NEUROLOGY DIAGNOSTIC CODES
Aneurysm, unruptured 437.3
Arteriovenous malformation, brain 747.81
Atherosclerosis, cerebral 437.0
Basilar artery stenosis, no infarct 433.00
Basilar artery stenosis and infarct 433.01
Carotid artery stenosis, no infarct 433.10
Carotid artery stenosis and infarct 433.11
Cerebral arteritis 437.4
Giant cell (temporal) arteritis 446.5
Hematoma, subdural 432.1
Hemorrhage, extradural 432.0
Hemorrhage, intracerebral 431
Hemorrhage, subarachnoid 430
Hypertensive encephalopathy 437.2
Iatrogenic or postoperative stroke 997.02
Infarction, embolic 434.11
Infarction, thrombotic 434.01
Infarction, unspecified mechanism 434.91 !!
Stroke NOS 436 !!
Subclavian steal syndrome 435.2
TIA, vertebrobasilar 435.3
TIA, carotid 435.8
TIA, mixed or unknown 435.9 !!
Vertebral artery stenosis, no infarct 433.20
Vertebral artery stenosis and infarct 433.21
Aphasia
Apraxia 438.81
Cognitive deficits 438.0
Dysarthria 438.19
Dysphagia 438.82
Hemiplegia, dominant 438.21
Hemiplegia, nondominant 438.22
Late effect, other 438.89
Monoplegia, dominant lower limb 438.41
Monoplegia, nondominant lower 438.42
Monoplegia, dominant upper limb 438.31
Monoplegia, nondominant upper 438.32
Ataxia NOS 334.3
Cerebellar degeneration 334.2
Spinocerebellar atrophy 334.8
Acute confusional state 293.0
Alzheimer’s disease 331.0
Amnesia, transient global 437.7
Amnestic syndrome (Korsakoff’s) 291.1
Amnestic syndrome (nonalcoholic) 294.0
Aphasia 784.3
Apraxia 784.69
Attention deficit disorder 314.00
Attention deficit disorder and hyperactivity 314.01
Dementia, secondary 294.1 **
Developmental dyslexia 315.02
Encephalopathy, drug-induced 292.81
Encephalopathy, hepatic 572.2
Frontal lobe syndrome 310.0
Mental retardation, mild 317
Mental retardation, moderate 318.0
Mental retardation, severe 318.1
Mental retardation, profound 318.2
Multi-infarct dementia 290.40
Neglect 781.8
Organic brain syndrome NOS 294.9 !!
Pick’s disease 331.1
Presenile dementia 290.10
Presenile dementia with acute confusion 290.11
Senile dementia 290.0
Senile dementia with acute confusion 290.3
Coma 780.01
Drowsiness, somnolence, stupor 780.09
Persistent vegetative state 780.03
Syncope 780.2
Transient alteration of awareness 780.02
I: Olfactory nerve disorder 352.0
V: Trigeminal neuralgia 350.1
V: Atypical facial pain 350.2
VII: Bell’s palsy 351.0
VII: Hemifacial spasm 351.8 (Medicare 351.9)
VIII: Benign positional vertigo 386.11
VIII: Vestibular neuronitis 386.12
VIII: Vertigo NOS 386.10 !!
VIII: Familial, other specific hearing loss 389.8
IX: Glossopharyngeal neuralgia 352.1
IX: Glossopharyngeal disorder, other 352.2
X: Vagus nerve disorder 352.3
X: Laryngeal nerve palsy, unilateral 478.31
XI: Accessory nerve disorder 352.4
XII: Hypoglossal nerve disorder 352.5
Demyelinating disease, other 341.8
Multiple sclerosis 340
Alcohol abuse, acute (not alcoholism) 305.0_
Alcohol dependence (alcoholism) 303.9_
Alcohol withdrawal syndrome 291.81
Cocaine abuse 305.6_
Cocaine dependence 304.2_
Delirium tremens 291.0
Opiate abuse 305.5_
Opiate dependence 304.0_
Tranquilizer abuse 305.4_
Tranquilizer dependence 304.1_
Withdrawal, drugs other than alcohol 292.0
Complex partial 345.40
Complex partial, intractable 345.41
Epilepsia partialis continua 345.71
Febrile convulsions 780.31
Focal with 2o generalization 345.40
Focal with 2o generalization, intractable 345.40
Generalized convulsive 345.10
Generalized convulsive, intractable 345.11
Generalized convulsive status 345.3
Generalized nonconvulsive 345.00
Generalized nonconvulsive, intractable 345.01
Generalized nonconvulsive status 345.2
Infantile spasms 345.60
Infantile spasms, intractable 345.61
Progressive myoclonic epilepsy 333.2
Seizure disorder, other specified 345.80
Seizure disorder, other specified intractable 345.81
Seizures, fits, convulsions NOS 780.39
Simple partial 345.50
Simple partial, intractable 345.51
Toxicity, phenobarbital 967.0
Toxicity, phenytoin 966.1
Toxicity, other anticonvulsants 966.3
Abscess, intracranial 324.0
AIDS 042
Encephalitis, viral NOS 064
Herpes simplex encephalitis 054.3
Herpes zoster 053.9
Late effects, encephalitis 139.0
Late effects, other infections 139.8
Meningitis, chronic 322.2
Meningitis, gram-negative 320.82
Meningitis, meningococcal 036.0
Meningitis, pneumococcal 320.1
Meningitis, streptococcal 320.2
Meningitis, viral NOS 047.9 !!
