Healthcare Error Code
Healthcare Insurance / Medical Billing
Common CMS / Medicare Issues
M59 | Incomplete claim
Industry
Healthcare
Canonical
/healthcare/error-codes/m59/
Last Updated
Feb 25, 2026
Summary
This code indicates that the Medicare claim was incomplete and could not be fully processed.
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What This Code Means
M59 is applied when required claim components are missing or incomplete. CMS cannot adjudicate incomplete claims. This is an administrative issue rather than a coverage decision. Once the missing elements are addressed, the claim may be eligible for reprocessing.
Where Users Usually See This Code
- Medicare remittance advice
- Claim rejection notices
- CMS claim processing reports
Why This Code Appears
- Missing claim data elements
- Incomplete service or provider details
- Submission errors
What Typically Happens Next
- Claim processing stops
- Reprocessing may be required
- Payment is delayed
What This Code Is Not
- It is not a non-covered service
- It is not patient responsibility
- It is not a contractual adjustment
Troubleshooting Checklist
- □ Review claim completeness
- □ Verify required data fields
- □ Monitor resubmission guidelines
Notes And Edge Cases
Incomplete claims are common during system transitions. CMS-specific rules affect completeness criteria.
Related Codes
8 links
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