M153 | Invalid billing

What This Code Means

Where Users Usually See This Code

• Medicare remittance advice
• Claim rejection notices
• Billing validation reports

Why This Code Appears

• Invalid billing data submitted
• Formatting or coding issues
• CMS billing rules enforced

What Typically Happens Next

• Claim is denied or adjusted
• Reprocessing may be required
• Payment is delayed

What This Code Is Not

• It is not a non-covered service decision
• It is not patient responsibility
• It is not a contractual adjustment

Troubleshooting Checklist

• □ Review CMS billing guidelines
• □ Confirm billing data accuracy
• □ Monitor claim status

Notes And Edge Cases