All ICD10 Codes

DRG 001

Surgical DRG

Heart Transplant or Implant of Heart Assist System with MCC

TypeSurgical

What is MS-DRG 001?

MS-DRG 001 is a Surgical Medicare Severity Diagnosis Related Group with a Major Complication or Comorbidity (MCC). For FY 2026 it carries a relative weight of 28.0239 with a geometric mean length of stay of 25.8 days and an arithmetic mean of 36.2 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Surgical DRG
Procedure-driven grouping
MDC
Pre-MDC / Multi-MDC
Linked Codes
0 diagnosis
23 procedure

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
28.0239
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
25.8 days
Used for transfer payment calculations
Arithmetic Mean LOS
36.2 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

Related MS-DRGs in This Severity Group

The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.

DRGTitleRel. WeightGMLOS
001Heart Transplant or Implant of Heart Assist System with MCCThis page28.023925.8 days
002Heart Transplant or Implant of Heart Assist System without MCC11.33188.5 days

Linked ICD-10-PCS Procedure Mappings

  • 02HA0QZ

    Insertion of Implantable Heart Assist System into Heart, Open Approach

    BillableSection 0
  • 02HA0RS

    Insertion of Biventricular Short-term External Heart Assist System into Heart, Open Approach

    BillableSection 0
  • 02HA0RZ

    Insertion of Short-term External Heart Assist System into Heart, Open Approach

    BillableSection 0
  • 02HA3QZ

    Insertion of Implantable Heart Assist System into Heart, Percutaneous Approach

    BillableSection 0
  • 02HA3RS

    Insertion of Biventricular Short-term External Heart Assist System into Heart, Percutaneous Approach

    BillableSection 0
  • 02HA3RZ

    Insertion of Short-term External Heart Assist System into Heart, Percutaneous Approach

    BillableSection 0
  • 02HA4QZ

    Insertion of Implantable Heart Assist System into Heart, Percutaneous Endoscopic Approach

    BillableSection 0
  • 02HA4RS

    Insertion of Biventricular Short-term External Heart Assist System into Heart, Percutaneous Endoscopic Approach

    BillableSection 0
  • 02HA4RZ

    Insertion of Short-term External Heart Assist System into Heart, Percutaneous Endoscopic Approach

    BillableSection 0
  • 02PW3RZ

    Removal of Short-term External Heart Assist System from Thoracic Aorta, Descending, Percutaneous Approach

    BillableSection 0
  • 02RA0LZ

    Replacement of Heart with Biologic and Synthetic Substitute, Autoregulated Electrohydraulic, Open Approach

    BillableSection 0
  • 02RA0MZ

    Replacement of Heart with Synthetic Substitute, Pneumatic, Open Approach

    BillableSection 0
  • 02RK0JZ

    Replacement of Right Ventricle with Synthetic Substitute, Open Approach

    BillableSection 0
  • 02WA0QZ

    Revision of Implantable Heart Assist System in Heart, Open Approach

    BillableSection 0
  • 02WA0RZ

    Revision of Short-term External Heart Assist System in Heart, Open Approach

    BillableSection 0
  • 02WA3QZ

    Revision of Implantable Heart Assist System in Heart, Percutaneous Approach

    BillableSection 0
  • 02WA3RZ

    Revision of Short-term External Heart Assist System in Heart, Percutaneous Approach

    BillableSection 0
  • 02WA4QZ

    Revision of Implantable Heart Assist System in Heart, Percutaneous Endoscopic Approach

    BillableSection 0
  • 02WA4RZ

    Revision of Short-term External Heart Assist System in Heart, Percutaneous Endoscopic Approach

    BillableSection 0
  • 02WW3RZ

    Revision of Short-term External Heart Assist System in Thoracic Aorta, Descending, Percutaneous Approach

    BillableSection 0
  • 02YA0Z0

    Transplantation of Heart, Allogeneic, Open Approach

    BillableSection 0
  • 02YA0Z1

    Transplantation of Heart, Syngeneic, Open Approach

    BillableSection 0
  • 02YA0Z2

    Transplantation of Heart, Zooplastic, Open Approach

    BillableSection 0