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Guide · Home Health

Understanding LUPA

A Low Utilization Payment Adjustment is the steepest cliff in home-health payment: come up even one visit short of a period’s threshold and the whole 30 days pays per visit instead of the full case-mix amount. Here’s how the threshold is set, how a LUPA is paid, and why it matters. A companion to How PDGM Works.

In short

Every PDGM 30-day period has a visit threshold between 2 and 6, set by its case-mix group. Finish below it and the period is a LUPA — paid per visit by discipline, which is far less than the full case-mix payment. Reach it and you get the whole 30-day amount. The gap between those two is large, which is what makes the threshold matter.

What a LUPA is

Medicare expects a 30-day period to involve a certain number of visits given the patient’s complexity. If the completed visits come in below the period’s threshold, Medicare doesn’t pay the full case-mix-adjusted 30-day rate. Instead it pays per visit — the national rate for each discipline that went — which usually adds up to much less. Meet or exceed the threshold and the full period payment applies.

Payment for the 30-day period1234567visits completed in the 30-day periodthresholdthe cliffbelow → per-visitat / above → full case-mix payment
One visit can be worth a lot. Below the threshold the period pays per visit (a small, rising amount); reach the threshold and it jumps to the full case-mix 30-day payment. A threshold of 4 is shown for illustration.

How it changed under PDGM

This used to be simple. Under the old Home Health PPS, a period was 60 days and a LUPA was four or fewer visits — one fixed rule for everyone. PDGM shortened the unit of payment to 30 days and made the threshold vary by case-mix group, so the number you have to clear now depends on the patient.

Before 2020 · HH PPS60-day episodeLUPA if 4 or fewer visitsone fixed rule for everyonePDGM · 2020 onward30-day periodLUPA below a 2–6 visit thresholdthreshold varies by case-mix group
PDGM replaced the single fixed LUPA rule with a per-group threshold on a shorter period — so the line you have to clear now changes from patient to patient.

What sets the threshold

Each of PDGM’s 432 case-mix groups carries its own threshold, derived from the same factors that drive the payment: the clinical group, admission source and timing, functional level, and comorbidity adjustment. CMS sets each group’s threshold from claims data and updates it annually, so it always lands between 2 and 6 visits.

Clinical groupAdmission source & timingFunctional levelComorbidity adjustmentthis group’s LUPA threshold234562 to 6 visits, set per group
The threshold isn’t one number. It’s assigned to each of the 432 case-mix groups from the same factors that drive PDGM payment, landing somewhere between 2 and 6 visits.

How a LUPA period is paid

A LUPA isn’t a flat penalty — it’s paid as the sum of the visits that actually happened, each at the national per-visit rate for its discipline (skilled nursing, PT, OT, SLP, medical social work, home health aide), wage-adjusted to the area. Because admission costs are front-loaded, there’s also a LUPA add-on: when the first visit of an initial period is itself a LUPA, that first skilled visit earns an extra amount.

relative per-visit rateSNSkillednursingPTPhysicaltherapyOTOccupationaltherapySLPSpeech-languageMSWMedicalsocial workHHAHomehealth aideA LUPA period pays the sum of its visits at the national per-visit rate for each discipline.If the first visit of an initial period is a LUPA, that visit gets an add-on (SN, PT, OT, SLP).
Each discipline has its own wage-adjusted national per-visit rate, updated yearly. A first skilled visit in an initial LUPA period also earns an add-on to cover front-loaded admission costs.

Why it matters

The point of the threshold isn’t to push more visits for their own sake — it’s to make the visit plan match the patient’s assessed needs. But the financial edge is real: a period that lands one visit short can pay a small fraction of what the same period would earn at threshold. Two practical implications follow:

  • Know the threshold up front. It’s fixed by the case-mix group at the start of the period, so it can be planned around from the OASIS and coding.
  • Watch the early/late and admission-source split. The first and second 30-day periods of a stay can sit in different groups with different thresholds.

Key takeaways

  • A LUPA pays a 30-day period per visit instead of the full case-mix amount.
  • Each of the 432 groups has its own threshold, from 2 to 6 visits.
  • It’s a cliff: one visit can flip the whole period’s payment.
  • Payment is the sum of per-visit rates by discipline, plus a first-visit add-on on initial periods.
  • The threshold is set at the start of the period by the case-mix group — so it can be planned for.

Try it on the tools

LUPA Calculator →Scenario Simulator →PDGM Calculator →HH HIPPS Decoder →

Last reviewed May 2026. Educational overview only — verify thresholds and per-visit rates against the current CMS PDGM guidance and HH PPS Final Rule before billing.