CO-238: Claim Spans Ineligible Coverage Period
Claim spans eligible and ineligible periods of coverage. This is the reduction for the ineligible period. The claim includes dates of service when the patient was not covered.
Why Claims Get Denied with CO-238
Denial code CO-238 is triggered when claim spans eligible and ineligible periods of coverage. this is the reduction for the ineligible period. the claim includes dates of service when the patient was not covered. Understanding the root causes helps prevent future denials and strengthens your appeal when one occurs.
Service dates span the patient's coverage start or end date
Inpatient stay crosses the patient's eligibility boundary
Patient's coverage lapsed mid-treatment
Retroactive termination of coverage affects part of the claim period
How to Appeal CO-238
Verify the patient's exact coverage dates. If the claim dates are correct, split the claim to separate eligible and ineligible dates and resubmit the eligible portion. If the patient had continuous coverage, provide documentation proving eligibility for the full claim period.
Documentation Required for Appeal
A successful appeal of CO-238 requires thorough documentation. Gather these items before drafting your appeal letter:
Patient's exact coverage start and end dates
Split claim for the eligible period only
Proof of continuous coverage (if disputing the gap)
Enrollment documentation for the full claim period
How to Prevent CO-238 Denials
Verify coverage dates for inpatient stays and services spanning multiple days. Check eligibility at both the start and end of multi-day services. Monitor for retroactive coverage changes during long treatment courses.
Stop Fighting CO-238 Denials Manually
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