MS-DRG Directory

DRG Codes 2026

Browse and search the official 2026 Medicare Severity Diagnosis Related Groups. Open any DRG to see related ICD-10-CM diagnosis mappings.

Total DRGs
452
Medical
360
Surgical
92
MDCs
25

Understanding MS-DRG Concepts

What is MS-DRG?

Medicare Severity Diagnosis Related Group (MS-DRG) is a classification system used by Medicare and other insurers to group hospital cases with similar clinical characteristics and resource needs.

Major Diagnostic Category (MDC)

MDCs are broad clinical categories (usually organized by organ system) that act as the first level of classification. Each MDC is subdivided into specific medical or surgical DRGs.

Medical vs. Surgical

DRGs are partitioned into Medical (based on diagnosis) and Surgical (based on significant OR procedures). Surgical DRGs typically involve higher resource consumption.

Coding Value

This directory allows you to browse 2026 MS-DRGs, see their MDC parentage, and access detailed mappings to relevant ICD-10-CM diagnosis codes.

Showing 120 of 452 DRGs
  • 212Concomitant Aortic and Mitral Valve Procedures
    MDC 05 · Surgical
  • 213Endovascular Abdominal Aorta with Iliac Branch Procedures
    MDC 05 · Surgical
  • 215Other Heart Assist System Implant
    MDC 05 · Surgical
  • 245AICD Generator Procedures
    MDC 05 · Surgical
  • 263Vein Ligation and Stripping
    MDC 05 · Surgical
  • 264Other Circulatory System O.R. Procedures
    MDC 05 · Surgical
  • 265AICD Lead Procedures
    MDC 05 · Surgical
  • 275Cardiac Defibrillator Implant with Cardiac Catheterization and MCC
    MDC 05 · Surgical
  • 280Acute Myocardial Infarction, Discharged Alive with MCC
    MDC 05 · Medical
  • 281Acute Myocardial Infarction, Discharged Alive with CC
    MDC 05 · Medical
  • 282Acute Myocardial Infarction, Discharged Alive without CC/MCC
    MDC 05 · Medical
  • 283Acute Myocardial Infarction, Expired with MCC
    MDC 05 · Medical
  • 284Acute Myocardial Infarction, Expired with CC
    MDC 05 · Medical
  • 285Acute Myocardial Infarction, Expired without CC/MCC
    MDC 05 · Medical
  • 288Acute and Subacute Endocarditis with MCC
    MDC 05 · Medical
  • 289Acute and Subacute Endocarditis with CC
    MDC 05 · Medical
  • 290Acute and Subacute Endocarditis without CC/MCC
    MDC 05 · Medical
  • 291Heart Failure and Shock with MCC
    MDC 05 · Medical
  • 292Heart Failure and Shock with CC
    MDC 05 · Medical
  • 293Heart Failure and Shock without CC/MCC
    MDC 05 · Medical
  • 296Cardiac Arrest, Unexplained with MCC
    MDC 05 · Medical
  • 297Cardiac Arrest, Unexplained with CC
    MDC 05 · Medical
  • 298Cardiac Arrest, Unexplained without CC/MCC
    MDC 05 · Medical
  • 299Peripheral Vascular Disorders with MCC
    MDC 05 · Medical
  • 300Peripheral Vascular Disorders with CC
    MDC 05 · Medical
  • 301Peripheral Vascular Disorders without CC/MCC
    MDC 05 · Medical
  • 302Atherosclerosis with MCC
    MDC 05 · Medical
  • 303Atherosclerosis without MCC
    MDC 05 · Medical
  • 304Hypertension with MCC
    MDC 05 · Medical
  • 305Hypertension without MCC
    MDC 05 · Medical
  • 306Cardiac Congenital and Valvular Disorders with MCC
    MDC 05 · Medical
  • 307Cardiac Congenital and Valvular Disorders without MCC
    MDC 05 · Medical
  • 308Cardiac Arrhythmia and Conduction Disorders with MCC
    MDC 05 · Medical
  • 309Cardiac Arrhythmia and Conduction Disorders with CC
    MDC 05 · Medical
  • 310Cardiac Arrhythmia and Conduction Disorders without CC/MCC
    MDC 05 · Medical
  • 311Angina Pectoris
    MDC 05 · Medical
  • 312Syncope and Collapse
    MDC 05 · Medical
  • 313Chest Pain
    MDC 05 · Medical
  • 314Other Circulatory System Diagnoses with MCC
    MDC 05 · Medical
  • 315Other Circulatory System Diagnoses with CC
    MDC 05 · Medical
  • 316Other Circulatory System Diagnoses without CC/MCC
    MDC 05 · Medical
  • 317Concomitant Left Atrial Appendage Closure and Cardiac Ablation
    MDC 05 · Surgical
  • 318Percutaneous Coronary Atherectomy without Intraluminal Device
    MDC 05 · Surgical
  • 325Coronary Intravascular Lithotripsy without Intraluminal Device
    MDC 05 · Surgical
  • 368Major Esophageal Disorders with MCC
    MDC 06 · Medical
  • 369Major Esophageal Disorders with CC
    MDC 06 · Medical
  • 370Major Esophageal Disorders without CC/MCC
    MDC 06 · Medical
  • 371Major Gastrointestinal Disorders and Peritoneal Infections with MCC
    MDC 06 · Medical
  • 372Major Gastrointestinal Disorders and Peritoneal Infections with CC
    MDC 06 · Medical
  • 373Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC
    MDC 06 · Medical
  • 374Digestive Malignancy with MCC
    MDC 06 · Medical
  • 375Digestive Malignancy with CC
    MDC 06 · Medical
  • 376Digestive Malignancy without CC/MCC
    MDC 06 · Medical
  • 377Gastrointestinal Hemorrhage with MCC
    MDC 06 · Medical
  • 378Gastrointestinal Hemorrhage with CC
