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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-04

• CC = Complication or Comorbidity
• MCC = Major Complication or Comorbidity

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

  • DRG 163 - MAJOR CHEST PROCEDURES WITH MCC
  • DRG 164 - MAJOR CHEST PROCEDURES WITH CC
  • DRG 165 - MAJOR CHEST PROCEDURES WITHOUT CC/MCC
  • DRG 166 - OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITH MCC
  • DRG 167 - OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITH CC
  • DRG 168 - OTHER RESPIRATORY SYSTEM O.R. PROCEDURES WITHOUT CC/MCC

• Medical - Principal Diagnosis

  • DRG 175 - PULMONARY EMBOLISM WITH MCC
  • DRG 176 - PULMONARY EMBOLISM WITHOUT MCC
  • DRG 177 - RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH MCC
  • DRG 178 - RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH CC
  • DRG 179 - RESPIRATORY INFECTIONS AND INFLAMMATIONS WITHOUT CC/MCC
  • DRG 180 - RESPIRATORY NEOPLASMS WITH MCC
  • DRG 181 - RESPIRATORY NEOPLASMS WITH CC
  • DRG 182 - RESPIRATORY NEOPLASMS WITHOUT CC/MCC
  • DRG 183 - MAJOR CHEST TRAUMA WITH MCC
  • DRG 184 - MAJOR CHEST TRAUMA WITH CC
  • DRG 185 - MAJOR CHEST TRAUMA WITHOUT CC/MCC
  • DRG 186 - PLEURAL EFFUSION WITH MCC
  • DRG 187 - PLEURAL EFFUSION WITH CC
  • DRG 188 - PLEURAL EFFUSION WITHOUT CC/MCC
  • DRG 189 - PULMONARY EDEMA AND RESPIRATORY FAILURE
  • DRG 190 - CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITH MCC
  • DRG 191 - CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITH CC
  • DRG 192 - CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITHOUT CC/MCC
  • DRG 193 - SIMPLE PNEUMONIA AND PLEURISY WITH MCC
  • DRG 194 - SIMPLE PNEUMONIA AND PLEURISY WITH CC
  • DRG 195 - SIMPLE PNEUMONIA AND PLEURISY WITHOUT CC/MCC
  • DRG 196 - INTERSTITIAL LUNG DISEASE WITH MCC
  • DRG 197 - INTERSTITIAL LUNG DISEASE WITH CC
  • DRG 198 - INTERSTITIAL LUNG DISEASE WITHOUT CC/MCC
  • DRG 199 - PNEUMOTHORAX WITH MCC
  • DRG 200 - PNEUMOTHORAX WITH CC
  • DRG 201 - PNEUMOTHORAX WITHOUT CC/MCC
  • DRG 202 - BRONCHITIS AND ASTHMA WITH CC/MCC
  • DRG 203 - BRONCHITIS AND ASTHMA WITHOUT CC/MCC
  • DRG 204 - RESPIRATORY SIGNS AND SYMPTOMS
  • DRG 205 - OTHER RESPIRATORY SYSTEM DIAGNOSES WITH MCC
  • DRG 206 - OTHER RESPIRATORY SYSTEM DIAGNOSES WITHOUT MCC
  • DRG 207 - RESPIRATORY SYSTEM DIAGNOSIS WITH VENTILATOR SUPPORT >96 HOURS OR PERIPHERAL EXTRACORPOREAL MEMBRANE OXYGENATION (ECMO)
  • DRG 208 - RESPIRATORY SYSTEM DIAGNOSIS WITH VENTILATOR SUPPORT <= 96 HOURS