Progressive multifocal leukoencephalopathy 046.3
Toxoplasmosis of CNS 130.0
Basal ganglia degeneration 333.0
CBGD (cortical) 331.89
Drug-induced parkinsonism 332.1
MSA (autonomic) 337.9 !!
MSA (cerebellar) 334.2
Parkinson’s disease 332.0
PSP 356.8
Toxicity, antiparkinsonian drugs 966.4
Blepharospasm 333.81
Focal dystonia, other 333.89
Idiopathic dystonia 333.6
Orofacial dyskinesia 333.82
Paroxysmal dystonia 333.5
Secondary dystonia 333.7
Spasmodic dysphonia 784.49
Spasmodic torticollis 333.83
Writer’s cramp 333.84
Akathisia 781.0
Athetosis 781.0
Ballism, non-Huntington chorea 333.5
Essential tremor 333.1
Huntington’s disease 333.4
Myoclonus 333.2
Psychogenic dyskinesias 307.9
Stereotypies 307.3
Stiff-man syndrome 333.91
Tic disorders, other 307.20 !!
Tourette’s syndrome 307.23
Wilson’s disease 275.1
Abnormal movements NOS 781.0
Movement disorder NOS 333.90 !!
NEUROMUSCULAR DISORDERS
Carpal tunnel syndrome 354.0
Femoral 355.2
Median (not CTS) 354.1
Meralgia paresthetica 355.1
Mononeuritis multiplex 354.5
Mononeuropathy, other upper limb 354.8
Mononeuropathy, other lower limb 355.79
Morton’s neuroma 355.6
Peroneal 355.3
Radial 354.3
Sciatic 355.0
Tarsal tunnel syndrome 355.5
Ulnar 354.2
ALS 335.20
Familial spastic paraplegia 334.1
Motor neuron disease, other 335.29
Polio, late effects 138
Primary lateral sclerosis 335.24
Progressive bulbar palsy 335.22
Progressive muscular atrophy 335.21
Pseudobulbar palsy 335.23
Spinal muscular atrophy, adult 335.19
Spinal muscular atrophy, infantile 335.0
Spinal muscular atrophy, juvenile 335.11
Congenital 359.0
Dermatomyositis 710.3
Endocrine 359.5 **
Inflammatory, secondary 359.6 **
Muscular dystrophy 359.1
Myopathy, other 359.8
Myotonic disorders and dystrophy 359.2
Periodic paralysis, familial 359.3
Polymyalgia rheumatica 725
Polymyositis 710.4
Toxic 359.4
Myasthenia gravis 358.0
Myasthenic syndrome 358.1 **
Neuromuscular junction disorder, other 358.8
Autonomic 337.0
Chronic inflammatory demyelinating 357.8
Collagen vascular disease 357.1 **
Diabetic neuropathy 357.2 **
Drug-induced 357.6
Guillain-Barre syndrome 357.0
Hereditary neuropathy 356.0
Idiopathic 356.4
Inflammatory, other 357.8
Secondary, other 357.4 **
Toxic 357.7
Cauda equina and neurogenic bladder 344.61
Plexopathy, lumbosacral 353.1
Radiculopathy, cervical 353.2
Radiculopathy, due to cervical disc 722.0
Radiculopathy, thoracic 353.3
Radiculopathy, lumbosacral 353.4
Radiculopathy, due to lumbosacral disc 722.10
Brain tumor, benign 225.0
Brain tumor, malignant 191.0
Brainstem 191.7
Cerebellum 191.6
Frontal lobe 191.1
Occipital lobe 191.4
Parietal lobe 191.3
Temporal lobe 191.2
Cranial nerve tumor, benign 225.1
Lymphoma, brain 202.80 !!
Meningeal tumor
Benign cerebral 225.2
Benign spinal 225.4
Malignant cerebral 192.1
Malignant spinal 192.3
Metastasis, brain or spinal cord 198.3
Metastasis, other CNS 198.4
Pituitary tumor, benign 227.3
Radiation therapy effects 990 !!
Spinal cord/cauda equina tumor, benign 225.3
Spinal cord/cauda equina tumor, malignant 192.2
Amaurosis fugax 362.34
Blurred vision NOS 368.8
Diplopia 368.2
Eyelid motility disorder, other 374.45
Eyelid paralysis (ptosis) 374.31
Eyelid retraction or lag 374.41
Homonymous visual field defect 368.46
Horner’s syndrome 337.9 !!
Internuclear ophthalmoplegia 378.86
Miosis 379.42
Mydriasis 379.43
Optic atrophy NOS 377.10 !!
Optic neuritis with papillitis 377.31
Optic neuritis, retrobulbar 377.32
Optic neuropathy, ischemic 377.41
Optic neuropathy, other 377.49
Papilledema due to high ICP 377.01
Pupil, abnormal NOS 379.40 !!
