MA97MA-series (Medicare alerts & claim-level)Provider Identifiers
MA97: Demo/clinical trial number missing or invalid
Claims tied to Medicare demonstrations or clinical trials need the contract or registry number, and it's missing or wrong.
Commonly appears with these denial codes
The denial code gives the category; MA97 pinpoints the specific problem. Read them together before touching the claim.
What to do about it
Add the 8-digit clinical trial registry number (or demo contract number) with the correct qualifier and condition codes, then resubmit.
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