How to Appeal CO-140 Denial: Patient not eligible on date of service
The patient was not eligible for benefits under this plan on the date of service. This guide explains what it means, why it happens, and exactly how to build a winning appeal.
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What Does CO-140 Mean?
The patient was not eligible for benefits under this plan on the date of service.
Commonly seen in:
Step-by-Step Appeal Guide for CO-140
- 1
Verify the patient's coverage status on the exact date of service via the payer portal
- 2
Obtain an Explanation of Benefits (EOB) showing the specific eligibility issue
- 3
Contact the employer/group plan administrator to confirm enrollment records
- 4
If the issue is COB-related, obtain a denial from the alleged primary payer
- 5
Resubmit with corrected eligibility information and supporting documentation
Counter-Arguments to Use in Your Appeal
These are the strongest arguments medical billing professionals use to overturn CO-140 denials.
Verify the eligibility verification you performed on or before the date of service
Provide the payer portal confirmation of eligibility from the date of service
If the payer confirmed eligibility and later denied, cite the eligibility verification as estoppel
Request the effective and termination dates from the payer
Regulations and Guidelines to Cite
Citing specific regulations strengthens your appeal and demonstrates you know your rights.
Expert Tip for CO-140 Appeals
Payers that confirmed eligibility before the service generally cannot deny on eligibility grounds. Keep your eligibility verification reports.
Frequently Asked Questions
What is a CO-140 denial code?
The patient was not eligible for benefits under this plan on the date of service.
Can I appeal a CO-140 denial?
Yes. All insurance denials are appealable. Follow the step-by-step guide above and submit your appeal before the payer's deadline, typically 180 days from the denial date.
What documentation do I need to appeal CO-140?
For a CO-140 denial, you typically need: the original denial letter/EOB, clinical documentation supporting the service, any prior authorization records, and a cover letter citing the relevant regulations listed above. The specific documents depend on why the denial was issued.
How long does a CO-140 appeal take?
Most payers are required to process standard appeals within 30–60 days. Expedited appeals (for urgent care) must be decided within 72 hours. Under ERISA, group health plans must provide an appeal decision within 60 days for pre-service and 60 days for post-service claims.
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