PDGM and the 30-Day Period: How Payment Timing Drives Home Health Cash Flow

Sep 2

4 min read

Since 2020, Medicare has paid home health in 30-day periods instead of 60-day episodes — and a single late Notice of Admission now cuts a period's payment by 1/30 for every day it is late (CMS, MM12256; 42 CFR 484.205). The Patient-Driven Groupings Model (PDGM) didn't just change how much agencies are paid; it changed when, and it punishes billing delays harder than the old system ever did. For agency owners, cash flow now lives and dies on the NOA clock and the LUPA threshold. Here is how the mechanics work and where the money leaks.

Key Takeaways

Home health is paid in 30-day periods, each sorted into one of 432 PDGM payment groups.
The Notice of Admission (NOA) must be filed within 5 calendar days of the start of care.
A late NOA reduces the period payment by 1/30 per day late — and it is provider liability you cannot bill the patient for.
Periods below the visit threshold are paid per-visit as a LUPA (about 7% of periods in 2024).
The average full 30-day period paid about $2,024 in 2023; payment per visit was about $237.
Front-loading intake and billing discipline is now a direct cash-flow lever.

The 30-Day Period Replaced the 60-Day Episode

Under PDGM, each 30-day period is case-mix adjusted based on admission source, timing, clinical grouping, functional level, and comorbidities — 432 combinations in all. Two 30-day periods for the same patient can pay very differently, and the first period in a sequence generally pays more than later ones.

Metric	Value	Source
Unit of payment	30-day period	CMS
PDGM payment groups	432	CMS CY 2026/2027 rules
Average payment per full 30-day period (2023)	$2,024	MedPAC, March 2026
Medicare payment per in-person visit (2023)	$237	MedPAC, March 2026
Average in-person visits per full period (2024)	8.4	MedPAC, March 2026

The NOA: The Fastest Way to Lose Money

The Notice of Admission replaced the Request for Anticipated Payment (RAP) in 2022. There is no upfront cash with an NOA — its only job is to establish the period timely. Miss the window and you are penalized.

NOA rule	Detail	Source
Filing deadline	Within 5 calendar days of start of care	CMS MM12256
Late penalty	Payment reduced 1/30 of the period amount per day late	CMS MM12256
Who absorbs it	Provider liability — cannot bill the beneficiary	CMS MM12256
LUPA visits before NOA	Not paid for visits on days before NOA submission	CMS MM12256
Multi-period exposure	A very late NOA can reduce more than one 30-day period	CMS MM12256

A single NOA filed 10 days late costs roughly a third of that period's payment — pure margin gone, on a benefit already running tight. This is the highest-ROI process to tighten in most agencies.

LUPA: The Threshold That Swings a Period's Value

If a 30-day period has fewer visits than its group-specific LUPA threshold (which ranges from two to five visits), Medicare pays per visit instead of the full case-mix amount. In 2024, about 7% of periods were LUPAs, and full periods made up about 93% of volume.

A period that lands one visit under its threshold can lose most of its value.
Visit planning against each period's LUPA threshold is a clinical and financial decision.
Track LUPA rate as a core KPI; a rising LUPA rate quietly erodes revenue.

What This Means for Cash Flow

PDGM compresses the billing cycle and front-loads risk onto intake and coding.

File the NOA first, always. Build a 5-day hard stop into intake.
Watch the LUPA line. Under-visiting to control cost can tip a period into per-visit payment.
Reconcile periods to claims so no 30-day period is left unbilled.
Model the timing. With CMS continuing a -3% temporary rate adjustment into 2026-2027, period-level efficiency is what protects margin.

Clean, timely billing supported by accurate bookkeeping turns PDGM's timing rules from a threat into a predictable cash cycle. The same period-level data also feeds your annual Medicare cost report.

What the CY 2027 Proposed Rule Changes

The billing timing in this article matters even more under the CY 2027 proposed rule (CMS-1844-P). CMS proposes a net +2.4% update but keeps the −3% temporary clawback, and it would recalibrate case-mix weights using CY 2025 claims — so the mix of periods you bill, and how cleanly you bill them, moves real dollars. Every avoidable NOA penalty or unplanned LUPA now comes off a rate already under recoupment pressure (CMS, CMS-1844-P, proposed July 2026; final rule expected around November 2026).

Sources

CMS, MM12256 — Replacing Home Health Requests for Anticipated Payment (RAP) with the Notice of Admission (NOA)
42 CFR 484.205 (home health prospective payment); CMS CY 2026 and CY 2027 HH PPS rules (432 payment groups)
Medicare Payment Advisory Commission (MedPAC), Report to the Congress: Medicare Payment Policy, Chapter 8, March 2026

Last updated: September 2026.

Soriaga & Associates, LLC specializes in home health and hospice accounting. Schedule a free consultation to tighten your billing cycle and protect cash flow.