MS-DRG · FY 2026 v43.0
MS-DRG 56 – Degenerative Nervous System Disorders with MCC
A Medical DRG in MDC 01 (Diseases & Disorders of the Nervous System). Inpatient cases group to DRG 56 when the ICD-10-CM principal diagnosis is one of the 369 codes listed below and a secondary diagnosis on the major complication or comorbidity (MCC) list is present. Its FY 2026 relative weight is 2.3231 with a geometric mean length of stay of 5.7 days.
Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
2.3231
Relative Weight
5.7
Geometric Mean LOS (days)
9.1
Arithmetic Mean LOS (days)
369
Principal Diagnosis Codes
Severity family
DRG 56with MCCWeight 2.3231 · GMLOS 5.7 daysDRG 57without MCCWeight 1.2956 · GMLOS 3.8 days
How a case is assigned to DRG 56
The grouper first assigns the case to MDC 01 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here), then applies the severity split from secondary diagnoses: with MCC → 56; without MCC → 57.
ICD-10-CM
Principal Diagnosis Codes 369 codes · 28 categories
369 of 369 shown
A52 Late syphilis8 codes
A81 Atypical virus infections of central nervous system10 codes
- A81.00 Creutzfeldt-Jakob disease, unspecified
- A81.01 Variant Creutzfeldt-Jakob disease
- A81.09 Other Creutzfeldt-Jakob disease
- A81.1 Subacute sclerosing panencephalitis
- A81.2 Progressive multifocal leukoencephalopathy
- A81.81 Kuru
- A81.82 Gerstmann-Straussler-Scheinker syndrome
- A81.83 Fatal familial insomnia
- A81.89 Other atypical virus infections of central nervous system
- A81.9 Atypical virus infection of central nervous system, unspecified
E75 Disorders of sphingolipid metabolism and other lipid storage disorders14 codes
- E75.00 GM2 gangliosidosis, unspecified
- E75.01 Sandhoff disease
- E75.02 Tay-Sachs disease
- E75.09 Other GM2 gangliosidosis
- E75.10 Unspecified gangliosidosis
- E75.11 Mucolipidosis IV
- E75.19 Other gangliosidosis
- E75.23 Krabbe disease
- E75.25 Metachromatic leukodystrophy
- E75.26 Sulfatase deficiency
- E75.27 Pelizaeus-Merzbacher disease
- E75.28 Canavan disease
- E75.29 Other sphingolipidosis
- E75.4 Neuronal ceroid lipofuscinosis
F07 Personality and behavioral disorders due to known physiological condition1 code
- F07.89 Other personality and behavioral disorders due to known physiological condition
F48 Other nonpsychotic mental disorders1 code
- F48.2 Pseudobulbar affect
F84 Pervasive developmental disorders1 code
- F84.2 Rett's syndrome
G10 Huntington's disease1 code
- G10 Huntington's disease
G12 Spinal muscular atrophy and related syndromes11 codes
- G12.0 Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
- G12.1 Other inherited spinal muscular atrophy
- G12.20 Motor neuron disease, unspecified
- G12.21 Amyotrophic lateral sclerosis
- G12.22 Progressive bulbar palsy
- G12.23 Primary lateral sclerosis
- G12.24 Familial motor neuron disease
- G12.25 Progressive spinal muscle atrophy
- G12.29 Other motor neuron disease
- G12.8 Other spinal muscular atrophies and related syndromes
- G12.9 Spinal muscular atrophy, unspecified
G13 Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere2 codes
G20 Parkinson's disease5 codes
- G20.A1 Parkinson's disease without dyskinesia, without mention of fluctuations
- G20.A2 Parkinson's disease without dyskinesia, with fluctuations
- G20.B1 Parkinson's disease with dyskinesia, without mention of fluctuations
- G20.B2 Parkinson's disease with dyskinesia, with fluctuations
- G20.C Parkinsonism, unspecified
G21 Secondary parkinsonism7 codes
G23 Other degenerative diseases of basal ganglia6 codes
- G23.0 Hallervorden-Spatz disease
- G23.1 Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
- G23.2 Striatonigral degeneration
- G23.3 Hypomyelination with atrophy of the basal ganglia and cerebellum
- G23.8 Other specified degenerative diseases of basal ganglia
- G23.9 Degenerative disease of basal ganglia, unspecified
G24 Dystonia1 code
- G24.1 Genetic torsion dystonia
G25 Other extrapyramidal and movement disorders8 codes
- G25.4 Drug-induced chorea
- G25.5 Other chorea
- G25.70 Drug induced movement disorder, unspecified
- G25.71 Drug induced akathisia
- G25.79 Other drug induced movement disorders
- G25.81 Restless legs syndrome
- G25.89 Other specified extrapyramidal and movement disorders
- G25.9 Extrapyramidal and movement disorder, unspecified