Strabismus, paralytic NOS 378.50 !!
Supranuclear palsy 356.8
Atypical facial pain 350.2
Cluster headache 346.20
Giant cell (temporal) arteritis 446.5
Headache NOS 784.0
Migraine, basilar 346.20
Migraine, classical 346.00
Migraine, common 346.10
Migraine, status 346.11
Migraine, variant 346.20
Post-lumbar puncture 349.0
Pseudotumor cerebri 348.2
Tension headache 307.81
Causalgia, lower limb 355.71
Causalgia, upper limb 354.4
Causalgia NOS 355.9 !!
Cramps 729.82
Disorder of muscle/ligament/fascia, other 728.89
Fibromyalgia 729.1 !!
Generalized pain 780.9
Limb pain 729.5
Low back pain 724.2
Neck pain 723.1
Postherpetic neuralgia 053.19
Reflex sympathetic dystrophy , lower limb 337.22
Reflex sympathetic dystrophy , upper limb 337.21
Reflex sympathetic dystrophy , other site 337.29
Sciatica 724.3
Anxiety, generalized 300.02
Compensation neurosis 300.16
Conversion reaction or disorder 300.11
Depression, primary 311
Depression, reactive 308.0
Factitious illness, malingering 300.16
Hallucinations 780.1
Hallucinosis, drug-induced 292.12
Hallucinosis, organic 293.82
Hypochondriasis 300.7
Obsessive-compulsive disorder 300.3
Panic disorder 300.01
Somatization disorder 300.81
Disruption of sleep-wake cycle, organic 780.55
Disruption of sleep-wake cycle, nonorganic 307.45
Hypersomnia with sleep apnea 780.53
Hypersomnia, other 780.54
Inadequate sleep hygiene 307.42
Insomnia due to anxiety or depression 307.42
Insomnia with sleep apnea 780.51
Insomnia, other 780.52
Narcolepsy, cataplexy 347
REM sleep behavior disorder, nightmares 307.47
Sleep disturbance, other 780.59
Somnambulism, confusional arousals 307.46
Arthritis, lumbosacral 721.3
Cervical canal stenosis 723.0
Cervical spondylosis 721.0
Cervical spondylosis and myelopathy 721.1
Lumbar canal stenosis 724.02
Lumbosacral spondylosis 721.3
Myelopathy, other 336.8
Postlaminectomy syndrome, cervical 722.81
Postlaminectomy syndrome, lumbar 722.83
Postlaminectomy syndrome, thoracic 722.82
Radiculopathy, due to cervical disc 722.0
Radiculopathy, due to lumbosacral disc 722.10
Radiculopathy, due to thoracic disc 722.11
Subacute combined degeneration 336.2 **
Syringomyelia 336.0
Thoracic spondylosis 721.2
Thoracic spondylosis and myelopathy 721.41
Adult physical abuse (including spousal) 995.81
Child physical abuse 995.54
Brain (LOC for 1-24 hours) 854.03
Brain (LOC for >24 hours) 854.04
Brain (persisting impaired consciousness) 854.05
Concussion (no LOC) 850.0
Concussion (LOC < 1 hour) 850.1
Nerve 957.1
Posttraumatic brain syndrome 310.2
Spinal cord (may specify site) 952.9 !!
Whiplash 847.0
Anoxic injury 348.1
Anoxic injury during or due to a procedure 997.01
B12 deficiency 266.2
Bladder, flaccid 596.53
Bladder, hypertonic 596.51
Bladder, neurogenic NOS 596.54 !!
Cerebral degeneration, other 331.89
Cerebral palsy NOS 343.9 !!
Developmental speech disorder 315.39
Dysautonomia 337.9 !!
Edema, cerebral 348.5
Encephalopathy, hepatic 572.2
Encephalopathy, unspecified 348.3 !!
Hemiplegia, flaccid, dominant 342.01
Hemiplegia, flaccid, nondominant 342.02
Hemiplegia, spastic, dominant 342.11
Hemiplegia, spastic, nondominant 342.12
Hydrocephalus, communicating 331.3
Hydrocephalus, obstructive 331.4
Monoplegia, lower limb, dominant 344.31
Monoplegia, lower limb, nondominant 344.32
Monoplegia, transient 781.4
Monoplegia, upper limb, dominant 344.41
Monoplegia, upper limb, nondominant 344.42
Orthostatic hypotension 458.0
Paraplegia 344.1
Pseudobulbar palsy 335.23
Wernicke’s encephalopathy 291.1
Bruxism 306.8
Chronic fatigue syndrome 780.71
Dizziness, lightheadedness, vertigo NOS 780.4
Dysarthria 784.5
Dysphagia 787.2
Dysphonia 784.49
Fasciculation 781.0
Gait disorder 781.2
Incoordination 781.3
Posture, abnormal 781.9
Sensory disturbance 782.0
Spasm of muscle 728.85
Weakness, generalized 780.79
!! = unspecified code. High likelihood of denial.
** = secondary diagnosis. Requires code for underlying disease or condition.
LOC = loss of consciousness
NOS = not otherwise specified