OTHER DISORDERS OF THE CENTRAL NERVOUS SYSTEM (340-349)

• 340 Multiple sclerosis
  • Disseminated or multiple sclerosis:
    • NOS
    • brain stem
    • cord
    • generalized
• 341 Other demyelinating diseases of central nervous system
  • 341.0 Neuromyelitis optica
  • 341.1 Schilder's disease
    • Balo's concentric sclerosis
    • Encephalitis periaxialis:
      • concentrica [Balo's]
      • diffusa [Schilder's]
  • 341.8 Other demyelinating diseases of central nervous system
    • Central demyelination of corpus callosum
    • Central pontine myelinosis
    • Marchiafava (-Bignami) disease
  • 341.9 Demyelinating disease of central nervous system, unspecified
• 342 Hemiplegia and hemiparesis
  • Note: This category is to be used when hemiplegia (complete) (incomplete) is reported without further specification, or is stated to be old or long-standing but of unspecified cause. The category is also for use in multiple coding to identify these types of hemiplegia resulting from any cause.
  • Excludes: congenital (343.1)
    • infantile NOS (343.4)
  • The following fifth-digits are for use with codes 342.0-342.9
    • 0 affecting unspecified side
    • 1 affecting dominant side
    • 2 affecting nondominant side
  • 342.0 Flaccid hemiplegia
  • 342.1 Spastic hemiplegia
  • 342.8 Other specified hemiplegia
  • 342.9 Hemiplegia, unspecified
• 343 Infantile cerebral palsy
  • Includes: cerebral:
    • palsy NOS
    • spastic infantile paralysis
    • congenital spastic paralysis (cerebral)
    • Little's disease
    • paralysis (spastic) due to birth injury:
      • intracranial
      • spinal
  • Excludes: hereditary cerebral paralysis, such as:
    • hereditary spastic paraplegia (334.1)
    • Vogt's disease (333.7)
    • spastic paralysis specified as noncongenital or noninfantile (344.0-344.9)
  • 343.0 Diplegic
    • Congenital diplegia
    • Congenital paraplegia
  • 343.1 Hemiplegic
    • Congenital hemiplegia
    • Excludes: infantile hemiplegia NOS (343.4)
  • 343.2 Quadriplegic
    • Tetraplegic
  • 343.3 Monoplegic
  • 343.4 Infantile hemiplegia
    • Infantile hemiplegia (postnatal) NOS
  • 343.8 Other specified infantile cerebral palsy
  • 343.9 Infantile cerebral palsy, unspecified
    • Cerebral palsy NOS
• 344 Other paralytic syndromes
  • Note: This category is to be used when the listed conditions are reported without further specification or are stated to be old or long-standing but of unspecified cause. The category is also for use in multiple coding to identify these conditions resulting from any cause.
  • Includes: paralysis (complete) (incomplete), except as classifiable to 342 and 343
  • Excludes: congenital or infantile cerebral palsy (343.0-343.9)
    • hemiplegia (342.0-342.9)
      • congenital or infantile (343.1, 343.4)
  • 344.0 Quadriplegia and quadriparesis
    • 344.00 Quadriplegia, unspecified
    • 344.01 C1 -C4 , complete
    • 344.02 C1 -C4 , incomplete
    • 344.03 C5 -C7 , complete
    • 344.04 C5 -C7 , incomplete
    • 344.09 Other
  • 344.1 Paraplegia
    • Paralysis of both lower limbs
    • Paraplegia (lower)
  • 344.2 Diplegia of upper limbs
    • Diplegia (upper)
    • Paralysis of both upper limbs
  • 344.3 Monoplegia of lower limb
    • Paralysis of lower limb
    • 344.30 Affecting unspecified side
    • 344.31 Affecting dominant side
    • 344.32 Affecting nondominant side
  • 344.4 Monoplegia of upper limb
    • Paralysis of upper limb
    • 344.40 Affecting unspecified side
    • 344.41 Affecting dominant side
    • 344.42 Affecting nondominant side
  • 344.5 Unspecified monoplegia
  • 344.6 Cauda equina syndrome
    • 344.60 Without mention of neurogenic bladder
    • 344.61 With neurogenic bladder
      • Acontractile bladder
      • Autonomic hyperreflexia of bladder
      • Cord bladder
      • Detrusor hyperreflexia
  • 344.8 Other specified paralytic syndromes
    • 344.81 Locked-in state
    • 344.89 Other specified paralytic syndrome
  • 344.9 Paralysis, unspecified
• 345 Epilepsy
  • The following fifth-digit subclassification is for use with categories 345.0, .1, .4-.9:
    • 0 without mention of intractable epilepsy
    • 1 with intractable epilepsy
  • Excludes: progressive myoclonic epilepsy (333.2)
  • 345.0 Generalized nonconvulsive epilepsy
