This checklist walks the audit by hand, on paper, at your kitchen table. Prefer a guided version? The firm's interactive ER bill error check asks the same questions and does the sorting for you.

One Minnesota-specific reason to care: after a crash, ER bills are usually paid first from your own no-fault medical benefits, and those benefits have limits. Inflated charges burn through them faster.

Step 1

Get the Right Documents

You can't audit a summary. Ask the hospital's billing office for the itemized bill — the version that lists every charge with its code. You're allowed to ask for it.

• ✓ The itemized bill with billing codes — not the one-line summary statement
• ✓ Your insurer's explanation of benefits (EOB) for the visit, if you're insured
• ✓ Your discharge paperwork — it describes what was actually done
• ✓ Account number, date of service, and the billing office's phone number, noted at the top of your working copy

Step 2

Find the E/M Level and Test It Against Your Visit

Somewhere on the itemized bill is an evaluation-and-management (E/M) code between 99281 and 99285. Under the American Medical Association's CPT framework (revised in 2023), the level is set by the complexity of the medical decision making the visit required — not by how long you waited or how busy the ER was.

• ✓ 99281 — minimal visit that may not require the presence of a physician or other qualified health care professional
• ✓ 99282 — straightforward medical decision making
• ✓ 99283 — low-level medical decision making
• ✓ 99284 — moderate medical decision making
• ✓ 99285 — high-level medical decision making

Now compare the code to the visit you remember. One simple complaint, a quick exam, no imaging, home in an hour — that reads low. Multiple tests, several problems worked up, specialists consulted, admission discussed — that reads high. A 99285 on a visit that looked and felt minor is worth a question.

Be fair to the gray zone: coding involves judgment, and a higher code isn't automatically wrong — the question is whether the medical record supports it. These descriptions are summaries; the AMA maintains the codes and they can change. When in doubt, ask the billing office to explain what justified the level.

Step 3

Scan for the Common Overcharge Patterns

Read every line of the itemized bill against your memory of the visit and your discharge paperwork. These are the patterns that show up again and again.

• ✓ Duplicates — the same test, medication, or supply billed twice when it happened once
• ✓ Services you never received — a treatment, test, or consult you don't recognize
• ✓ Two E/M codes for one visit — one visit, one visit-level code
• ✓ Facility and physician bills that don't match — hospitals and ER doctors often bill separately; if both arrive, check that they describe the same visit
• ✓ Trauma or activation fees — if a trauma-team activation fee appears and no trauma team met you, ask what triggered it
• ✓ Unbundling — items billed separately that are normally included in a single procedure charge; ask the billing office to justify separate lines
• ✓ Wrong basics — wrong date of service, wrong patient details, someone else's charges on your account

Step 4

Dispute What Doesn't Match

Found something? Work the dispute in order, and keep a log of every call — date, name of the person you spoke with, and what was said.

• ✓ Call the provider's billing office. Identify the specific lines you're questioning and ask for a coding review. Request the outcome in writing.
• ✓ If you're insured, ask your insurer to re-review the claim for the same lines — insurers have their own audit channels
• ✓ Ask whether the account can be placed on hold while the review is pending, so it doesn't move toward collections mid-dispute
• ✓ If the dispute stalls, the Minnesota Attorney General's Office takes consumer assistance requests about medical billing: file the Consumer Assistance Request Form online at ag.state.mn.us, or call (651) 296-3353 (Twin Cities) or (800) 657-3787 (outside the metro). The office also publishes plain-language medical-billing guidance.
• ✓ Keep every letter, EOB, and revised bill — the paper trail is the dispute

If the ER visit came from a crash or other injury someone else caused, those bills are part of your claim — and their accuracy matters to it. That's a conversation we can have in a free consultation.