JD
Geographic Adjustment Factor (GAF)
Current locality: Illinois — Chicago Metro (Locality 16)
1.0847
Work GPCI
1.1203
PE GPCI
1.0000
MP GPCI
$33.8872
CF 2025
MS-DRG Rates — FY 2025
Medicare Severity Diagnosis Related Groups
DRGDescriptionMDCTypeRel. WeightAvg LOSRate (IL)
470Major Joint Replacement or Reattachment — Lower Extremity w/o MCC08Medical2.10472.8d$21,048
291Heart Failure and Shock w MCC05Medical1.89235.2d$18,921
065Intracranial Hemorrhage or Cerebral Infarction w MCC01Medical2.51786.4d$25,175
392Esophagitis, Gastroent & Miscellaneous Digest Disorders w MCC06Medical0.92343.7d$9,232
683Renal Failure w MCC11Medical1.44124.9d$14,410
190Chronic Obstructive Pulmonary Disease w MCC04Medical1.26784.1d$12,676
178Respiratory Infections & Inflammations w MCC04Medical1.93415.8d$19,339
811Red Blood Cell Disorders w MCC16Medical1.10233.3d$11,021
Multiple Procedure Payment Reduction (MPPR)
CMS payment reduction rules for multiple procedures same encounter
CPT CodeDescriptionPayment Category1st ProcedureReduction %Allowable (IL)
93971Duplex scan — extremity unilateralDiagnostic Imaging100%25%$82.44
93970Duplex scan — extremity bilateralDiagnostic Imaging100%50%$115.22
77055Mammography unilateralDiagnostic Imaging100%25%$60.11
97014Electrical stimulation therapyTherapy100%50%$14.89
97035Ultrasound therapyTherapy100%50%$11.24
Home Infusion Therapy Rates
Medicare Part B home infusion per-diem rates (2025)
HCPCSDrug CategoryPer Diem RateMax DaysRouteStatus
S9494Antibiotic drugs (complex IV)$192.0060dIVActive
S9500Antibiotic drugs (routine IV)$103.0060dIVActive
S9501Hydration (3 hrs or less)$54.0030dIVActive
S9537Hematopoietic hormone infusion$219.0090dSubQ/IVActive
S9542Insulin infusion (complex)$192.00OngoingSubQActive
AI Assistant

Medicare Pricing manages the CMS fee schedules used for adjudicating Medicare Advantage and crossover claims. Rates are updated annually and adjusted by geographic locality.

MS-DRGs (Medicare Severity Diagnosis Related Groups) are used for inpatient institutional claims. The base rate is multiplied by the DRG relative weight and adjusted by the geographic IPPS rate.

Multiple Procedure Payment Reduction (MPPR) applies when multiple imaging or therapy services are billed in the same session. The highest-valued procedure pays 100%; subsequent procedures are reduced.

GPCIs (Geographic Practice Cost Indices) adjust physician fee schedule payments for differences in cost of living across localities. Three components: Work, Practice Expense (PE), and Malpractice (MP).