Detailed Explanation of Non-Coverage: Your Right to Know Why Medicare Stopped Paying

What the DENC Is and Why You Need It

When a skilled nursing facility or home health agency tells your family that Medicare will no longer pay for your parent's care, the facility is required to deliver a Notice of Medicare Non-Coverage (NOMNC) at least two calendar days before services stop. That notice tells you when coverage ends. What it does not tell you is why.

The Detailed Explanation of Non-Coverage (DENC) fills that gap. In a fast appeal, the provider must give you a written DENC by the end of the day it receives notice from the Beneficiary and Family Centered Care Quality Improvement Organization (BFCC-QIO). It explains the specific reasons, coverage criteria, and clinical facts supporting the termination.

Most families never ask for one. They accept the NOMNC at face value and start scrambling to figure out private-pay options. That is a mistake, because the DENC is the document that tells you whether the denial is legally sound — or whether it relies on reasoning that you can challenge.

How to Request a DENC

The DENC is part of the fast-appeal process. Follow the appeal instructions on the NOMNC and request an expedited review from the BFCC-QIO. In Minnesota, that is Commence Health. You can also tell the facility administrator, case manager, or discharge planner in writing that you want the DENC.

Keep it short:

"I am requesting a fast appeal of the termination of [skilled nursing / physical therapy / occupational therapy / home health] services for [patient name], Medicare Beneficiary Identifier [MBI], effective [date on the NOMNC]. Please provide the Detailed Explanation of Non-Coverage (DENC) as part of this appeal."

The written explanation should identify the specific reasons and coverage criteria applied, together with the clinical evidence supporting the determination.

What to Look for in the DENC

Read the DENC with one question in mind: does the denial rely on an improvement standard?

If the explanation includes language like "patient has plateaued," "no further progress expected," "patient is at maximum rehabilitation potential," or "goals met" — and your parent still requires skilled assessment and intervention to maintain their current function — the denial may violate the Jimmo v. Sebelius settlement. That settlement, finalized in 2013, established that Medicare cannot deny skilled services solely because the patient is not expected to improve. Skilled maintenance therapy is covered when a qualified professional is needed to assess, design, or carry out a program to maintain function or prevent decline.

Also check whether the DENC addresses your parent's specific clinical situation or simply uses boilerplate language. A generic explanation that does not reference the patient's actual medical records is weak grounds for termination and gives you ammunition in an appeal.

Using the DENC in Your Appeal

In Minnesota, the expedited appeal goes to Commence Health (1-888-524-9900), the state's designated BFCC-QIO. The appeal deadline is noon on the day before the services are scheduled to end. Filing the appeal on time keeps the provider from ending services while Commence Health reviews the case. If the QIO upholds the termination, services provided after the coverage end date may become your responsibility.

When you call Commence Health or submit your appeal, reference the DENC directly:

• Quote any improvement-standard language and cite Jimmo v. Sebelius as the basis for continued coverage
• Describe the specific skilled services your parent still needs (wound assessment, medication management, therapeutic exercise requiring clinical judgment)
• Explain what would happen to your parent's function without those services — increased fall risk, contractures, aspiration risk, skin breakdown

The independent physician reviewer at Commence Health evaluates the case against Medicare's coverage criteria, which include the maintenance standard established by Jimmo. The DENC becomes the provider's own documented reasoning, and if that reasoning is flawed, it weakens their position.

DENC vs. Advance Beneficiary Notice (ABN)

Families sometimes confuse the DENC with the Advance Beneficiary Notice of Noncoverage (ABN). They are different documents with different purposes:

The ABN is delivered before services are provided, warning the patient that Medicare may not cover a particular service and asking whether they want to receive it anyway at their own expense. Signing an ABN means you accept financial responsibility if Medicare denies the claim.

The DENC is delivered after a coverage termination decision has been made, explaining the clinical reasons behind that decision. It is a post-decision explanatory document, not a pre-service consent form.

Both matter during a hospital-to-home or SNF transition. The ABN protects you from surprise bills for services Medicare has not yet evaluated. The DENC gives you the clinical ammunition to challenge a coverage termination through Commence Health.

The Bottom Line

Never accept a Medicare coverage termination without requesting the DENC. It costs nothing, takes two minutes to request, and gives you the specific clinical reasoning you need to decide whether an appeal is worth filing. In many cases, the DENC itself reveals that the denial rests on grounds that Medicare's own rules — post-Jimmo — no longer support.

The Minnesota Hospital Discharge Guide walks through the complete appeal process from NOMNC receipt through DENC request through Commence Health filing, with deadline trackers and clinical argument frameworks built for families managing these decisions under pressure.

See more Minnesota guides →