Guide 3: Types of Coding Errors and How BillCare Prevents Them
Coding errors are one of the most frequent causes of unexpected charges, denied claims, and billing delays. They don't always mean someone did something wrong — many are honest mistakes — but they can cost you real money. BillCare automatically performs this inspection, but it is important to understand the behind the scenes process. Here's what to look for:
The Most Common Errors:
Error | What It Means | Why It Matters |
|---|---|---|
Incorrect code | The code used doesn't match the service or diagnosis you actually received | You may be billed for something you didn't get, or a valid claim gets denied |
Missing code or modifier | A code or detail was left off the claim entirely | Your insurer may underpay or deny the claim, leaving you with a larger balance |
Duplicate billing | The same service was billed twice | You could be charged twice for a single visit or procedure |
Upcoding | A more complex (and expensive) service was billed than what was provided | You're overcharged; providers can face fraud investigations |
Downcoding | A less complex service was billed than what was provided | Your insurer underpays; you may be billed for the difference |
Unbundling | Services that should be billed together as one code are billed separately | Inflates your bill; flags the claim as potentially non-compliant |
Data mismatches | Wrong date, provider name, or other administrative detail | Causes automatic denials unrelated to the care itself |
What You Can Do:
If something on your bill doesn't look right, start here:
1. Request an itemized bill. This gives you the specific codes used. Cross-reference them with your EOB to see if they match.
2. Look up the codes. Use findacode.com to verify that each code reflects what actually happened at your visit.
3. Compare your bill to your EOB. If the codes differ between the two documents, that's a red flag worth investigating.
4. Contact your provider's billing department. Many errors are corrected quickly once flagged — a simple call can resolve a lot.
5. If the error isn't corrected, escalate. You can file a dispute with your insurer or contact BillCare for help identifying and resolving the issue.
A note on upcoding: If you're ever billed for a service that feels more intensive than what you actually received — for example, a routine check-up coded as a complex consultation — that's worth questioning. It's one of the more consequential errors because it directly inflates what you owe.
BillCare does this for you, but it is important to understand what is going on and what you can also do to remain in control of your finances.
Legal Disclaimer: The information provided in this guide is for general educational purposes only and should not be considered as legal, financial, or medical advice. While we strive to keep information accurate and up to date, healthcare billing practices and regulations may vary by location and provider. Always consult with your healthcare provider, insurance company, or a qualified professional for specific guidance about your medical bills. BillCare is not responsible for any decisions made based on this information.