G26 Extrapyramidal and movement disorders in diseases classified elsewhere1 code
- G26 Extrapyramidal and movement disorders in diseases classified elsewhere
G30 Alzheimer's disease4 codes
G31 Other degenerative diseases of nervous system, not elsewhere classified14 codes
- G31.01 Pick's disease
- G31.09 Other frontotemporal neurocognitive disorder
- G31.1 Senile degeneration of brain, not elsewhere classified
- G31.2 Degeneration of nervous system due to alcohol
- G31.80 Leukodystrophy, unspecified
- G31.81 Alpers disease
- G31.82 Leigh's disease
- G31.83 Neurocognitive disorder with Lewy bodies
- G31.84 Mild cognitive impairment of uncertain or unknown etiology
- G31.85 Corticobasal degeneration
- G31.86 Alexander disease
- G31.87 Primary progressive apraxia of speech
- G31.89 Other specified degenerative diseases of nervous system
- G31.9 Degenerative disease of nervous system, unspecified
G70 Myasthenia gravis and other myoneural disorders4 codes
G73 Disorders of myoneural junction and muscle in diseases classified elsewhere2 codes
G80 Cerebral palsy1 code
- G80.3 Athetoid cerebral palsy
G81 Hemiplegia and hemiparesis15 codes
- G81.00 Flaccid hemiplegia affecting unspecified side
- G81.01 Flaccid hemiplegia affecting right dominant side
- G81.02 Flaccid hemiplegia affecting left dominant side
- G81.03 Flaccid hemiplegia affecting right nondominant side
- G81.04 Flaccid hemiplegia affecting left nondominant side
- G81.10 Spastic hemiplegia affecting unspecified side
- G81.11 Spastic hemiplegia affecting right dominant side
- G81.12 Spastic hemiplegia affecting left dominant side
- G81.13 Spastic hemiplegia affecting right nondominant side
- G81.14 Spastic hemiplegia affecting left nondominant side
- G81.90 Hemiplegia, unspecified affecting unspecified side
- G81.91 Hemiplegia, unspecified affecting right dominant side
- G81.92 Hemiplegia, unspecified affecting left dominant side
- G81.93 Hemiplegia, unspecified affecting right nondominant side
- G81.94 Hemiplegia, unspecified affecting left nondominant side
G90 Disorders of autonomic nervous system1 code
- G90.3 Multi-system degeneration of the autonomic nervous system
G91 Hydrocephalus7 codes
G94 Other disorders of brain in diseases classified elsewhere1 code
- G94 Other disorders of brain in diseases classified elsewhere
G95 Other and unspecified diseases of spinal cord1 code
- G95.0 Syringomyelia and syringobulbia
H57 Other disorders of eye and adnexa1 code
- H57.01 Argyll Robertson pupil, atypical
I67 Other cerebrovascular diseases1 code
- I67.3 Progressive vascular leukoencephalopathy
I69 Sequelae of cerebrovascular disease240 codes
- I69.00 Unspecified sequelae of nontraumatic subarachnoid hemorrhage
- I69.010 Attention and concentration deficit following nontraumatic subarachnoid hemorrhage
- I69.011 Memory deficit following nontraumatic subarachnoid hemorrhage
- I69.012 Visuospatial deficit and spatial neglect following nontraumatic subarachnoid hemorrhage
- I69.013 Psychomotor deficit following nontraumatic subarachnoid hemorrhage
- I69.014 Frontal lobe and executive function deficit following nontraumatic subarachnoid hemorrhage
- I69.015 Cognitive social or emotional deficit following nontraumatic subarachnoid hemorrhage
- I69.018 Other symptoms and signs involving cognitive functions following nontraumatic subarachnoid hemorrhage
- I69.019 Unspecified symptoms and signs involving cognitive functions following nontraumatic subarachnoid hemorrhage
- I69.020 Aphasia following nontraumatic subarachnoid hemorrhage
- I69.021 Dysphasia following nontraumatic subarachnoid hemorrhage
- I69.022 Dysarthria following nontraumatic subarachnoid hemorrhage
- I69.023 Fluency disorder following nontraumatic subarachnoid hemorrhage
- I69.028 Other speech and language deficits following nontraumatic subarachnoid hemorrhage
- I69.031 Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting right dominant side
- I69.032 Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting left dominant side
- I69.033 Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting right non-dominant side
- I69.034 Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting left non-dominant side
- I69.039 Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage affecting unspecified side
- I69.041 Monoplegia of lower limb following nontraumatic subarachnoid hemorrhage affecting right dominant side
- I69.042 Monoplegia of lower limb following nontraumatic subarachnoid hemorrhage affecting left dominant side
- I69.043 Monoplegia of lower limb following nontraumatic subarachnoid hemorrhage affecting right non-dominant side
- I69.044 Monoplegia of lower limb following nontraumatic subarachnoid hemorrhage affecting left non-dominant side
- I69.049 Monoplegia of lower limb following nontraumatic subarachnoid hemorrhage affecting unspecified side
- I69.051 Hemiplegia and hemiparesis following nontraumatic subarachnoid hemorrhage affecting right dominant side
- I69.052 Hemiplegia and hemiparesis following nontraumatic subarachnoid hemorrhage affecting left dominant side
- I69.053 Hemiplegia and hemiparesis following nontraumatic subarachnoid hemorrhage affecting right non-dominant side
- I69.054 Hemiplegia and hemiparesis following nontraumatic subarachnoid hemorrhage affecting left non-dominant side
- I69.059 Hemiplegia and hemiparesis following nontraumatic subarachnoid hemorrhage affecting unspecified side
- I69.061 Other paralytic syndrome following nontraumatic subarachnoid hemorrhage affecting right dominant side
- I69.062 Other paralytic syndrome following nontraumatic subarachnoid hemorrhage affecting left dominant side
- I69.063 Other paralytic syndrome following nontraumatic subarachnoid hemorrhage affecting right non-dominant side
- I69.064 Other paralytic syndrome following nontraumatic subarachnoid hemorrhage affecting left non-dominant side
- I69.065 Other paralytic syndrome following nontraumatic subarachnoid hemorrhage, bilateral
- I69.069 Other paralytic syndrome following nontraumatic subarachnoid hemorrhage affecting unspecified side
- I69.090 Apraxia following nontraumatic subarachnoid hemorrhage
- I69.091 Dysphagia following nontraumatic subarachnoid hemorrhage
- I69.092 Facial weakness following nontraumatic subarachnoid hemorrhage
- I69.093 Ataxia following nontraumatic subarachnoid hemorrhage
- I69.098 Other sequelae following nontraumatic subarachnoid hemorrhage
- I69.10 Unspecified sequelae of nontraumatic intracerebral hemorrhage
- I69.110 Attention and concentration deficit following nontraumatic intracerebral hemorrhage
- I69.111 Memory deficit following nontraumatic intracerebral hemorrhage
- I69.112 Visuospatial deficit and spatial neglect following nontraumatic intracerebral hemorrhage
- I69.113 Psychomotor deficit following nontraumatic intracerebral hemorrhage
- I69.114 Frontal lobe and executive function deficit following nontraumatic intracerebral hemorrhage
- I69.115 Cognitive social or emotional deficit following nontraumatic intracerebral hemorrhage
- I69.118 Other symptoms and signs involving cognitive functions following nontraumatic intracerebral hemorrhage
- I69.119 Unspecified symptoms and signs involving cognitive functions following nontraumatic intracerebral hemorrhage
- I69.120 Aphasia following nontraumatic intracerebral hemorrhage
- I69.121 Dysphasia following nontraumatic intracerebral hemorrhage
- I69.122 Dysarthria following nontraumatic intracerebral hemorrhage
- I69.123 Fluency disorder following nontraumatic intracerebral hemorrhage
- I69.128 Other speech and language deficits following nontraumatic intracerebral hemorrhage
- I69.131 Monoplegia of upper limb following nontraumatic intracerebral hemorrhage affecting right dominant side
- I69.132 Monoplegia of upper limb following nontraumatic intracerebral hemorrhage affecting left dominant side
- I69.133 Monoplegia of upper limb following nontraumatic intracerebral hemorrhage affecting right non-dominant side
- I69.134 Monoplegia of upper limb following nontraumatic intracerebral hemorrhage affecting left non-dominant side
- I69.139 Monoplegia of upper limb following nontraumatic intracerebral hemorrhage affecting unspecified side
- I69.141 Monoplegia of lower limb following nontraumatic intracerebral hemorrhage affecting right dominant side
- I69.142 Monoplegia of lower limb following nontraumatic intracerebral hemorrhage affecting left dominant side
- I69.143 Monoplegia of lower limb following nontraumatic intracerebral hemorrhage affecting right non-dominant side
- I69.144 Monoplegia of lower limb following nontraumatic intracerebral hemorrhage affecting left non-dominant side
