Diagnostic Services ICD-9-CM to ICD-10-CM Codes for Neurology ICD-9 ICD-10 ICD-9 ICD-10 Diagnoses Diagnoses Code Code Code Code Behavioral/Cognitive Syndromes 277.5 Mucopolysaccharidosis 294.8 Amnestic Disorder F04 Other Mucopolysaccharidoses E76.29 294.9 Cognitive Disorder F09 Mucopolysaccharidosis, Unspecified E76.3 299.00 - 312.9 Behavior Disorder F91.9 Autistic Disorder F84.0 299.01 Attention Deficit Hyperactivity 299.10 - 314.01 F90.9 Childhood Disintegrative Disorder F84.3 Disorder 299.11 Cerebral Degeneration Other Specified Pervasive 299.80 - Developmental Disorders 294.20 Dementia F03.90 299.81 (Asperger Syndrome) 331.0 Alzheimer’s Disease G30.9 Asperger's Syndrome F84.5 331.11 Pick’s Disease G31.01 Other Pervasive Developmental F84.8 331.19 Frontal Dementia G31.09 Disorders 331.81 Reye’s Syndrome G93.7 317 Mild Intellectual Disabilities F70 780.09 Delirium R41.0 318.0 - Other Specified Intellectual 318.2 Disabilities Cerebral Lobe Dysfunction Moderate Intellectual Disabilities F71 780.93 Amnesia R41.3 Severe Intellectual Disabilities F72 784.3 Aphasia R47.01 Profound Intellectual Disabilities F73 784.69 Agnosia R48.1 319 Unspecified Intellectual Disabilities F79 784.69 Apraxia R48.2 Multiple Congenital Anomalies, So 759.7 Q89.7 Cerebrovascular Diseases Described 759.83 Fragile X Syndrome Q99.2 434.01 Thrombotic Stroke I63.9 759.89 Other Specified Anomalies Q87.89 434.11 Embolic Stroke I63.9 Other Specified Congenital 435.9 Transient Ischemic Attack G45.9 Malformation Syndromes, Not Q89.8 Cranial Nerve Disorders Elsewhere Classified Other specified congenital 352.9 Cranial Nerve Disorder G52.9 malformations Developmental Delay 759.9 Congenital Anomaly, Unspecified Q89.9 270.0 Amino Acid Transport Disorder 783.42 Delayed Milestones R62.0 Disorders Of Amino-Acid Transport, E72.00 Genetic Disorders Unspecified Cystinuria E72.01 270.1 Phenylketonuria E70.1 Cystinosis E72.04 272.7 Neiman Pick Disease E75.249 Other Disorders Of Amino-Acid Lysosomal Disorders (Gaucher, Fabry, E72.09 272.7 Transport Pompe, Etc.) 270.1 Phenylketonuria [PKU] 275.1 Wilson’s Disease E83.01 Classical Phenylketonuria E70.0 330.0 Leukodystrophy E75.29 271.0 Glycogenosis 330.1 Tay Sach’s Disease E75.02 Disorders Of Amino-Acid Transport, Headache Disorders E72.00 Unspecified 307.81 Tension Headache G44.209 Cystinuria E72.01 339.00 Cluster Headaches G44.009 Cystinosis E72.04 346.00 Migraine Headache With Aura G43.109 Other Disorders Of Amino-Acid E72.09 Transport ICD-9-CM to ICD-10-CM Codes for Neurology ICD-9 ICD-10 ICD-9 ICD-10 Diagnoses Diagnoses Code Code Code Code Migraine With Aura, With Intractable Hemiplegic Migraine, With 346.01 Migraine, So Stated, Without Mention G43.119 Intractable Migraine, So Stated, 346.31 G43.419 Of Status Migrainosus Without Mention Of Status Migraine With Aura, Without Mention Migrainosus 346.02 Of Intractable Migraine With Status G43.101 Hemiplegic Migraine, Without Migrainosus 346.32 Mention Of Intractable Migraine With G43.401 Migraine With Aura, With Intractable Status Migrainosus 346.03 Migraine, So Stated, With Status G43.111 Hemiplegic Migraine, With Migrainosus 346.33 Intractable Migraine, So Stated, With G43.411 346.10 Common