Medicare Change of Status Notice (MCSN): what it means and what to do

Says the hospital reclassified the patient from inpatient to observation, and gives the right to a fast QIO appeal.

The Medicare Change of Status Notice tells you a hospital reclassified your parent from inpatient to observation — and gives you a real, fast right to have a QIO review whether the original inpatient order was appropriate under the two-midnight rule.

Request review before you're released from the hospital.

This right exists because of a real federal class action — Alexander v. Azar, affirmed as Barrows v. Becerra — that required CMS to give beneficiaries reclassified this way a genuine appeal, not just a bill.ruleCMS notice on Alexander v. Azar / Barrows v. Becerra

You can still request review any time during or after the stay — the QIO decides within 2 days, but there's no protection against being billed while it decides. For a stay before Feb 14, 2025, see the retrospective appeal instead.

Call the QIO before release. Say: "I am requesting an expedited appeal of the change in my status under 42 CFR 405.1211." If your parent never got an MCSN, say: "Please give me the Medicare Change of Status Notice." Give the QIO the hospital's name and the date of the status change.

Note the deadline. Request review before you're released from the hospital.

Know what the hospital owes. The hospital must send your parent's records to the QIO by noon the next calendar day — if the QIO says it's still waiting, calling the hospital's case-management office directly can move it along.

Know what winning means. The hospital must send your records to the QIO by noon the next calendar day. The QIO decides within 1 calendar day of receiving them. Winning restores the days as inpatient — which can qualify your parent for nursing-home coverage afterward.

Winning this appeal doesn't just change how the hospital stay is billed — it can restore the days as inpatient, which is what makes a nursing-home stay afterward eligible for Medicare's own skilled nursing facility coverage under the 3-day rule.rule42 CFR 409.30