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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

• Surgical - Operating Room/Non-O.R. Procedures

  • 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

• Medical - Principal Diagnosis

  • 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

• Surgical - Operating Room/Non-O.R. Procedures

  • DRG 870 - SEPTICEMIA OR SEVERE SEPSIS WITH MV >96 HOURS OR PERIPHERAL EXTRACORPOREAL MEMBRANE OXYGENATION (ECMO)

• Medical - Principal Diagnosis

  • DRG 871 - SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC
  • DRG 872 - SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC