📋 Free resource
Free Hospital Bill Checklist
The 12-point checklist patient advocates use to catch billing errors — before paying a single dollar. Used alongside your itemized bill, this checklist can save you hundreds.
- 12-point billing error checklist
- CPT code red flag reference list
- Follow-up call tracker
- Dispute escalation guide
- Interactive — use it directly on this page
✓ PDF checklist sent — check your inbox. You can also use the interactive version below right now.
Free. No spam. Unsubscribe anytime.
💡 How to use this page: Work through the interactive checklist below alongside your itemized bill. Check off each item as you complete it. The checklist saves your progress in this browser session. Use the print button to take a paper copy to the hospital if needed.
Interactive checklist
The 12-Point Hospital Bill Checklist
Work through all four sections in order. Section 1 covers documents to gather before you review anything. Sections 2–4 cover what to look for once you have your itemized bill in hand.
Hospital Bill Checklist
The Patient Insider — thepatientinsider.com
0 / 12
items completed
1
Documents to gather first — before reviewing any charges
Critical — do first
Requested a fully itemized bill with all CPT codes from the billing department
Call and ask specifically for a "fully itemized bill with CPT codes and charge descriptions" — not just the summary bill they send automatically. Use our free letter generator to request it in writing.
Downloaded Explanation of Benefits (EOB) from insurance company
Log into your insurer's online portal or call member services. The EOB shows what your insurer was billed, what they agreed to pay, and what they say you owe. It must match your hospital bill.
Requested medical records for the same visit from Health Information Management
Under HIPAA you have the legal right to these records. Contact the HIM or Medical Records department — separate from billing. Any charge on your bill not documented here is a red flag.
2
Checking the bill itself — line by line
High priority
Checked for duplicate charges — same service billed more than once
Look for the same CPT code appearing more than once on the same date with no clear reason. Duplicate billing is one of the most common errors and one of the easiest to spot.
Verified room and board days match your actual length of stay
Count the exact number of nights you were inpatient and compare to the number of room days billed. Even one extra day can cost hundreds of dollars. Discharge day is typically not billed as a full day.
Looked up any unfamiliar CPT codes using Google
Every CPT code is public record. Type "CPT code XXXXX" into Google to see exactly what service it represents. Verify that the service described matches what you actually received during your visit.
Checked for charges for services not received or not documented in medical records
Cross-reference each line item against your medical records. If a service is billed but not documented in your records — it should not be on your bill. Flag every discrepancy.
3
Advanced billing error checks
High priority
Checked for upcoding — billed for a more expensive service than performed
Upcoding means billing a higher-level CPT code than the service actually delivered. For example, billing for a complex consultation when a brief one occurred. Compare the code description to what your doctor's notes say happened.
Checked for unbundling — procedures that should be one charge billed separately
Some procedures have bundled CPT codes covering all components. Unbundling bills each component separately at a higher total cost. If multiple procedure codes appear for what should be a single service, question it.
Verified all physician charges separately billed are for doctors who actually treated you
Surgeons, anesthesiologists, and consulting specialists often bill separately from the hospital. Confirm each one appears in your medical records as having actually participated in your care.
4
Insurance and final steps
Complete last
Compared hospital bill totals to EOB — both must match
Your hospital bill and your EOB should reflect the same charges. Discrepancies between what the hospital billed your insurer and what the insurer says was billed are a sign of a claim error that needs correction.
Asked about financial assistance programs before making any payment
Every nonprofit hospital is legally required to have a charity care or financial assistance program. Income thresholds are often higher than expected — up to 400% of the federal poverty level. Always ask before paying.
CPT code red flags
Common CPT Code Categories to Watch Closely
These are the billing categories where errors, upcoding, and duplicate charges occur most frequently. Pay extra attention to any charges in these categories on your itemized bill.
| Charge category | What to look for | Risk level |
|---|---|---|
| Room and board (99xxx) | Number of days billed vs actual nights stayed. Discharge day should not be a full day charge. | High risk |
| Evaluation and management (99201–99499) | Level of service billed (e.g. complex vs routine). Verify the level matches what your doctor's notes document. | High risk |
| Operating room / procedure room fees | Time billed in the OR vs time documented in surgical notes. Overruns are frequently charged. | High risk |
| Pharmacy and medications | Vague line items like "pharmacy" or "medications." Request a full breakdown of every drug, dose, and administration fee. | High risk |
| Medical supplies and equipment | "Medical supplies" catch-all charges. Ask for itemization of every supply. Charges for basic items like gloves or bandages are frequently inflated. | High risk |
| Laboratory tests (80000–89999) | Duplicate lab orders and tests that were ordered but cancelled. Each test should appear once and be documented as performed. | Medium risk |
| Radiology and imaging (70000–79999) | Professional fee (radiologist reading) and technical fee (machine/facility) are often billed separately. Confirm both are legitimate. | Medium risk |
| Anesthesia (00100–01999) | Time-based billing — confirm the duration matches surgical notes. Anesthesiologists often bill separately from the hospital. | Medium risk |
| Facility / observation fees | Charged for using the facility even when admitted. Some clinics add facility fees on top of provider fees. Confirm these are legitimate and within your plan coverage. | Medium risk |
How to look up any CPT code
Every CPT code on your bill is public record. To look up any code, simply Google "CPT code XXXXX" (replacing XXXXX with the 5-digit number on your bill). You will see exactly what medical service that code is supposed to represent. If the description does not match what happened during your visit — flag it.
📞 Follow-Up Call Tracker
Log every call you make about your bill. Date, who you spoke to, what they said, and what they promised. This log protects you if the dispute escalates.
| Date | Department / person | Rep name | What was discussed | Status |
|---|---|---|---|---|
Get the PDF Version
Want a printable PDF version of this checklist to use at the hospital or keep in your files? Enter your email and we will send it instantly.
✓ PDF sent — check your inbox. If you found errors on your bill, use the full dispute guide to fight back.
Free. No spam. Unsubscribe anytime.