Covered Services Billed as Non-Covered

When Insurance Should Have Paid

Sometimes services that should be covered are incorrectly processed as non-covered, leaving you with a bill that insurance should have paid.

Common Reasons for Incorrect Denials

Coding Issues

• Wrong diagnosis code
• Missing modifier
• Procedure code doesn't match diagnosis
• Coding error makes service appear non-covered

Administrative Errors

• Wrong insurance ID number
• Incorrect subscriber information
• Claim filed to wrong insurance
• Timely filing deadline missed

Authorization Problems

• Pre-authorization not on file (but was obtained)
• Authorization number not included on claim
• Wrong procedure code on authorization
• Authorization expired

Processing Errors

• Service incorrectly classified
• Wrong plan applied
• Benefits not properly loaded
• Coordination of benefits issues

How to Identify the Problem

Review Your EOB

Look for explanation codes that indicate:

• "Not a covered benefit"
• "Pre-authorization required"
• "Not medically necessary"
• "Out-of-network"

Check Your Policy

Verify:

• Is this service explicitly covered?
• Are there any exclusions that might apply?
• What are the authorization requirements?
• What network restrictions exist?

Compare to Previous Claims

• Was this service covered before?
• Has anything changed in your coverage?
• Are similar services being covered?

Steps to Resolve

Step 1: Understand the Denial

• Call insurance to understand the reason
• Get the specific denial code
• Ask what would be needed for coverage

Step 2: Gather Documentation

Collect:

• Your insurance policy and benefits summary
• Prior authorization (if obtained)
• Medical records supporting necessity
• Previous claims for similar services

Step 3: Contact the Provider

Ask them to:

• Review the codes submitted
• Verify authorization was attached
• Check for any billing errors
• Resubmit with corrections if needed

Step 4: File an Appeal

If the issue isn't resolved, submit a formal appeal:

• Include all supporting documentation
• Cite policy language showing coverage
• Explain why the denial is incorrect
• Request expedited review if urgent

Pre-Authorization Issues

When Authorization Was Obtained

If you got pre-auth but it wasn't applied:

• Provide the authorization number
• Include the date authorization was given
• Attach any written authorization received
• Ask provider to resubmit with authorization

When Authorization Was Missed

Options if authorization wasn't obtained:

• Request retroactive authorization (sometimes possible)
• Appeal based on medical necessity
• Ask for exception based on circumstances
• Negotiate with provider on balance

Authorization Didn't Match Procedure

If the authorization was for something different:

• Determine if code change is appropriate
• Request updated authorization
• Appeal if procedure was medically necessary

Appeal Strategies

For Covered Services

Emphasize:

• Policy language showing coverage
• Previous approvals for similar services
• Why the service meets coverage criteria

For Medical Necessity

Provide:

• Doctor's letter explaining necessity
• Medical records supporting diagnosis
• Clinical guidelines supporting treatment
• Published medical literature if relevant

For Administrative Errors

Focus on:

• What went wrong in processing
• Correct information for reprocessing
• Timeline showing timely filing

Sample Appeal Language

"I am appealing the denial of [service] on [date] (Claim #[number]). The denial states [reason], but this is incorrect because [explanation]. Per my policy, [citation], this service is covered. I am requesting this claim be reprocessed for payment. Please find enclosed [supporting documentation]."

Escalation Options

If your appeal is denied:

1. External review - Independent third-party review
2. State insurance commissioner - File a complaint
3. Employer HR - If employer-sponsored plan
4. Legal options - For significant amounts

Don't accept a denial without investigating. Many denials are reversed when properly appealed.