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MDC-01
Diseases & Disorders of the Nervous System

Within each MDC are MS-DRGs (Medicare Severity Diagnosis Related Groups). Each of the Medicare Severity Diagnosis Related Groups is defined by a particular set of patient attributes which include principal diagnosis, specific secondary diagnoses, procedures, sex and discharge status.

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-01

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

    • DRG 020 - INTRACRANIAL VASCULAR PROCEDURES WITH PDX HEMORRHAGE WITH MCC
    • DRG 021 - INTRACRANIAL VASCULAR PROCEDURES WITH PDX HEMORRHAGE WITH CC
    • DRG 022 - INTRACRANIAL VASCULAR PROCEDURES WITH PDX HEMORRHAGE WITHOUT CC/MCC
    • DRG 023 - CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PDX WITH MCC OR CHEMOTHERAPY IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR
    • DRG 024 - CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PDX WITHOUT MCC
    • DRG 025 - CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH MCC
    • DRG 026 - CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH CC
    • DRG 027 - CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITHOUT CC/MCC
    • DRG 028 - SPINAL PROCEDURES WITH MCC
    • DRG 029 - SPINAL PROCEDURES WITH CC OR SPINAL NEUROSTIMULATORS
    • DRG 030 - SPINAL PROCEDURES WITHOUT CC/MCC
    • DRG 031 - VENTRICULAR SHUNT PROCEDURES WITH MCC
    • DRG 032 - VENTRICULAR SHUNT PROCEDURES WITH CC
    • DRG 033 - VENTRICULAR SHUNT PROCEDURES WITHOUT CC/MCC
    • DRG 034 - CAROTID ARTERY STENT PROCEDURE WITH MCC
    • DRG 035 - CAROTID ARTERY STENT PROCEDURE WITH CC
    • DRG 036 - CAROTID ARTERY STENT PROCEDURE WITHOUT CC/MCC
    • DRG 037 - EXTRACRANIAL PROCEDURES WITH MCC
    • DRG 038 - EXTRACRANIAL PROCEDURES WITH CC
    • DRG 039 - EXTRACRANIAL PROCEDURES WITHOUT CC/MCC
    • DRG 040 - PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITH MCC
    • DRG 041 - PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITH CC OR PERIPHERAL NEUROSTIMULATOR
    • DRG 042 - PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITHOUT CC/MCC