- I69.149 Monoplegia of lower limb following nontraumatic intracerebral hemorrhage affecting unspecified side
- I69.151 Hemiplegia and hemiparesis following nontraumatic intracerebral hemorrhage affecting right dominant side
- I69.152 Hemiplegia and hemiparesis following nontraumatic intracerebral hemorrhage affecting left dominant side
- I69.153 Hemiplegia and hemiparesis following nontraumatic intracerebral hemorrhage affecting right non-dominant side
- I69.154 Hemiplegia and hemiparesis following nontraumatic intracerebral hemorrhage affecting left non-dominant side
- I69.159 Hemiplegia and hemiparesis following nontraumatic intracerebral hemorrhage affecting unspecified side
- I69.161 Other paralytic syndrome following nontraumatic intracerebral hemorrhage affecting right dominant side
- I69.162 Other paralytic syndrome following nontraumatic intracerebral hemorrhage affecting left dominant side
- I69.163 Other paralytic syndrome following nontraumatic intracerebral hemorrhage affecting right non-dominant side
- I69.164 Other paralytic syndrome following nontraumatic intracerebral hemorrhage affecting left non-dominant side
- I69.165 Other paralytic syndrome following nontraumatic intracerebral hemorrhage, bilateral
- I69.169 Other paralytic syndrome following nontraumatic intracerebral hemorrhage affecting unspecified side
- I69.190 Apraxia following nontraumatic intracerebral hemorrhage
- I69.191 Dysphagia following nontraumatic intracerebral hemorrhage
- I69.192 Facial weakness following nontraumatic intracerebral hemorrhage
- I69.193 Ataxia following nontraumatic intracerebral hemorrhage
- I69.198 Other sequelae of nontraumatic intracerebral hemorrhage
- I69.20 Unspecified sequelae of other nontraumatic intracranial hemorrhage
- I69.210 Attention and concentration deficit following other nontraumatic intracranial hemorrhage
- I69.211 Memory deficit following other nontraumatic intracranial hemorrhage
- I69.212 Visuospatial deficit and spatial neglect following other nontraumatic intracranial hemorrhage
- I69.213 Psychomotor deficit following other nontraumatic intracranial hemorrhage
- I69.214 Frontal lobe and executive function deficit following other nontraumatic intracranial hemorrhage
- I69.215 Cognitive social or emotional deficit following other nontraumatic intracranial hemorrhage
- I69.218 Other symptoms and signs involving cognitive functions following other nontraumatic intracranial hemorrhage
- I69.219 Unspecified symptoms and signs involving cognitive functions following other nontraumatic intracranial hemorrhage
- I69.220 Aphasia following other nontraumatic intracranial hemorrhage
- I69.221 Dysphasia following other nontraumatic intracranial hemorrhage
- I69.222 Dysarthria following other nontraumatic intracranial hemorrhage
- I69.223 Fluency disorder following other nontraumatic intracranial hemorrhage
- I69.228 Other speech and language deficits following other nontraumatic intracranial hemorrhage
- I69.231 Monoplegia of upper limb following other nontraumatic intracranial hemorrhage affecting right dominant side
- I69.232 Monoplegia of upper limb following other nontraumatic intracranial hemorrhage affecting left dominant side
- I69.233 Monoplegia of upper limb following other nontraumatic intracranial hemorrhage affecting right non-dominant side
- I69.234 Monoplegia of upper limb following other nontraumatic intracranial hemorrhage affecting left non-dominant side
- I69.239 Monoplegia of upper limb following other nontraumatic intracranial hemorrhage affecting unspecified side
- I69.241 Monoplegia of lower limb following other nontraumatic intracranial hemorrhage affecting right dominant side
- I69.242 Monoplegia of lower limb following other nontraumatic intracranial hemorrhage affecting left dominant side
- I69.243 Monoplegia of lower limb following other nontraumatic intracranial hemorrhage affecting right non-dominant side
- I69.244 Monoplegia of lower limb following other nontraumatic intracranial hemorrhage affecting left non-dominant side
- I69.249 Monoplegia of lower limb following other nontraumatic intracranial hemorrhage affecting unspecified side
- I69.251 Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting right dominant side
- I69.252 Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting left dominant side
