ICD-10 MS-DRG v42 (2025)

Medicare Severity Diagnosis Related Group

MDC 01: DISEASES & DISORDERS OF THE NERVOUS SYSTEM

ICD10CM Code Assignment

Surgical DRGs

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

If the Principal Diagnosis designated a DRG should be selected from this MDC, AND an O.R. (Operating Room) procedure was performed but does not match the Surgical DRGs listed above, see the Unrelated Operating Room Procedures DRGs.


Medical DRGs

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