RARC N120: Home Health Partial Episode Payment Adjustment
Payment was reduced because a partial home health episode occurred — typically due to a patient transfer, discharge, or agency change mid-episode under the Home Health Prospective Payment System.
What Does RARC N120 Mean?
RARC N120 appears on home health claims when the Home Health Prospective Payment System (HH PPS) applies a Partial Episode Payment (PEP) adjustment. Under HH PPS, Medicare pays home health agencies a bundled amount for each 60-day episode of care. However, when the episode is interrupted — because the patient transfers to a different agency, is discharged and later readmitted, or experiences a significant change in condition that triggers a new plan of care — the full episode payment is prorated to reflect only the portion of the episode the agency actually provided.
The PEP adjustment divides the episode payment based on the number of days the patient was actually under the agency's care relative to the full 60-day period. This means the agency receives less than the full episode payment, which can be a significant reduction if the patient was only under care for a short portion of the episode. The adjustment is automatic and based on the claims data — the payer does not request additional documentation before applying it.
N120 is informational in the sense that it explains why the payment is lower than the full episode rate, but it carries real financial impact. Understanding when and why partial episodes occur is important for managing home health revenue.
What to Do
Review the claim to verify that the episode dates, patient status codes, and transfer information are accurate. If the partial episode is legitimate — the patient did transfer to another agency or was discharged mid-episode — the PEP adjustment is correct and no action is needed beyond reconciling the reduced payment in your accounts receivable.
If you believe the partial episode designation is incorrect (for example, if the patient was not actually transferred or if the episode dates on the claim are wrong), correct the claim data and resubmit. Pay particular attention to patient status codes and the "from" and "through" dates, as errors in these fields can trigger an incorrect PEP adjustment. For agencies experiencing frequent partial episodes, analyzing the causes — whether patient-driven transfers, care coordination issues, or data entry errors — can help reduce unexpected payment reductions.
Common Scenarios
- A home health patient is hospitalized mid-episode and upon discharge chooses a different home health agency, resulting in a PEP adjustment for the original agency
- A patient is discharged from home health services after 25 days of a 60-day episode because they no longer meet homebound criteria, and the episode payment is prorated
- A billing error lists incorrect episode start and end dates that make it appear the episode was interrupted, triggering an unnecessary PEP adjustment
Commonly Paired With
No common pairings documented yet.