Medical claim denials can result from problems before submission, during claim processing, or after a payer reviews the claim. The exact denial code and payer instructions should guide the response.
1. Eligibility and Coverage Issues
Claims may be denied when coverage is inactive, benefits do not apply, the payer information is incorrect, or another insurer is responsible for the claim. Review eligibility data, member information, coordination of benefits, and the date of service.
2. Authorization and Referral Problems
Some services require prior authorization, referrals, or other payer-specific approvals. Check whether the required approval was obtained, whether the authorization matches the service, and whether the claim contains the required information.
3. Coding and Modifier Issues
Incorrect CPT, ICD-10, HCPCS, modifier, diagnosis linkage, or other coding information can cause a claim to be rejected or denied. Coding review should consider the documentation and applicable payer requirements.
4. Medical Necessity
A payer may determine that the submitted service does not meet its medical necessity criteria. Review the payer policy, diagnosis information, documentation, and appeal requirements before deciding on the next action.
5. Timely Filing
Claims submitted after a payer’s filing deadline can be denied. Track payer-specific filing limits and retain submission records that may be relevant to a reconsideration or appeal.
6. Duplicate Claims
Duplicate claim denials can occur when a payer identifies a claim as previously submitted or processed. Review claim history, corrected claim indicators, and the reason the second submission was made.
7. Documentation Issues
Some claims require supporting documentation or specific information. Identify what the payer requested, verify that the documentation supports the billed service, and follow the payer’s submission instructions.
Denial Review Checklist
Check
Question
Eligibility
Was coverage active on the date of service?
Payer
Was the claim sent to the correct payer?
Authorization
Was required authorization obtained?
Coding
Are CPT, ICD-10, HCPCS, and modifiers supported?
Documentation
Does the record support the billed service?
Timely filing
Was the claim submitted within the payer deadline?
Duplicate
Was the claim previously submitted or processed?
Appeal
What correction or appeal does the payer allow?
Turn Denial Reasons Into Prevention Actions
Track denial categories by payer, provider, location, service, and workflow. Recurring patterns can help the practice identify where process changes may reduce repeat billing problems.
Denial causes vary by payer, specialty, service, and practice workflow. Use the payer’s denial code and explanation to identify the specific cause rather than assuming one universal reason.
How should a denied claim be reviewed?
Start with the denial reason, then check eligibility, payer information, authorization, coding, documentation, timely filing, and the payer’s correction or appeal process.
Why should denial reasons be tracked?
Tracking creates visibility into recurring problems and can help a practice prioritize process improvements.
