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MDC PRE: Pre-MDC (transplants, tracheostomy, ECMO)

17 MS-DRGs (13 surgical, 4 medical) with FY2027 relative weights averaging 12.0582. Click any DRG for its weight history, CC/MCC family, grouper code lists and denial exposure.

Reviewed by QuickIntell RCM Editorial Team · Last reviewed

Data effective

MS-DRGs in MDC PRE

Weights in this category range from 2.7300 (DRG 013) to 45.1270 (DRG 018); the change column compares FY2027 with FY2026.

MS-DRGs assigned to MDC PRE with FY2027 weights
DRGTitleTypeWeightGMLOSChange
001Heart Transplant or Implant of Heart Assist System with MCCSurgical28.083024.5+0.2%
002Heart Transplant or Implant of Heart Assist System without MCCSurgical11.00409.4-2.9%
003ECMO or Tracheostomy with MV >96 Hours or Principal Diagnosis Except Face, Mouth and Neck with Major O.R. ProceduresSurgical21.274022.0+0.2%
004Tracheostomy with MV >96 Hours or Principal Diagnosis Except Face, Mouth and Neck without Major O.R. ProceduresSurgical13.588022.0-1.9%
005Liver Transplant with MCC or Intestinal TransplantSurgical10.474013.1+1.6%
006Liver Transplant without MCCSurgical4.57507.1-1.3%
007Lung TransplantSurgical14.870021.1+14.8%
008Simultaneous Pancreas, Islet Cell and Kidney TransplantSurgical5.51208.2-1.7%
010Pancreas or Islet Cell TransplantSurgical7.523010.4+4.8%
011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCCSurgical5.613011.7+2.9%
012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CCSurgical4.37908.5+3.9%
013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCCSurgical2.73006.2-5.3%
014Allogeneic Bone Marrow TransplantMedical11.789026.0-1.9%
016Autologous Bone Marrow Transplant with CC/MCCMedical6.014015.6+1.4%
017Autologous Bone Marrow Transplant without CC/MCCMedical4.88909.5-10.0%
018Chimeric Antigen Receptor (CAR) T-Cell and Other ImmunotherapiesMedical45.127011.4+4.5%
019Simultaneous Pancreas, Islet Cell and Kidney Transplant with HemodialysisSurgical7.546012.3+5.8%

How to read this table

The relative weight is the payment multiplier CMS applies to a hospital's wage-adjusted standardized amount; a weight of 2.0 pays roughly twice an average inpatient case before outliers and add-ons. Geometric mean length of stay is the figure used in post-acute transfer calculations, so stays shorter than it in a transfer DRG are paid per diem. The change column compares the FY2027 final weight with FY2026; moves larger than two percent usually come from code reassignments in the final rule's Table 6 series or from updated cost data, and are worth re-checking in contract models and budgets before October 1. Surgical DRGs require a qualifying operating-room procedure; medical DRGs are reached when no such procedure is coded.

Frequently asked questions

How many MS-DRGs are in MDC PRE?

17 MS-DRGs are assigned to MDC PRE (Pre-MDC (transplants, tracheostomy, ECMO)) in the FY2027 v44 grouper: 13 surgical and 4 medical.

Which MDC PRE DRG has the highest weight?

DRG 018, Chimeric Antigen Receptor (CAR) T-Cell and Other Immunotherapies, carries the highest FY2027 relative weight in this category at 45.1270; the lowest is DRG 013 at 2.7300.

How is a stay assigned to this MDC?

Pre-MDC and unassigned groups are selected before the principal-diagnosis MDC logic, typically on the basis of a transplant, ECMO, tracheostomy or ungroupable record.

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-01. Verify against the primary file before billing or contracting decisions.

Disclaimer

Operational reference compiled from CMS publications. Relative weights are national factors; actual payment depends on hospital-specific rates and adjustments. Not legal, clinical or billing advice.