IPPS DRG Payment Estimate

IPPS DRG payment estimate: relative weight x the wage-index-adjusted operating+capital base, with the per-diem transfer reduction.

Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.

Example

MS-DRG relative weight: 1.5
Operating base rate: 6000 $
Capital base rate: 500 $
Wage index: 1

Result: Base DRG payment $9750.00 = relative weight 1.5 x wage-adjusted base $6500.00.

The tool opens with these values already filled in. Replace them with your own.

What you enter

MS-DRG relative weight
Operating base rate
Capital base rate
Wage index (default 1.0)
Post-acute transfer (apply the per-diem reduction)
Length of stay in days (transfer only)
Geometric mean LOS in days (transfer only)
Entered add-ons (outlier / IME / DSH)

How this is calculated

42 CFR Part 412 (IPPS): the DRG payment = relative weight x the hospital base rate (operating + capital standardized amounts, wage-index adjusted), before outlier/IME/DSH add-ons. CMS IPPS Final Rule; the DRG relative-weight table. Estimates the operating model only. Read the source ↗

A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.