PEP (Partial Episode Payment)

Two events trigger a PEP adjustment on a 30-day period. First, the patient transfers to another home health agency mid-period: the original agency's period is cut short and prorated, while the receiving agency opens its own admission and payment period. Second, the patient is discharged because the goals of the plan of care were met, and then returns to home health within the same 30-day window: the original period is prorated and a new period begins with the readmission. Routine events do not trigger a PEP. A hospitalization mid-period, by itself, does not; neither does a discharge near the end of a period with no readmission inside it.

Instead of the full case-mix payment, Medicare pays a proportion based on the span of days the agency was serving the patient, counted from the first day of the 30-day period through the date of the last billable visit, divided by 30. A period cut short on day 12 by a transfer pays roughly 40 percent of the full amount, even though the agency's fixed costs, assessment, care planning, coding, and billing work were fully incurred. That is what makes PEP frequency worth managing: each one repeats the episode's overhead for a fraction of the revenue.

Both adjustments pay less than the full period amount, but they are different mechanics. A Low Utilization Payment Adjustment (LUPA) applies when visit volume falls below the case-mix group's threshold, and pays per visit. A PEP applies when the period is truncated by a transfer or discharge-and-readmission, and pays a prorated share of the case-mix amount. A LUPA is usually an internal operations signal about scheduling and visit completion. A PEP usually reflects patient movement, some of it unavoidable, some of it a symptom of weak patient retention, premature discharges, or referral relationships that pull patients away mid-episode.

Agencies cannot and should not prevent every transfer, but they can manage the avoidable ones:

• Investigate every PEP: was the transfer driven by patient preference, service gaps, or a competitor relationship?
• Set discharge criteria carefully; discharging early and readmitting within the period converts full payment into a prorated one
• Monitor eligibility data for overlapping episodes so transfers are identified quickly and billed correctly
• Coordinate handoffs when transfers are appropriate, since contested overlapping claims delay payment for both agencies

A rising PEP rate is a patient-experience and retention metric wearing a billing costume.