- I69.253 Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting right non-dominant side
- I69.254 Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting left non-dominant side
- I69.259 Hemiplegia and hemiparesis following other nontraumatic intracranial hemorrhage affecting unspecified side
- I69.261 Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting right dominant side
- I69.262 Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting left dominant side
- I69.263 Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting right non-dominant side
- I69.264 Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting left non-dominant side
- I69.265 Other paralytic syndrome following other nontraumatic intracranial hemorrhage, bilateral
- I69.269 Other paralytic syndrome following other nontraumatic intracranial hemorrhage affecting unspecified side
- I69.290 Apraxia following other nontraumatic intracranial hemorrhage
- I69.291 Dysphagia following other nontraumatic intracranial hemorrhage
- I69.292 Facial weakness following other nontraumatic intracranial hemorrhage
- I69.293 Ataxia following other nontraumatic intracranial hemorrhage
- I69.298 Other sequelae of other nontraumatic intracranial hemorrhage
- I69.30 Unspecified sequelae of cerebral infarction
- I69.310 Attention and concentration deficit following cerebral infarction
- I69.311 Memory deficit following cerebral infarction
- I69.312 Visuospatial deficit and spatial neglect following cerebral infarction
- I69.313 Psychomotor deficit following cerebral infarction
- I69.314 Frontal lobe and executive function deficit following cerebral infarction
- I69.315 Cognitive social or emotional deficit following cerebral infarction
- I69.318 Other symptoms and signs involving cognitive functions following cerebral infarction
- I69.319 Unspecified symptoms and signs involving cognitive functions following cerebral infarction
- I69.320 Aphasia following cerebral infarction
- I69.321 Dysphasia following cerebral infarction
- I69.322 Dysarthria following cerebral infarction
- I69.323 Fluency disorder following cerebral infarction
- I69.328 Other speech and language deficits following cerebral infarction
- I69.331 Monoplegia of upper limb following cerebral infarction affecting right dominant side
- I69.332 Monoplegia of upper limb following cerebral infarction affecting left dominant side
- I69.333 Monoplegia of upper limb following cerebral infarction affecting right non-dominant side
- I69.334 Monoplegia of upper limb following cerebral infarction affecting left non-dominant side
- I69.339 Monoplegia of upper limb following cerebral infarction affecting unspecified side
- I69.341 Monoplegia of lower limb following cerebral infarction affecting right dominant side
- I69.342 Monoplegia of lower limb following cerebral infarction affecting left dominant side
- I69.343 Monoplegia of lower limb following cerebral infarction affecting right non-dominant side
- I69.344 Monoplegia of lower limb following cerebral infarction affecting left non-dominant side
- I69.349 Monoplegia of lower limb following cerebral infarction affecting unspecified side
- I69.351 Hemiplegia and hemiparesis following cerebral infarction affecting right dominant side
- I69.352 Hemiplegia and hemiparesis following cerebral infarction affecting left dominant side
- I69.353 Hemiplegia and hemiparesis following cerebral infarction affecting right non-dominant side
- I69.354 Hemiplegia and hemiparesis following cerebral infarction affecting left non-dominant side
- I69.359 Hemiplegia and hemiparesis following cerebral infarction affecting unspecified side
- I69.361 Other paralytic syndrome following cerebral infarction affecting right dominant side
- I69.362 Other paralytic syndrome following cerebral infarction affecting left dominant side
- I69.363 Other paralytic syndrome following cerebral infarction affecting right non-dominant side
- I69.364 Other paralytic syndrome following cerebral infarction affecting left non-dominant side
- I69.365 Other paralytic syndrome following cerebral infarction, bilateral
- I69.369 Other paralytic syndrome following cerebral infarction affecting unspecified side
- I69.390 Apraxia following cerebral infarction
- I69.391 Dysphagia following cerebral infarction
- I69.392 Facial weakness following cerebral infarction