    MDC 06 · Medical
  • 379Gastrointestinal Hemorrhage without CC/MCC
    MDC 06 · Medical
  • 380Complicated Peptic Ulcer with MCC
    MDC 06 · Medical
  • 381Complicated Peptic Ulcer with CC
    MDC 06 · Medical
  • 382Complicated Peptic Ulcer without CC/MCC
    MDC 06 · Medical
  • 383Uncomplicated Peptic Ulcer with MCC
    MDC 06 · Medical
  • 384Uncomplicated Peptic Ulcer without MCC
    MDC 06 · Medical
  • 385Inflammatory Bowel Disease with MCC
    MDC 06 · Medical
  • 386Inflammatory Bowel Disease with CC
    MDC 06 · Medical
  • 387Inflammatory Bowel Disease without CC/MCC
    MDC 06 · Medical
  • 388Gastrointestinal Obstruction with MCC
    MDC 06 · Medical
  • 389Gastrointestinal Obstruction with CC
    MDC 06 · Medical
  • 390Gastrointestinal Obstruction without CC/MCC
    MDC 06 · Medical
  • 391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC
    MDC 06 · Medical
  • 392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC
    MDC 06 · Medical
  • 393Other Digestive System Diagnoses with MCC
    MDC 06 · Medical
  • 394Other Digestive System Diagnoses with CC
    MDC 06 · Medical
  • 395Other Digestive System Diagnoses without CC/MCC
    MDC 06 · Medical
  • 402Single Level Combined Anterior and Posterior Spinal Fusion Except Cervical
    MDC 08 · Surgical
  • 432Cirrhosis and Alcoholic Hepatitis with MCC
    MDC 07 · Medical
  • 433Cirrhosis and Alcoholic Hepatitis with CC
    MDC 07 · Medical
  • 434Cirrhosis and Alcoholic Hepatitis without CC/MCC
    MDC 07 · Medical
  • 435Malignancy of Hepatobiliary System or Pancreas with MCC
    MDC 07 · Medical
  • 436Malignancy of Hepatobiliary System or Pancreas with CC
    MDC 07 · Medical
  • 437Malignancy of Hepatobiliary System or Pancreas without CC/MCC
    MDC 07 · Medical
  • 438Disorders of Pancreas Except Malignancy with MCC
    MDC 07 · Medical
  • 439Disorders of Pancreas Except Malignancy with CC
    MDC 07 · Medical
  • 440Disorders of Pancreas Except Malignancy without CC/MCC
    MDC 07 · Medical
  • 441Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC
    MDC 07 · Medical
  • 442Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC
    MDC 07 · Medical
  • 443Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC
    MDC 07 · Medical
  • 444Disorders of the Biliary Tract with MCC
    MDC 07 · Medical
  • 445Disorders of the Biliary Tract with CC
    MDC 07 · Medical
  • 446Disorders of the Biliary Tract without CC/MCC
    MDC 07 · Medical
  • 456Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with MCC
    MDC 08 · Surgical
  • 457Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with CC
    MDC 08 · Surgical
  • 458Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC
    MDC 08 · Surgical
  • 483Major Joint or Limb Reattachment Procedures of Upper Extremities
    MDC 08 · Surgical
  • 485Knee Procedures with Principal Diagnosis of Infection with MCC
    MDC 08 · Surgical
  • 486Knee Procedures with Principal Diagnosis of Infection with CC
    MDC 08 · Surgical
  • 487Knee Procedures with Principal Diagnosis of Infection without CC/MCC
    MDC 08 · Surgical
  • 506Major Thumb or Joint Procedures
    MDC 08 · Surgical
  • 518Back and Neck Procedures Except Spinal Fusion with MCC or Disc Device or Neurostimulator
    MDC 08 · Surgical
  • 521Hip Replacement with Principal Diagnosis of Hip Fracture with MCC
    MDC 08 · Surgical
  • 522Hip Replacement with Principal Diagnosis of Hip Fracture without MCC
    MDC 08 · Surgical
  • 533Fractures of Femur with MCC
    MDC 08 · Medical
  • 534Fractures of Femur without MCC
    MDC 08 · Medical
  • 535Fractures of Hip and Pelvis with MCC
    MDC 08 · Medical
  • 536Fractures of Hip and Pelvis without MCC
    MDC 08 · Medical
  • 537Sprains, Strains, and Dislocations of Hip, Pelvis and Thigh with CC/MCC
    MDC 08 · Medical
  • 538Sprains, Strains, and Dislocations of Hip, Pelvis and Thigh without CC/MCC
    MDC 08 · Medical
  • 539Osteomyelitis with MCC
    MDC 08 · Medical
  • 540Osteomyelitis with CC
    MDC 08 · Medical
  • 541Osteomyelitis without CC/MCC
    MDC 08 · Medical
  • 542Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with MCC
    MDC 08 · Medical
  • 543Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with CC
    MDC 08 · Medical
  • 544Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy without CC/MCC
    MDC 08 · Medical
  • 545Connective Tissue Disorders with MCC
    MDC 08 · Medical
  • 546Connective Tissue Disorders with CC
    MDC 08 · Medical
  • 547Connective Tissue Disorders without CC/MCC
    MDC 08 · Medical
  • 548Septic Arthritis with MCC
    MDC 08 · Medical
  • 549Septic Arthritis with CC
    MDC 08 · Medical
  • 550Septic Arthritis without CC/MCC
    MDC 08 · Medical
  • 551Medical Back Problems with MCC
    MDC 08 · Medical
  • 552Medical Back Problems without MCC
    MDC 08 · Medical
  • 553Bone Diseases and Arthropathies with MCC
    MDC 08 · Medical