The same 30-day period does not pay the same across your service counties.
Under the CMS CY2026 Home Health Prospective Payment System Final Rule, your case-mix weight is only half the story. The other half is the CBSA wage index sitting under each patient's ZIP. Here is the map to put on the wall.
In 2026, two identical clinical episodes can pay 15 to 30 percent apart depending only on the county they are delivered in, because CMS multiplies the labor share of every 30-day payment by that area's CBSA wage index. Layer LUPA thresholds on top and a high-wage county with a soft visit plan can quietly earn less than a low-wage county that clears its threshold. Map both together, per county, and you stop leaving margin on the table.
Four numbers decide the 30-day period
PDGM stopped paying for therapy volume years ago. In 2026 the payment is a case-mix weight applied to a national base rate, then bent by geography and gated by visit count.
The CBSA wage-index geo-grid, with LUPA risk layered on
Same clinical episode, four different counties. The wage index rescales the labor portion of the payment; the risk badge flags how thin the LUPA margin runs for your typical visit plan there.
Wage index × LUPA risk · illustrative CBSA bands
Bands shown are illustrative. Pull your real numbers from the CY2026 HH PPS Final Rule wage index file for each CBSA you serve, then apply the standing permanent 5% cap on any year-over-year wage index decrease before you model the period.
How one 30-day period gets priced
Five case-mix signals build the HHRG weight. Geography and the visit count decide what that weight is actually worth.
LUPA is where wage-index gains get erased
Every HHRG carries its own LUPA threshold between 2 and 6 visits. Land below it and the whole period drops from a case-mix payment to per-visit pricing. In a low-wage county, that swing is brutal.
Why the wall map earns its space
One archetype patient, identical HHRG, different CBSA. Relative pay is indexed to the mid-wage county at 100.
| County archetype | CBSA wage index | Relative full-period pay | LUPA exposure |
|---|---|---|---|
| Coastal Metro | 1.18 | ~118 | Moderate · watch soft plans |
| Regional Town | 0.94 | 100 | High · threshold-sensitive |
| Rural County | 0.83 | ~88 | High · every visit counts |
Relative figures are illustrative and index only the geographic effect. Case-mix recalibration and the permanent behavioral adjustment in the CY2026 Final Rule move the national base rate underneath all three.
What changed, and when
The functional items feeding your PDGM functional level and, in turn, the HHRG, come from OASIS-E1. Clean, accurate scoring is upstream of every payment on this map.
CMS recalibrates PDGM case-mix weights and LUPA thresholds annually and continues applying the permanent behavioral adjustment to the base payment rate. Re-baseline your HHRG weights and thresholds against the current release, not last year's file.
The HH PPS wage index is refreshed each year with CBSA delineations, held budget-neutral, and protected by the standing permanent 5% cap on year-over-year decreases. That cap is exactly why a falling county still deserves a line on your map.
The guidelines behind every number here
CMS CY2026 Home Health PPS Final Rule
The governing rule for 2026 30-day period payment, the national base rate, budget neutrality and the annual wage index update.
PDGM case-mix recalibration & behavioral adjustment
Annual re-weighting of the 432 HHRGs plus the permanent behavioral adjustment applied to the base rate.
LUPA thresholds
Per-HHRG visit floors, from 2 to 6 visits, that switch a period between full case-mix and per-visit payment.
OASIS-E1
The assessment instrument supplying the functional and clinical data that set your functional level and clinical group.
We will build your actual wage-index map, county by county.
ASP-RCM Solutions pulls your real CBSA wage indices and HHRG-level LUPA thresholds, layers them over your live census, and hands your home health billing team a per-county map plus a standing report that flags every period sitting one visit under threshold. Less margin left on the table, more clean claims out the door.
Map my counties →This article is educational and references the CMS CY2026 Home Health Prospective Payment System Final Rule, PDGM case-mix recalibration and behavioral adjustment, LUPA thresholds and OASIS-E1. Wage index values and relative pay figures shown are illustrative examples for teaching the mechanics, not published CMS rates. Verify your CBSA wage indices, HHRG weights and LUPA thresholds against the current CMS release before making billing or staffing decisions.
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