- I69.393 Ataxia following cerebral infarction
- I69.398 Other sequelae of cerebral infarction
- I69.80 Unspecified sequelae of other cerebrovascular disease
- I69.810 Attention and concentration deficit following other cerebrovascular disease
- I69.811 Memory deficit following other cerebrovascular disease
- I69.812 Visuospatial deficit and spatial neglect following other cerebrovascular disease
- I69.813 Psychomotor deficit following other cerebrovascular disease
- I69.814 Frontal lobe and executive function deficit following other cerebrovascular disease
- I69.815 Cognitive social or emotional deficit following other cerebrovascular disease
- I69.818 Other symptoms and signs involving cognitive functions following other cerebrovascular disease
- I69.819 Unspecified symptoms and signs involving cognitive functions following other cerebrovascular disease
- I69.820 Aphasia following other cerebrovascular disease
- I69.821 Dysphasia following other cerebrovascular disease
- I69.822 Dysarthria following other cerebrovascular disease
- I69.823 Fluency disorder following other cerebrovascular disease
- I69.828 Other speech and language deficits following other cerebrovascular disease
- I69.831 Monoplegia of upper limb following other cerebrovascular disease affecting right dominant side
- I69.832 Monoplegia of upper limb following other cerebrovascular disease affecting left dominant side
- I69.833 Monoplegia of upper limb following other cerebrovascular disease affecting right non-dominant side
- I69.834 Monoplegia of upper limb following other cerebrovascular disease affecting left non-dominant side
- I69.839 Monoplegia of upper limb following other cerebrovascular disease affecting unspecified side
- I69.841 Monoplegia of lower limb following other cerebrovascular disease affecting right dominant side
- I69.842 Monoplegia of lower limb following other cerebrovascular disease affecting left dominant side
- I69.843 Monoplegia of lower limb following other cerebrovascular disease affecting right non-dominant side
- I69.844 Monoplegia of lower limb following other cerebrovascular disease affecting left non-dominant side
- I69.849 Monoplegia of lower limb following other cerebrovascular disease affecting unspecified side
- I69.851 Hemiplegia and hemiparesis following other cerebrovascular disease affecting right dominant side
- I69.852 Hemiplegia and hemiparesis following other cerebrovascular disease affecting left dominant side
- I69.853 Hemiplegia and hemiparesis following other cerebrovascular disease affecting right non-dominant side
- I69.854 Hemiplegia and hemiparesis following other cerebrovascular disease affecting left non-dominant side
- I69.859 Hemiplegia and hemiparesis following other cerebrovascular disease affecting unspecified side
- I69.861 Other paralytic syndrome following other cerebrovascular disease affecting right dominant side
- I69.862 Other paralytic syndrome following other cerebrovascular disease affecting left dominant side
- I69.863 Other paralytic syndrome following other cerebrovascular disease affecting right non-dominant side
- I69.864 Other paralytic syndrome following other cerebrovascular disease affecting left non-dominant side
- I69.865 Other paralytic syndrome following other cerebrovascular disease, bilateral
- I69.869 Other paralytic syndrome following other cerebrovascular disease affecting unspecified side
- I69.890 Apraxia following other cerebrovascular disease
- I69.891 Dysphagia following other cerebrovascular disease
- I69.892 Facial weakness following other cerebrovascular disease
- I69.893 Ataxia following other cerebrovascular disease
- I69.898 Other sequelae of other cerebrovascular disease
- I69.90 Unspecified sequelae of unspecified cerebrovascular disease
- I69.910 Attention and concentration deficit following unspecified cerebrovascular disease
- I69.911 Memory deficit following unspecified cerebrovascular disease
- I69.912 Visuospatial deficit and spatial neglect following unspecified cerebrovascular disease
- I69.913 Psychomotor deficit following unspecified cerebrovascular disease
- I69.914 Frontal lobe and executive function deficit following unspecified cerebrovascular disease
- I69.915 Cognitive social or emotional deficit following unspecified cerebrovascular disease