Migraine G43.009 Status Migrainosus Migraine Without Aura, With Menstrual Migraine, Without Mention Intractable Migraine, So Stated, 346.40 Of Intractable Migraine Without G43.829 346.11 G43.019 Without Mention Of Status Mention Of Status Migrainosus Migrainosus Menstrual Migraine, With Intractable Migraine Without Aura, Without 346.41 Migraine, So Stated, Without Mention G43.839 346.12 Mention Of Intractable Migraine With G43.001 Of Status Migrainosus Status Migrainosus Menstrual Migraine, Without Mention Migraine Without Aura, With 346.42 Of Intractable Migraine With Status G43.821 346.13 Intractable Migraine, So Stated, With G43.011 Migrainosus Status Migrainosus Menstrual Migraine, With Intractable Variants Of Migraine, Not Elsewhere 346.43 Migraine, So Stated, With Status G43.831 Classified, Without Mention Of Migrainosus 346.20 G43.A0 Intractable Migraine, Without Persistent Migraine Aura Without Cerebral Infarction, Without Mention Mention Of Status Migrainosus 346.50 G43.509 Variants Of Migraine, Not Elsewhere Of Intractable Migraine Without Classified, Without Mention Of Mention Of Status Migrainosus 346.20 G43.B0 Intractable Migraine, Without Persistent Migraine Aura Without Cerebral Infarction, With Intractable Mention Of Status Migrainosus 346.51 G43.519 Variants Of Migraine, Not Elsewhere Migraine, So Stated, Without Mention Classified, Without Mention Of Of Status Migrainosus 346.20 G43.D0 Intractable Migraine, Without Persistent Migraine Aura Without Cerebral Infarction, Without Mention Mention Of Status Migrainosus 346.52 G43.501 Variants Of Migraine, Not Elsewhere Of Intractable Migraine With Status Classified, With Intractable Migraine, Migrainosus 346.21 G43.A1 So Stated, Without Mention Of Persistent Migraine Aura Without Cerebral Infarction, With Intractable Status Migrainosus 346.53 G43.511 Variants Of Migraine, Not Elsewhere Migraine, So Stated, With Status Classified, With Intractable Migraine, Migrainosus 346.21 G43.B1 So Stated, Without Mention Of Persistent Migraine Aura With Cerebral Infarction, Without Mention Status Migrainosus 346.60 G43.609 Variants Of Migraine, Not Elsewhere Of Intractable Migraine Without Classified, With Intractable Migraine, Mention Of Status Migrainosus 346.21 G43.C1 So Stated, Without Mention Of Persistent Migraine Aura With Cerebral Infarction, With Intractable Status Migrainosus 346.61 G43.619 Variants Of Migraine, Not Elsewhere Migraine, So Stated, Without Mention Classified, With Intractable Migraine, Of Status Migrainosus 346.21 G43.D1 So Stated, Without Mention Of Persistent Migraine Aura With Cerebral Infarction, Without Mention Status Migrainosus 346.62 G43.601 Hemiplegic Migraine, Without Of Intractable Migraine With Status Mention Of Intractable Migraine Migrainosus 346.30 G43.409 Without Mention Of Status Persistent Migraine Aura With Cerebral Infarction, With Intractable Migrainosus 346.63 G43.611 Migraine, So Stated, With Status Migrainosus ICD-9 ICD-10 ICD-9 ICD-10 Diagnoses Diagnoses Code Code Code Code Chronic Migraine Without Aura, 854.00 Traumatic Brain Injury Without Mention Of Intractable 346.70 G43.709 Unspecified open wound of Migraine Without Mention Of Status unspecified