MA61MA-series (Medicare alerts & claim-level)Missing Information
MA61: SSN missing or invalid
The social security number is missing or fails validation — mostly seen on Medicare-adjacent and workers' comp claims that still key off SSN.
Commonly appears with these denial codes
The denial code gives the category; MA61 pinpoints the specific problem. Read them together before touching the claim.
What to do about it
Confirm the SSN with the patient, or use the payer's current member identifier if SSN-based billing has been retired for that program.
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