- I69.918 Other symptoms and signs involving cognitive functions following unspecified cerebrovascular disease
- I69.919 Unspecified symptoms and signs involving cognitive functions following unspecified cerebrovascular disease
- I69.920 Aphasia following unspecified cerebrovascular disease
- I69.921 Dysphasia following unspecified cerebrovascular disease
- I69.922 Dysarthria following unspecified cerebrovascular disease
- I69.923 Fluency disorder following unspecified cerebrovascular disease
- I69.928 Other speech and language deficits following unspecified cerebrovascular disease
- I69.931 Monoplegia of upper limb following unspecified cerebrovascular disease affecting right dominant side
- I69.932 Monoplegia of upper limb following unspecified cerebrovascular disease affecting left dominant side
- I69.933 Monoplegia of upper limb following unspecified cerebrovascular disease affecting right non-dominant side
- I69.934 Monoplegia of upper limb following unspecified cerebrovascular disease affecting left non-dominant side
- I69.939 Monoplegia of upper limb following unspecified cerebrovascular disease affecting unspecified side
- I69.941 Monoplegia of lower limb following unspecified cerebrovascular disease affecting right dominant side
- I69.942 Monoplegia of lower limb following unspecified cerebrovascular disease affecting left dominant side
- I69.943 Monoplegia of lower limb following unspecified cerebrovascular disease affecting right non-dominant side
- I69.944 Monoplegia of lower limb following unspecified cerebrovascular disease affecting left non-dominant side
- I69.949 Monoplegia of lower limb following unspecified cerebrovascular disease affecting unspecified side
- I69.951 Hemiplegia and hemiparesis following unspecified cerebrovascular disease affecting right dominant side
- I69.952 Hemiplegia and hemiparesis following unspecified cerebrovascular disease affecting left dominant side
- I69.953 Hemiplegia and hemiparesis following unspecified cerebrovascular disease affecting right non-dominant side
- I69.954 Hemiplegia and hemiparesis following unspecified cerebrovascular disease affecting left non-dominant side
- I69.959 Hemiplegia and hemiparesis following unspecified cerebrovascular disease affecting unspecified side
- I69.961 Other paralytic syndrome following unspecified cerebrovascular disease affecting right dominant side
- I69.962 Other paralytic syndrome following unspecified cerebrovascular disease affecting left dominant side
- I69.963 Other paralytic syndrome following unspecified cerebrovascular disease affecting right non-dominant side
- I69.964 Other paralytic syndrome following unspecified cerebrovascular disease affecting left non-dominant side
- I69.965 Other paralytic syndrome following unspecified cerebrovascular disease, bilateral
- I69.969 Other paralytic syndrome following unspecified cerebrovascular disease affecting unspecified side
- I69.990 Apraxia following unspecified cerebrovascular disease
- I69.991 Dysphagia following unspecified cerebrovascular disease
- I69.992 Facial weakness following unspecified cerebrovascular disease
- I69.993 Ataxia following unspecified cerebrovascular disease
- I69.998 Other sequelae following unspecified cerebrovascular disease
ICD-10-PCS
Procedure Codes
Procedure codes do not drive assignment for this DRG. DRG 56 is a Medical DRG, assigned from the principal diagnosis above.
Frequently Asked Questions
What is MS-DRG 56?
MS-DRG 56 (Degenerative Nervous System Disorders with MCC) is a medical DRG in MDC 01 (Diseases & Disorders of the Nervous System). Its FY 2026 relative weight is 2.3231 with a geometric mean length of stay of 5.7 days.
What is the difference between DRG 56, 57?
All 2 share the same base category; the severity of secondary diagnoses separates them: 56 (with MCC), 57 (without MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.
How many diagnosis codes group to DRG 56?
369 ICD-10-CM principal diagnosis codes group to this DRG, spanning 28 three-character categories.
What is the relative weight of DRG 56?
The FY 2026 relative weight of this DRG is 2.3231, meaning reimbursement of roughly 2.32 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
← PreviousDRG 55 – Nervous System Neoplasms without MCCNext →DRG 57 – Degenerative Nervous System Disorders without MCC
Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.
