CO-24 | Charges not covered

Industry

Insurance

Canonical

/insurance/healthcare/error-codes/co-24/

Last Updated

Feb 25, 2026

Summary

This code indicates that the charges are not covered under the terms of the patient’s insurance plan.

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Hub

Guides

The Complete Insurance Claim Denial Codes Directory (2026 Edition)

Related Codes

What This Code Means

CO-24 is applied when billed charges fall outside the coverage parameters defined by the payer. This determination is based on plan design and benefit rules. It does not reflect a billing error or missing information. The service may be valid but excluded from reimbursement. Coverage exclusions vary by policy and payer.

Where Users Usually See This Code

Explanation of Benefits documents
Remittance advice
Claim adjudication summaries

Why This Code Appears

Charges are excluded under plan benefits
Coverage limitations apply to the service
Policy restrictions are enforced

What Typically Happens Next

Payment for the charges is denied
Responsibility may transfer to the patient
The claim line is closed

What This Code Is Not

It is not a documentation error
It is not a processing delay
It is not a contractual adjustment

Troubleshooting Checklist

□ Review plan benefit exclusions
□ Confirm coverage criteria
□ Check for secondary coverage

Notes And Edge Cases

Some plans cover charges only under specific conditions. Secondary insurance may alter final responsibility.

Related Codes

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