    • DRG 052 - SPINAL DISORDERS AND INJURIES WITH CC/MCC
    • DRG 053 - SPINAL DISORDERS AND INJURIES WITHOUT CC/MCC
    • DRG 054 - NERVOUS SYSTEM NEOPLASMS WITH MCC
    • DRG 055 - NERVOUS SYSTEM NEOPLASMS WITHOUT MCC
    • DRG 056 - DEGENERATIVE NERVOUS SYSTEM DISORDERS WITH MCC
    • DRG 057 - DEGENERATIVE NERVOUS SYSTEM DISORDERS WITHOUT MCC
    • DRG 058 - MULTIPLE SCLEROSIS AND CEREBELLAR ATAXIA WITH MCC
    • DRG 059 - MULTIPLE SCLEROSIS AND CEREBELLAR ATAXIA WITH CC
    • DRG 060 - MULTIPLE SCLEROSIS AND CEREBELLAR ATAXIA WITHOUT CC/MCC
    • DRG 061 - ISCHEMIC STROKE, PRECEREBRAL OCCLUSION OR TRANSIENT ISCHEMIA WITH THROMBOLYTIC AGENT WITH MCC
    • DRG 062 - ISCHEMIC STROKE, PRECEREBRAL OCCLUSION OR TRANSIENT ISCHEMIA WITH THROMBOLYTIC AGENT WITH CC
    • DRG 063 - ISCHEMIC STROKE, PRECEREBRAL OCCLUSION OR TRANSIENT ISCHEMIA WITH THROMBOLYTIC AGENT WITHOUT CC/MCC
    • DRG 064 - INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH MCC
    • DRG 065 - INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH CC OR TPA IN 24 HOURS
    • DRG 066 - INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITHOUT CC/MCC
    • DRG 067 - NONSPECIFIC CVA AND PRECEREBRAL OCCLUSION WITHOUT INFARCTION WITH MCC
    • DRG 068 - NONSPECIFIC CVA AND PRECEREBRAL OCCLUSION WITHOUT INFARCTION WITHOUT MCC
    • DRG 069 - TRANSIENT ISCHEMIA WITHOUT THROMBOLYTIC
    • DRG 070 - NONSPECIFIC CEREBROVASCULAR DISORDERS WITH MCC
    • DRG 071 - NONSPECIFIC CEREBROVASCULAR DISORDERS WITH CC
    • DRG 072 - NONSPECIFIC CEREBROVASCULAR DISORDERS WITHOUT CC/MCC
    • DRG 073 - CRANIAL AND PERIPHERAL NERVE DISORDERS WITH MCC
    • DRG 074 - CRANIAL AND PERIPHERAL NERVE DISORDERS WITHOUT MCC
    • DRG 075 - VIRAL MENINGITIS WITH CC/MCC
    • DRG 076 - VIRAL MENINGITIS WITHOUT CC/MCC
    • DRG 077 - HYPERTENSIVE ENCEPHALOPATHY WITH MCC
    • DRG 078 - HYPERTENSIVE ENCEPHALOPATHY WITH CC
    • DRG 079 - HYPERTENSIVE ENCEPHALOPATHY WITHOUT CC/MCC
    • DRG 080 - NONTRAUMATIC STUPOR AND COMA WITH MCC
    • DRG 081 - NONTRAUMATIC STUPOR AND COMA WITHOUT MCC
    • DRG 082 - TRAUMATIC STUPOR AND COMA, COMA >1 HOUR WITH MCC
    • DRG 083 - TRAUMATIC STUPOR AND COMA, COMA >1 HOUR WITH CC
    • DRG 084 - TRAUMATIC STUPOR AND COMA, COMA >1 HOUR WITHOUT CC/MCC
    • DRG 085 - TRAUMATIC STUPOR AND COMA, COMA <1 HOUR WITH MCC
    • DRG 086 - TRAUMATIC STUPOR AND COMA, COMA <1 HOUR WITH CC
    • DRG 087 - TRAUMATIC STUPOR AND COMA, COMA <1 HOUR WITHOUT CC/MCC
    • DRG 088 - CONCUSSION WITH MCC
    • DRG 089 - CONCUSSION WITH CC
    • DRG 090 - CONCUSSION WITHOUT CC/MCC
    • DRG 091 - OTHER DISORDERS OF NERVOUS SYSTEM WITH MCC
    • DRG 092 - OTHER DISORDERS OF NERVOUS SYSTEM WITH CC
    • DRG 093 - OTHER DISORDERS OF NERVOUS SYSTEM WITHOUT CC/MCC
    • DRG 094 - BACTERIAL AND TUBERCULOUS INFECTIONS OF NERVOUS SYSTEM WITH MCC
    • DRG 095 - BACTERIAL AND TUBERCULOUS INFECTIONS OF NERVOUS SYSTEM WITH CC
    • DRG 096 - BACTERIAL AND TUBERCULOUS INFECTIONS OF NERVOUS SYSTEM WITHOUT CC/MCC
    • DRG 097 - NON-BACTERIAL INFECTION OF NERVOUS SYSTEM EXCEPT VIRAL MENINGITIS WITH MCC
    • DRG 098 - NON-BACTERIAL INFECTION OF NERVOUS SYSTEM EXCEPT VIRAL MENINGITIS WITH CC
    • DRG 099 - NON-BACTERIAL INFECTION OF NERVOUS SYSTEM EXCEPT VIRAL MENINGITIS WITHOUT CC/MCC
    • DRG 100 - SEIZURES WITH MCC
    • DRG 101 - SEIZURES WITHOUT MCC
    • DRG 102 - HEADACHES WITH MCC
    • DRG 103 - HEADACHES WITHOUT MCC