MS-DRG Directory · FY 2026

DRG Codes 2026

Q: 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.

Q: What is a 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.

Find the MS-DRG for any condition or procedure. Search by clinical term (e.g. pneumonia, cholecystectomy, heart failure) or DRG number. Open any DRG to see linked ICD-10-CM diagnosis codes and a full clinical description.

Total DRGs

745

Medical

364

Surgical

381

MDCs

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 745 DRGs

156Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC
MDC 03 · Medical
157Dental and Oral Diseases with MCC
MDC 03 · Medical
158Dental and Oral Diseases with CC
MDC 03 · Medical
159Dental and Oral Diseases without CC/MCC
MDC 03 · Medical
163Major Chest Procedures with MCC
MDC 04 · Surgical
164Major Chest Procedures with CC
MDC 04 · Surgical
165Major Chest Procedures without CC/MCC
MDC 04 · Surgical
166Other Respiratory System O.R. Procedures with MCC
MDC 04 · Surgical
167Other Respiratory System O.R. Procedures with CC
MDC 04 · Surgical
168Other Respiratory System O.R. Procedures without CC/MCC
MDC 04 · Surgical
173Ultrasound Accelerated and Other Thrombolysis with Principal Diagnosis Pulmonary Embolism
MDC 04 · Surgical
175Pulmonary Embolism with MCC or Acute Cor Pulmonale
MDC 04 · Medical
176Pulmonary Embolism without MCC
MDC 04 · Medical
177Respiratory Infections and Inflammations with MCC
MDC 04 · Medical
178Respiratory Infections and Inflammations with CC
MDC 04 · Medical
179Respiratory Infections and Inflammations without CC/MCC
MDC 04 · Medical
180Respiratory Neoplasms with MCC
MDC 04 · Medical
181Respiratory Neoplasms with CC
MDC 04 · Medical
182Respiratory Neoplasms without CC/MCC
MDC 04 · Medical
183Major Chest Trauma with MCC
MDC 04 · Medical
184Major Chest Trauma with CC
MDC 04 · Medical
185Major Chest Trauma without CC/MCC
MDC 04 · Medical
186Pleural Effusion with MCC
MDC 04 · Medical
187Pleural Effusion with CC
MDC 04 · Medical
188Pleural Effusion without CC/MCC
MDC 04 · Medical
189Pulmonary Edema and Respiratory Failure
MDC 04 · Medical
190Chronic Obstructive Pulmonary Disease with MCC
MDC 04 · Medical
191Chronic Obstructive Pulmonary Disease with CC
MDC 04 · Medical
192Chronic Obstructive Pulmonary Disease without CC/MCC
MDC 04 · Medical
193Simple Pneumonia and Pleurisy with MCC
MDC 04 · Medical
194Simple Pneumonia and Pleurisy with CC
MDC 04 · Medical
195Simple Pneumonia and Pleurisy without CC/MCC
MDC 04 · Medical
196Interstitial Lung Disease with MCC
MDC 04 · Medical
197Interstitial Lung Disease with CC
MDC 04 · Medical
198Interstitial Lung Disease without CC/MCC
MDC 04 · Medical
199Pneumothorax with MCC
MDC 04 · Medical
200Pneumothorax with CC
MDC 04 · Medical
201Pneumothorax without CC/MCC
MDC 04 · Medical
202Bronchitis and Asthma with CC/MCC
MDC 04 · Medical
203Bronchitis and Asthma without CC/MCC
MDC 04 · Medical
204Respiratory Signs and Symptoms
MDC 04 · Medical
205Other Respiratory System Diagnoses with MCC
MDC 04 · Medical
206Other Respiratory System Diagnoses without MCC
MDC 04 · Medical
207Respiratory System Diagnosis with Ventilator Support >96 Hours
MDC 04 · Medical
208Respiratory System Diagnosis with Ventilator Support <=96 Hours
MDC 04 · Medical
209Complex Aortic Arch Procedures
MDC 05 · Surgical
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
219Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization with MCC
MDC 05 · Surgical
220Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization with CC
MDC 05 · Surgical
221Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization without CC/MCC
MDC 05 · Surgical
228Other Cardiothoracic Procedures with MCC
MDC 05 · Surgical
229Other Cardiothoracic Procedures without MCC
MDC 05 · Surgical
235Coronary Bypass without Cardiac Catheterization with MCC
MDC 05 · Surgical
236Coronary Bypass without Cardiac Catheterization without MCC
MDC 05 · Surgical
239Amputation for Circulatory System Disorders Except Upper Limb and Toe with MCC
MDC 05 · Surgical
240Amputation for Circulatory System Disorders Except Upper Limb and Toe with CC
MDC 05 · Surgical
241Amputation for Circulatory System Disorders Except Upper Limb and Toe without CC/MCC
MDC 05 · Surgical
242Permanent Cardiac Pacemaker Implant with MCC
MDC 05 · Surgical
243Permanent Cardiac Pacemaker Implant with CC
MDC 05 · Surgical
244Permanent Cardiac Pacemaker Implant without CC/MCC
MDC 05 · Surgical
245AICD Generator Procedures
MDC 05 · Surgical
250Percutaneous Cardiovascular Procedures without Intraluminal Device with MCC
MDC 05 · Surgical
251Percutaneous Cardiovascular Procedures without Intraluminal Device without MCC
MDC 05 · Surgical
252Other Vascular Procedures with MCC
MDC 05 · Surgical
253Other Vascular Procedures with CC
MDC 05 · Surgical
254Other Vascular Procedures without CC/MCC
MDC 05 · Surgical
255Upper Limb and Toe Amputation for Circulatory System Disorders with MCC
MDC 05 · Surgical
256Upper Limb and Toe Amputation for Circulatory System Disorders with CC
MDC 05 · Surgical
257Upper Limb and Toe Amputation for Circulatory System Disorders without CC/MCC
MDC 05 · Surgical
260Cardiac Pacemaker Revision Except Device Replacement with MCC
MDC 05 · Surgical
261Cardiac Pacemaker Revision Except Device Replacement with CC
MDC 05 · Surgical
262Cardiac Pacemaker Revision Except Device Replacement without CC/MCC
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
266Endovascular Cardiac Valve Replacement and Supplement Procedures with MCC
MDC 05 · Surgical
267Endovascular Cardiac Valve Replacement and Supplement Procedures without MCC
MDC 05 · Surgical
268Aortic and Heart Assist Procedures Except Pulsation Balloon with MCC
MDC 05 · Surgical
269Aortic and Heart Assist Procedures Except Pulsation Balloon without MCC
MDC 05 · Surgical
270Other Major Cardiovascular Procedures with MCC
MDC 05 · Surgical
271Other Major Cardiovascular Procedures with CC
MDC 05 · Surgical
272Other Major Cardiovascular Procedures without CC/MCC
MDC 05 · Surgical
273Percutaneous and Other Intracardiac Procedures with MCC
MDC 05 · Surgical
274Percutaneous and Other Intracardiac Procedures without MCC
MDC 05 · Surgical
275Cardiac Defibrillator Implant with Cardiac Catheterization and MCC
MDC 05 · Surgical
276Cardiac Defibrillator Implant with MCC or Carotid Sinus Neurostimulator
MDC 05 · Surgical
277Cardiac Defibrillator Implant without MCC
MDC 05 · Surgical
278Ultrasound Accelerated and Other Thrombolysis of Peripheral Vascular Structures with MCC
MDC 05 · Surgical
279Ultrasound Accelerated and Other Thrombolysis of Peripheral Vascular Structures without 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
286Circulatory Disorders Except AMI, with Cardiac Catheterization with MCC
MDC 05 · Medical
287Circulatory Disorders Except AMI, with Cardiac Catheterization without 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