PDGM Analytics

PDGM analytics is the use of data and reporting to manage agency performance under the Patient-Driven Groupings Model (PDGM), Medicare's home health payment system of 30-day periods and 432 case-mix groups. It connects clinical and operational decisions, such as coding accuracy, OASIS scoring, and visit scheduling, to their payment and margin consequences at the period level.

Why PDGM created an analytics problem

PDGM, effective January 2020, pays each 30-day period based on a case-mix group built from admission source (community or institutional), timing (early for the first 30-day period, late for subsequent periods), one of 12 clinical groupings from the primary diagnosis, a functional impairment level (low, medium, or high, derived from OASIS items), and a comorbidity adjustment (none, low, or high) from secondary diagnoses. That is five dimensions, 432 combinations, recalibrated by CMS annually, most recently in the CY2026 final rule using CY2024 data. No manager can hold that in their head, so agencies need reporting that shows how their intake mix, coding, OASIS accuracy, and visit patterns translate into revenue and margin.

The metrics that belong on the dashboard

A focused PDGM dashboard covers a handful of measures:

  • Case-mix weight trends, overall and by clinical grouping, referral source, and team
  • LUPA rate and periods currently trending toward the threshold, which ranges from 2 to 6 visits depending on the HIPPS group
  • Visit utilization per period by discipline against the plan of care
  • Admission source and timing mix, since institutional and early periods pay differently than community and late
  • Comorbidity adjustment capture, the share of periods with low or high adjustments
  • Gross margin per period, combining payment with cost per visit

From reports to decisions

The value shows up when metrics change behavior. A falling case-mix weight in one clinical grouping usually points to coding or OASIS functional scoring drift, which is a QA education fix. A LUPA rate spike concentrated in one team is often a scheduling or missed-visit problem, catchable mid-period if the report runs daily rather than monthly. A margin gap between two referral sources with similar patients may reflect authorization friction or documentation quality at intake. The discipline is to route each metric to an owner: coding trends to the QA lead, LUPA-risk periods to schedulers the same day, and mix and margin views to leadership monthly.

Using PDGM analytics without crossing lines

Analytics should make the agency accurate, not aggressive. Chasing higher functional impairment levels through OASIS scoring, padding secondary diagnoses to reach a comorbidity adjustment, or adding clinically unnecessary visits to clear a LUPA threshold are the patterns that draw Targeted Probe and Educate reviews, UPIC audits, and False Claims Act exposure. The defensible use of the same data is symmetrical: find undercoded charts and unscored functional deficits that documentation supports, and find missed visits that left ordered care undelivered. A useful internal test is whether the correction would survive an auditor reading the chart, because eventually one will.

Frequently asked questions

What is the single most important PDGM metric to watch?

If forced to pick one, LUPA rate, because it is controllable in-flight and each avoidable LUPA typically swings a period from a full case-mix payment to a handful of per-visit payments. Case-mix weight trend is a close second as the summary indicator of coding and OASIS accuracy.

How often should PDGM reports be reviewed?

LUPA-risk and visit completion reports need daily review during the period, since a 30-day period cannot be fixed after it closes. Case-mix, utilization, and margin trends work on a weekly to monthly cadence, and payer or referral mix analysis fits a monthly or quarterly leadership review.

Do the CY2026 recalibrations change what agencies should track?

The mechanics stay the same, but the CY2026 final rule recalibrated case-mix weights, functional levels, comorbidity subgroups, and LUPA thresholds using CY2024 data, alongside an estimated 1.3% aggregate payment decrease. Agencies should rebaseline dashboards each January so year-over-year comparisons reflect rule changes rather than performance drift.

Related terms