NEUROLOGY  DIAGNOSTIC  CODES

 

CEREBROVASCULAR DISORDERS

 

Primary

            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

 

Late Effects

            Aphasia                                                            438.11

            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

 

CEREBELLAR / SPINOCEREBELLAR  DISORDERS

 

            Ataxia  NOS                                                    334.3

            Cerebellar degeneration                                    334.2

            Spinocerebellar atrophy                                    334.8

 

COGNITIVE DISORDERS

 

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

 

CONSCIOUSNESS, DISORDERS OF

 

            Coma                                                               780.01

            Drowsiness, somnolence, stupor                       780.09

Persistent vegetative state                                  780.03

Syncope                                                           780.2

Transient alteration of awareness                       780.02

 

CRANIAL NERVE DISORDERS (see also Neuro-Ophthalmology)

 

            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 DISEASES

 

            Demyelinating disease, other                             341.8

            Multiple sclerosis                                              340

 

DRUG ABUSE

 

            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

 

(Abuse/dependence codes require 5th digit:

0 !! = unspecified; 1 = continuous; 2 = episodic; 3 = in remission)

 

EPILEPSY

 

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

 

INFECTIOUS DISEASES

 

            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

 

MOVEMENT DISORDERS

 

Parkinsonism

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

Dystonia

            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            

 

Other Movement Disorders

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

Restless legs syndrome                                     333.99

            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

 

Mononeuropathies

            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

 

Motor Neuron Diseases

            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

 

Myopathies

            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

 

Neuromuscular Junction Disorders

            Myasthenia gravis                                             358.0

            Myasthenic syndrome                                       358.1   **

            Neuromuscular junction disorder, other             358.8

 

Polyneuropathies

            Alcoholic polyneuropathy                                  357.5

            Autonomic                                                        337.0

            Charcot-Marie-Tooth disease                           356.1

            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

            Paraneoplastic                                                  357.3   **

            Secondary, other                                              357.4   **

            Toxic                                                                357.7

Root and Plexus Lesions

Cauda equina syndrome                                    344.60

Cauda equina and neurogenic bladder               344.61

Plexitis, brachial (idiopathic)                              353.5

Plexopathy, brachial                                          353.0

            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

           

NEURO-ONCOLOGY

 

            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

 

NEURO-OPHTHALMOLOGY

 

            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 !!

            3rd nerve palsy, partial                                       378.51

            3rd nerve palsy  , total                                        378.52

            4th nerve palsy                                                  378.53

            6th nerve palsy                                                  378.54

            Strabismus, paralytic NOS                                378.50 !!

            Supranuclear palsy                                            356.8

 

PAIN

 

Headache

            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

 

Other Pain

            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

 

PSYCHIATRIC DISORDERS

 

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

 

SLEEP DISORDERS

 

            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

 

SPINE / SPINAL CORD DISORDERS (see also Neuromuscular – Root/Plexus Disorders)

 

            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

 

TRAUMA

 

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

 

DISORDERS, MISCELLANEOUS

           

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

 

SYMPTOMS AND SIGNS, MISCELLANEOUS

           

            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