MA01MA-series (Medicare alerts & claim-level)Alerts & Appeals
MA01: Alert: appeal rights — 120 days (Medicare redetermination)
Informational alert stating your right to appeal the determination within 120 days — the standard Medicare redetermination notice.
What to do about it
Not a denial by itself — read the companion codes for why. If appealing, file the redetermination within 120 days with supporting documentation.
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