CO-52 | Missing provider signature

Industry

Healthcare

Canonical

/insurance/healthcare/error-codes/co-52/

Last Updated

Feb 25, 2026

Summary

This code indicates that a required provider signature was missing from the claim or supporting documentation.

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Hub

Guides

The Complete Insurance Claim Denial Codes Directory (2026 Edition)

Related Codes

What This Code Means

CO-52 is applied when payer rules require a provider signature and it is not present or not validated. Signatures confirm authorization and accountability. This is an administrative compliance issue rather than a coverage determination. The claim may be eligible for reprocessing once signature requirements are met.

Where Users Usually See This Code

Remittance advice
Documentation request notices
Claim rejection reports

Why This Code Appears

Required signature not submitted
Signature not recognized by payer systems
Documentation incomplete

What Typically Happens Next

Claim processing is delayed or denied
Reprocessing may be required
Payment is not finalized

What This Code Is Not

It is not a service denial
It is not patient responsibility
It is not a contractual adjustment

Troubleshooting Checklist

□ Review signature requirements
□ Confirm documentation completeness
□ Monitor claim status

Notes And Edge Cases

Electronic signature rules vary by payer. Some services have stricter signature requirements.

Related Codes

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