NEVVI Medicare utilization intelligence
CMS MS-DRG · Major Diagnostic Category

Browse Medicare inpatient DRGs

Hospital inpatient stays, classified the way CMS's MS-DRG system groups them — Major Diagnostic Category, then DRG. Open any DRG for its national market.

767 DRGs across 24 Major Diagnostic Categories · FY2024 (Oct–Sep) Medicare fee-for-service Part A

05 · Diseases and disorders of the circulatory system 1,415,523 discharges · 98 DRGs › 18 · Infectious and parasitic diseases, systemic or unspecified sites 865,018 discharges · 17 DRGs › 04 · Diseases and disorders of the respiratory system 810,178 discharges · 41 DRGs › 08 · Diseases and disorders of the musculoskeletal system and connective tissue 757,955 discharges · 111 DRGs › 06 · Diseases and disorders of the digestive system 659,452 discharges · 58 DRGs › 01 · Diseases and disorders of the nervous system 606,944 discharges · 75 DRGs › 11 · Diseases and disorders of the kidney and urinary tract 580,245 discharges · 42 DRGs › 10 · Endocrine, nutritional and metabolic diseases and disorders 282,408 discharges · 26 DRGs › 07 · Diseases and disorders of the hepatobiliary system and pancreas 191,305 discharges · 36 DRGs › 09 · Diseases and disorders of the skin, subcutaneous tissue and breast 138,597 discharges · 32 DRGs › 16 · Diseases and disorders of blood, blood-forming organs and immunological disorders 103,743 discharges · 15 DRGs › 21 · Injuries, poisonings and toxic effects of drugs 82,767 discharges · 20 DRGs › 19 · Mental diseases and disorders 75,167 discharges · 9 DRGs › 17 · Myeloproliferative diseases and disorders, and poorly differentiated neoplasms 53,085 discharges · 28 DRGs › 03 · Diseases and disorders of the ear, nose, mouth and throat 44,223 discharges · 25 DRGs › 23 · Factors influencing health status and other contacts with health services 38,060 discharges · 10 DRGs › 20 · Alcohol/drug use and alcohol/drug-induced organic mental disorders 34,009 discharges · 4 DRGs › 13 · Diseases and disorders of the female reproductive system 23,946 discharges · 25 DRGs › 12 · Diseases and disorders of the male reproductive system 22,088 discharges · 21 DRGs › 24 · Multiple significant trauma 19,695 discharges · 8 DRGs › 02 · Diseases and disorders of the eye 10,163 discharges · 10 DRGs › 14 · Pregnancy, childbirth and the puerperium 6,570 discharges · 21 DRGs › 25 · Human immunodeficiency virus (HIV) infections 4,403 discharges · 6 DRGs › 22 · Burns 2,912 discharges · 6 DRGs › No MDC assigned 77,306 discharges · 23 DRGs ›
Major Diagnostic Category (MDC) is CMS's own top-level grouping of MS-DRGs. “No MDC assigned” combines CMS's pre-MDC set (transplants, ECMO, tracheostomy, CAR-T) and its ungroupable set (O.R. procedures unrelated to the principal diagnosis, invalid or ungroupable cases) — we list them, we don't invent a category. Discharges are counted stays reported to Medicare fee-for-service Part A (no Medicare Advantage), Maryland waiver-priced.