part of head, initial S06.9X0A Migrainosus encounter Chronic Migraine Without Aura, Unspecified Intracranial Injury With Intractable Migraine, So 346.71 G43.719 Without Loss Of Consciousness, S06.9X0D Stated, Without Mention Of Status Subsequent Encounter Migrainosus Unspecified Intracranial Injury Chronic Migraine Without Aura, Without Loss Of Consciousness, S06.9X0S 346.72 Without Mention Of Intractable G43.701 Sequela Migraine With Status Migrainosus 854.10 Brain Injury With Intracranial Wound Chronic Migraine Without Aura, With 346.73 Intractable Migraine, So Stated, With G43.711 Unspecified open wound of Status Migrainosus unspecified part of head, initial S06.9X0A encounter 346.80 Ophthalmic Migraine G43.809 Unspecified Intracranial Injury 346.90 Migraine Headache, Unspecified G43.909 Without Loss Of Consciousness, S06.9X0D 348.2 Idiopathic Intracranial Hypertension G93.2 Subsequent Encounter 784.0 Headache R51 Unspecified Intracranial Injury Without Loss Of Consciousness, S06.9X0S 784.0 Headache G44.1 Sequela Voice And Resonance Disorder, 784.40 R49.9 Intracranial And Spinal Tumors Unspecified 784.59 Other Speech Disturbance R47.02 191.6 Medulloblastoma C71.6 191.9 Glioma C71.9 Infections 192.2 Malignant Neoplasm Of Spinal Cord C72.0 322.9 Meningitis G03.9 194.3 Pituitary Cancer C75.1 323.9 Encephalitis G04.90 225.2 Meningioma D32.9 323.9 Myelitis G04.91 237.5 Brain Tumor D49.6 Injuries 237.70 Neurofibromatosis Q85.00 852.20 Subdural Intracranial Hematoma Motor Neuron Diseases Traumatic Subdural Hemorrhage Without Loss Of Consciousness, S06.5X0A 335.20 Amyotrophic Lateral Sclerosis G12.21 Initial Encounter 335.21 Progressive Muscular Atrophy G12.21 Traumatic Subdural Hemorrhage 335.24 Primary Lateral Sclerosis G12.29 Without Loss Of Consciousness, S06.5X0D Subsequent Encounter Movement And Cerebellar Disorders Traumatic Subdural Hemorrhage 307.20 Tic Disorder F95.9 Without Loss Of Consciousness, S06.5X0S Sequela 307.23 Tourette’s Syndrome F95.2 853.00 Traumatic Cerebral Hemorrhage 332.0 Parkinson’s Disease G20 Unspecified focal traumatic brain 332.1 Secondary Parkinsonism G21.9 injury without loss of consciousness, S06.300A 333.0 Progressive Supernuclear Palsy G23.1 initial encounter Essential And Other Specified Forms Unspecified Focal Traumatic 333.1 G25.0 Of Tremor Brain Injury Without Loss Of S06.300D Essential And Other Specified Forms Consciousness, Subsequent 333.1 G25.1 Encounter Of Tremor Essential And Other Specified Forms Unspecified Focal Traumatic 333.1 G25.2 Brain Injury Without Loss Of S06.300S Of Tremor Consciousness, Sequela 333.2 Myoclonus G25.3 ICD-9 ICD-10 ICD-9 ICD-10 Diagnoses Diagnoses Code Code Code Code 333.4 Huntington’s Disease G10 356.3 Refsum’s Disease G60.1 Other Specified Idiopathic Peripheral 333.5 Hemiballismus G25.5 356.8 G60.8 Neuropathy 333.72 Acute Dystonia Due To Drugs G24.02 356.9 Peripheral Neuropathy G60.9 333.79 Acquired Torsion Dystonia G24.8 357 Guillain-Barre Syndrome G61.0 781.0 Spasms R25.2 358.00 Myasthenia Gravis G70.00 781.0 Tremor R25.1 358.01 Myasthenia Gravis With Exacerbation G70.01 781.3 Ataxia R27.0 Seizure Disorders Muscular Dystrophies And Other Myopathies Generalized Nonconvulsive