A skilled nursing facility can win a rate increase and still wait longer to get paid than it did the year before. For fiscal 2026, Medicare raised SNF PPS rates by a net 3.2 per cent.1 That number lands in the rate table on day one. Whether it lands in the bank depends on how quickly clean claims go out and how few come back, which is a different problem from the rate and usually a bigger one.
Payment starts at the assessment, not the therapy log
Under PDPM (Patient-Driven Payment Model), the per diem is based on the MDS (Minimum Data Set) assessment rather than on the volume of therapy delivered. The resident's primary diagnosis, coded in ICD-10, maps to a clinical category, and that category drives the five case-mix components that set payment: physical therapy, occupational therapy, speech, nursing, and non-therapy ancillary. Get the assessment or the primary diagnosis wrong, and the claim can still pay, just short, at a lower case-mix than the resident's care actually supports. That is the quiet version of a revenue problem. It does not deny. It underpays, and it looks like a paid claim.
The 2026 rule sharpened this. CMS changed 34 of the PDPM ICD-10 mappings, and 33 of them moved codes from Medical Management to Return to Provider.1 A primary diagnosis that mapped cleanly last year can now be sent back for a more specific code. Small coding change, direct AR consequence: claims that used to go straight through now sit until someone reworks them.
Days in AR tells the truth
Accounts receivable is where a facility actually keeps or loses the rate increase. The number that tells the truth is Days in AR, receivables divided by average daily revenue. A facility can bill more and still watch that number climb, because under PDPM the money sits for reasons that trace straight back to documentation.
The 5-day assessment sets the payment for the stay. A late or thin assessment locks in a lower rate that is expensive to unwind later, if it can be unwound at all. PDPM allows an optional Interim Payment Assessment to capture a real change in the resident's status, and facilities that never use it leave accurate payment on the table. An unspecified primary diagnosis, now that the Return-to-Provider list is longer, is a rejection waiting to happen. When a MAC issues an Additional Documentation Request, the claim is on hold until the record is produced and reviewed, and a weak record can turn a pause into a denial.
The front end matters as much as the coding. Part A coverage still depends on a qualifying inpatient hospital stay and on the benefit days the resident actually has left, and on a verification that was rushed at admission, only to surface weeks later as a denial, after the care is delivered and the cost is sunk. Consolidated billing adds its own trap: most services during a covered Part A stay are bundled into the per-diem, and billing separately for something that should have been included invites a takeback.
Payer mix compounds all of it. A Medicare Advantage plan authorizes and pays on its own terms, and when managed-care claims share a worklist with traditional Medicare, they are the ones that quietly age. Two more numbers sit atop the rate. CMS withholds 2 per cent of Part A payments to fund the Value-Based Purchasing program and returns only part of it based on performance; a facility that misses Quality Reporting requirements loses 2 percentage points from its annual update.1 Neither is strictly an AR problem. Both mean the posted rate and the collected rate are not the same number, which is the whole reason to watch the cash instead of the fee schedule.
What actually shortens the cycle
None of this looks like a crisis on the census board. It looks like a full, busy building with an AR number that creeps up a few days each quarter. Then one large payer runs slow, a month of delayed cash becomes a line-of-credit conversation, or an appeal window closes, and a recoverable claim becomes a write-off.
The work that brings Days in AR down does not start with the oldest claims. It starts upstream. Tie revenue back to the case-mix that produced it, so you can see where residents are being coded below the care they receive, not only where claims were denied. Review the MDS and the primary diagnosis against the current mappings before the claim goes out, not after it bounces. Run ADRs and denials through a defined process, with owners and deadlines, instead of working them one at a time between admissions. And segment AR by payer, because traditional Medicare, Medicare Advantage, and Medicaid managed care age for different reasons and hide each other's problems when they share one report.
A clean claim that goes out right the first time is the cheapest money a SNF collects. Every touch after that, every rebill, appeal, and corrected assessment, costs staff time and pushes the cash further out. The rate increase is already yours on paper. Whether you keep it is decided in AR.
Related reading: Optimizing Healthcare Accounts Receivable
Appendix: Sources
- CMS FY 2026 Skilled Nursing Facility PPS Final Rule Fact Sheet (CMS-1827-F) — net 3.2% payment update ($1.16 billion increase over FY2025); 34 finalized changes to the PDPM ICD-10-CM code mappings; SNF Value-Based Purchasing withhold and Quality Reporting Program payment reduction.
- Federal Register: FY2026 SNF PPS Final Rule, full text