Guide 6: Understanding Medical Claims Processing
When you visit a doctor, a lot happens behind the scenes before you receive a bill. This end-to-end process, from your first interaction with a provider to your final payment is called Revenue Cycle Management (RCM). Understanding it helps you spot where things can go wrong and why your bill sometimes looks different from what you expected.
The Claims Process: Step by Step
Step 1 — Before Your Visit: Verification Before care begins, your provider's office collects your insurance information and verifies your coverage. This includes:
Confirming your plan covers the type of care you're seeking
Checking whether prior authorization is required — some procedures need advance approval from your insurer before they'll cover it
Preparing a superbill: an internal summary of the services and codes that will be used to build your claim
Also at this stage, staff verify that your insurance is active, confirm which services are covered, and flag any out-of-network issues — before your visit begins. Errors here are one of the leading causes of unexpected bills.
If prior authorization is required but not obtained, your insurer can deny the claim entirely — leaving you responsible for the full cost. Always confirm authorization before a non-emergency procedure.
Step 2 — After Your Visit: Coding Your provider documents what happened during your visit and translates it into medical codes:
This is where many billing errors originate. See Guide 2 for a full breakdown of code types, and Guide 3 for common coding errors.
Step 3 — Claim Submission The coded, itemized claim is sent electronically to your insurer. A "clean claim" — one with no errors or missing information — processes faster and is far less likely to be denied. Every claim should include your patient details, provider information, the services rendered with their codes, the date of service, and total charges. Missing any of these can trigger an automatic rejection.
Step 4 — Adjudication Your insurer reviews the claim and decides:
Which services are covered under your plan
How much they will pay
Whether anything is denied or requires additional documentation
This is also when your deductible, coinsurance, and copay amounts are calculated. Once adjudication is complete, your insurer sends you an Explanation of Benefits (EOB). Review it carefully — it's your best tool for catching errors before you pay anything. See Guide 3 for a full explanation of EOBs.
Where Things Go Wrong:
Step 5 — Payment and Your Bill Your insurer pays the provider their share. If a balance remains, the provider bills you for your copay, deductible portion, coinsurance, or any non-covered services. The provider records this payment against your account — a step called payment posting. Errors here can make your balance appear higher than it actually is.
If the numbers don't match your EOB, investigate before you pay.
Step 6 — Denials, Appeals, and Resolution
Even when everything is done correctly, claims are sometimes denied or underpaid. This is more common than most patients realize — and a denial is not always the final word.
Common reasons a claim is denied at this stage:
Reason | What to Do |
|---|---|
Coding error | Ask your provider to review and resubmit with the correct code |
Missing documentation | Request that your provider submit supporting records |
Coverage dispute | File an appeal citing your plan's Summary of Benefits |
Underpayment | Contact your insurer and ask for a payment review |
You have the right to appeal any denial. Deadlines are typically 30–180 days depending on your insurer — don't wait.
Action Steps:
Before your visit — confirm whether your procedure requires prior authorization and that your provider is in-network.
After your visit — wait for your EOB before paying any bill. The EOB tells you what your insurer actually agreed to pay.
If something doesn't match — compare your EOB to your itemized bill line by line. A discrepancy at any stage of this process is worth questioning.
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.