Major Diagnostic Category

  • MDC 00 - Pre-MDC
  • MDC 01 - Diseases & Disorders of the Nervous System
  • MDC 02 - Diseases & Disorders of the Eye
  • MDC 03 - Diseases & Disorders of the Ear, Nose, Mouth & Throat
  • MDC 04 - Diseases & Disorders of the Respiratory System
  • MDC 05 - Diseases & Disorders of the Circulatory System
  • MDC 06 - Diseases & Disorders of the Digestive System
  • MDC 07 - Diseases & Disorders of the Hepatobiliary System & Pancreas
  • MDC 08 - Diseases & Disorders of the Musculoskeletal System & Connective Tissue
  • MDC 09 - Diseases & Disorders of the Skin, Subcutaneous Tissue & Breast
  • MDC 10 - Endocrine, Nutritional & Metabolic Diseases & Disorders
  • MDC 11 - Diseases & Disorders of the Kidney & Urinary Tract
  • MDC 12 - Diseases & Disorders of the Male Reproductive System
  • MDC 13 - Diseases & Disorders of the Female Reproductive System
  • MDC 14 - Pregnancy, Childbirth & the Puerperium
  • MDC 15 - Newborns & Other Neonates with Conditions Originating in Perinatal Period
  • MDC 16 - Diseases & Disorders of Blood, Blood Forming Organs, Immunologic Disorders
  • MDC 17 - Myeloproliferative Diseases & Disorders, Poorly Differentiated Neoplasms
  • MDC 18 - Infectious & Parasitic Diseases, Systemic or Unspecified Sites
  • MDC 19 - Mental Diseases & Disorders
  • MDC 20 - Alcohol/Drug Use & Alcohol/Drug Induced Organic Mental Disorders
  • MDC 21 - Injuries, Poisonings & Toxic Effects of Drugs
  • MDC 22 - Burns
  • MDC 23 - Factors Influencing Health Status & Other Contacts with Health Services
  • MDC 24 - Multiple Significant Trauma
  • MDC 25 - Human Immunodeficiency Virus Infections
  • MDC 99 - Other

Medicare Severity Diagnosis Related Groups (MS-DRG) for MDC-18

  • CC = Complication or Comorbidity
  • MCC = Major Complication or Comorbidity
    • DRG 862 - POSTOPERATIVE AND POST-TRAUMATIC INFECTIONS WITH MCC
    • DRG 863 - POSTOPERATIVE AND POST-TRAUMATIC INFECTIONS WITHOUT MCC
    • DRG 864 - FEVER AND INFLAMMATORY CONDITIONS
    • DRG 865 - VIRAL ILLNESS WITH MCC
    • DRG 866 - VIRAL ILLNESS WITHOUT MCC
    • DRG 867 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC
    • DRG 868 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH CC
    • DRG 869 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITHOUT CC/MCC
    • DRG 871 - SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC
    • DRG 872 - SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC
    • DRG 853 - INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURE WITH MCC
    • DRG 854 - INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURE WITH CC
    • DRG 855 - INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURE WITHOUT CC/MCC
    • DRG 856 - POSTOPERATIVE OR POST-TRAUMATIC INFECTIONS WITH O.R. PROCEDURE WITH MCC
    • DRG 857 - POSTOPERATIVE OR POST-TRAUMATIC INFECTIONS WITH O.R. PROCEDURE WITH CC
    • DRG 858 - POSTOPERATIVE OR POST-TRAUMATIC INFECTIONS WITH O.R. PROCEDURE WITHOUT CC/MCC
    • DRG 870 - SEPTICEMIA OR SEVERE SEPSIS WITH MV >96 HOURS OR PERIPHERAL EXTRACORPOREAL MEMBRANE OXYGENATION (ECMO)