    • Absences:
      • atonic
      • typical
    • Minor epilepsy
    • Petit mal
    • Pykno-epilepsy
    • Seizures:
      • akinetic
      • atonic
  • 345.1 Generalized convulsive epilepsy
    • Epileptic seizures:
      • clonic
      • myoclonic
      • tonic
      • tonic-clonic
    • Grand mal
    • Major epilepsy
    • Excludes: convulsions:
      • NOS (780.3)
      • infantile (780.3)
      • newborn (779.0)
      • infantile spasms (345.6)
  • 345.2 Petit mal status
    • Epileptic absence status
  • 345.3 Grand mal status
    • Status epilepticus NOS
    • Excludes: epilepsia partialis continua (345.7) status:
      • psychomotor (345.7)
      • temporal lobe (345.7)
  • 345.4 Partial epilepsy, with impairment of consciousness
    • Epilepsy:
      • limbic system
      • partial:
        • secondarily generalized
        • with memory and ideational disturbances
      • psychomotor
      • psychosensory
      • temporal lobe
    • Epileptic automatism
  • 345.5 Partial epilepsy, without mention of impairment of consciousness
    • Epilepsy:
      • Bravais-Jacksonian NOS
      • focal (motor) NOS
      • Jacksonian NOS
      • motor partial
      • partial NOS
      • sensory-induced
      • somatomotor
      • somatosensory
      • visceral
      • visual
  • 345.6 Infantile spasms
    • Hypsarrhythmia
    • Lightning spasms
    • Salaam attacks
    • Excludes: salaam tic (781.0)
  • 345.7 Epilepsia partialis continua
    • Kojevnikov's epilepsy
  • 345.8 Other forms of epilepsy
    • Epilepsy:
      • cursive [running]
      • gelastic
  • 345.9 Epilepsy, unspecified
    • Epileptic convulsions, fits, or seizures NOS
    • Excludes: convulsive seizure or fit NOS (780.3)
• 346 Migraine
  • The following fifth-digit subclassification is for use with category 346:
    • 0 without mention of intractable migraine
    • 1 with intractable migraine, so stated
  • 346.0 Classical migraine
    • Migraine preceded or accompanied by transient focal neurological phenomena
    • Migraine with aura
  • 346.1 Common migraine
    • Atypical migraine
    • Sick headache
  • 346.2 Variants of migraine
    • Cluster headache
    • Histamine cephalgia
    • Horton's neuralgia
    • Migraine:
      • abdominal
      • basilar
      • lower half
      • retinal
    • Neuralgia:
      • ciliary
      • migrainous
  • 346.8 Other forms of migraine
    • Migraine:
      • hemiplegic
      • ophthalmoplegic
  • 346.9 Migraine, unspecified
• 347 Cataplexy and narcolepsy
• 348 Other conditions of brain
  • 348.0 Cerebral cysts
    • Arachnoid cyst
    • Porencephalic cyst
    • Porencephaly, acquired
    • Pseudoporencephaly
  • 348.1 Anoxic brain damage
    • Excludes: that occurring in:
      • abortion (634-638 with .7, 639.8)
      • ectopic or molar pregnancy (639.8)
      • labor or delivery (668.2, 669.4)
      • that of newborn (767.0, 768.0-768.9, 772.1-772.2)
    • Use additional E code to identify cause
  • 348.2 Benign intracranial hypertension
    • Pseudotumor cerebri
    • Excludes: hypertensive encephalopathy (437.2)
  • 348.3 Encephalopathy, unspecified
  • 348.4 Compression of brain
    • Compression brain (stem)
    • Herniation brain (stem)
    • Posterior fossa compression syndrome
  • 348.5 Cerebral edema
  • 348.8 Other conditions of brain
    • Cerebral:
      • calcification
      • fungus
  • 348.9 Unspecified condition of brain
• 349 Other and unspecified disorders of the nervous system
  • 349.0 Reaction to spinal or lumbar puncture
    • Headache following lumbar puncture
  • 349.1 Nervous system complications from surgically implanted device
    • Excludes: immediate postoperative complications (997.00)
      • mechanical complications of nervous system device (996.2)
  • 349.2 Disorders of meninges, not elsewhere classified
    • Adhesions, meningeal (cerebral) (spinal)
    • Cyst, spinal meninges
    • Meningocele, acquired
    • Pseudomeningocele, acquired
  • 349.8 Other specified disorders of nervous system
    • 349.81 Cerebrospinal fluid rhinorrhea
      • Excludes: cerebrospinal fluid otorrhea (388.61)
    • 349.82 Toxic encephalopathy
      • Use additional E code to identify cause
    • 349.89 Other
  • 349.9 Unspecified disorders of nervous system
    • Disorder of nervous system (central) NOS