8.3 CMS Notices: IM, MOON, NOMNC, and ABN

8.3 CMS Notices: IM, MOON, NOMNC, and ABN

Quick Answer: Use the IM for hospital inpatient discharge appeal rights, the MOON for prolonged observation outpatient status, the NOMNC before ending covered SNF/HHA/CORF/hospice services, and the ABN when Medicare is expected to deny payment and the beneficiary may be financially liable. Timing and appeal paths differ — memorize purpose + clock.

Blueprint 2E and specialty simulation 1H both expect fluency with CMS Beneficiary Notices Initiative (BNI) forms. Wrong notice = wrong rights message. This section focuses on four high-yield hospital/post-acute notices.

Notice Map at a Glance

Important Message from Medicare (IM)

The Important Message from Medicare informs inpatient Medicare beneficiaries (Original Medicare and Medicare Advantage) of their rights, including the right to an expedited Quality Improvement Organization (QIO) review of a discharge decision.

Delivery rules case managers must know:

1. Issue the standardized IM (CMS-R-193) at or near admission, no later than 2 calendar days after admission, and obtain signature (or document refusal).
2. Give the beneficiary the signed notice; retain a copy.
3. If discharge will occur more than 2 days after the initial IM, deliver a follow-up copy of the signed IM as far in advance as possible, not more than 2 calendar days before discharge. CMS manual guidance also addresses delivering the follow-up as late as about four hours prior to discharge when discharge timing is uncertain — still as early as feasible once discharge is anticipated.
4. If the initial IM was delivered within 2 calendar days of discharge, a separate follow-up copy is not required.
5. If the beneficiary requests a QIO review, a Detailed Notice of Discharge is issued explaining why discharge is appropriate.

CM role: Confirm IM workflows with admitting/registration and care management; do not discharge a Medicare inpatient without verifying notice compliance; explain that timely QIO contact can affect coverage continuation during review per applicable rules; never imply that appealing is “not allowed.”

Medicare Outpatient Observation Notice (MOON)

The MOON implements the NOTICE Act. Hospitals and CAHs must notify Medicare beneficiaries (including MA enrollees) who receive observation services as outpatients for more than 24 hours that they are outpatients, not inpatients, and explain implications (including that observation time does not count as inpatient days toward the 3-day qualifying stay for SNF in the usual Part A pathway).

Timing:

• Trigger: observation as outpatient for more than 24 hours
• Deadline: deliver no later than 36 hours after observation services begin
• Deliver sooner if the patient will be transferred, discharged, or admitted before the 36-hour mark and notice is still required under the instructions
• Hospitals may deliver before 24 hours (helpful where state law requires earlier notice)

Delivery standards: Use OMB-approved CMS-10611; complete patient-specific blanks (name, patient number, reason patient is outpatient); provide written + oral explanation; obtain signature/acknowledgement per instructions; staff must be available for questions.

CM role: Status clarity is a CM competency. If the physician orders observation, ensure MOON processes are triggered. Do not tell an observation patient they are “admitted” in the inpatient sense. When SNF placement is desired, explain why observation days generally do not create a qualifying inpatient stay.

Notice of Medicare Non-Coverage (NOMNC)

The NOMNC warns that Medicare-covered services in skilled nursing, home health, comprehensive outpatient rehabilitation facility (CORF), or hospice settings will end, and that the beneficiary may request an expedited determination from the QIO.

Timing: Deliver at least two calendar days before covered services end (not a strict 48-hour clock). If care is not daily, deliver by the second-to-last visit. Short expected stays may allow delivery when services begin. Do not routinely hand NOMNCs at admission for long stays divorced from an actual end-of-coverage decision.

Appeal path: Beneficiary (or representative) contacts the QIO by the deadline on the notice (commonly by noon of the day before services end, per notice instructions). A Detailed Explanation of Non-Coverage (DENC) follows when review is requested.

CM role: Hospital CMs often coordinate with SNFs/HHAs on discharge timing. Know that ending skilled coverage is a NOMNC event — not an IM event. Help patients understand QIO rights without practicing law; involve the provider responsible for NOMNC delivery.

Advance Beneficiary Notice of Noncoverage (ABN)

The ABN (CMS-R-131) is used when a provider believes Medicare will not pay for an item or service (commonly as not reasonable and necessary) and wants to shift financial liability to the beneficiary if Medicare denies. Effective delivery means the correct form, completed blanks, explanation of options, and delivery far enough in advance for the beneficiary to make an informed choice — ideally in person.

ABN is not a substitute for IM, MOON, or NOMNC. A patient can receive an IM as an inpatient and separately need an ABN for a specific noncovered outpatient service on another encounter. Hospital-Issued Notices of Non-Coverage (HINN) are related but distinct tools for certain hospital non-coverage situations — do not conflate HINN with ABN on exam items unless the vignette specifies.

Matching Notice to Scenario (Exam Drill)

Simulation 1H Angle

In specialty simulations, notice items often hide inside discharge planning dialogues. Strong performances:

• Identify inpatient vs observation before choosing IM vs MOON
• Mention QIO appeal rights with the correct notice
• Avoid inventing fake deadlines (e.g., “MOON within 2 hours of triage”)
• Coordinate with the team member accountable for delivery rather than assuming verbal education alone meets CMS form requirements

ACM Practice Bottom Line

Memorize four clocks and four purposes: IM = inpatient discharge appeal rights; MOON = observation outpatient explanation; NOMNC = ending post-acute/hospice covered services; ABN = expected Medicare nonpayment / beneficiary liability. Timing errors and notice mix-ups are classic ACM traps — slow down and match status to form.