Non-specific code 2014 ICD-9-CM Diagnosis Code 345.9
Epilepsy unspecified
  • Non-Billable Code
  • There are 2 ICD-9-CM codes below 345.9 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Clinical Information
  • A brain disorder characterized by episodes of abnormally increased neuronal discharge resulting in transient episodes of sensory or motor neurological dysfunction, or psychic dysfunction. These episodes may or may not be associated with loss of consciousness or convulsions.
  • A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (from Adams et al., Principles of Neurology, 6th ed, p313)
  • A disorder characterized by recurrent seizures
  • A group of disorders marked by problems in the normal functioning of the brain. These problems can produce seizures, unusual body movements, a loss of consciousness or changes in consciousness, as well as mental problems or problems with the senses.
  • Brain disorder characterized by recurring excessive neuronal discharge, exhibited by transient episodes of motor, sensory, or psychic dysfunction, with or without unconsciousness or convulsive movements.
  • Epilepsy is a brain disorder that causes people to have recurring seizures. The seizures happen when clusters of nerve cells, or neurons, in the brain send out the wrong signals. People may have strange sensations and emotions or behave strangely. They may have violent muscle spasms or lose consciousness. Epilepsy has many possible causes, including illness, brain injury and abnormal brain development. In many cases, the cause is unknown.doctors use brain scans and other tests to diagnose epilepsy. It is important to start treatment right away. There is no cure for epilepsy, but medicines can control seizures for most people. When medicines are not working well, surgery or implanted devices such as vagus nerve stimulators may help. Special diets can help some children with epilepsy.
345.9 Excludes
  • convulsion (convulsive) disorder (780.39)
  • convulsive seizure or fit NOS (780.39)
  • recurrent convulsions (780.39)
Applies To
  • Epileptic convulsions, fits, or seizures NOS
  • Seizure disorder NOS
ICD-9-CM Volume 2 Index entries containing back-references to 345.9:
  • Attack
    • epileptic (see also Epilepsy) 345.9
  • Clouded state 780.09
    • epileptic (see also Epilepsy) 345.9
    • paroxysmal (idiopathic) (see also Epilepsy) 345.9
  • Convulsions (idiopathic) 780.39
    • epileptic (see also Epilepsy) 345.9
  • Disorder - see also Disease
    • seizure 345.9
      • recurrent 345.9
        • epileptic - see Epilepsy
  • Epilepsy, epileptic (idiopathic) 345.9
    • autonomic diencephalic 345.5
    • brain 345.9
    • cerebral 345.9
    • climacteric 345.9
    • clouded state 345.9
    • complicating pregnancy, childbirth, or the puerperium 649.4
    • congenital 345.9
    • convulsions 345.9
    • cortical (focal) (motor) 345.5
    • deterioration
      • with behavioral disturbance 345.9 [294.11]
      • without behavioral disturbance 345.9 [294.10]
    • fit 345.9
    • grand mal (idiopathic) 345.1
    • Jacksonian (motor) (sensory) 345.5
    • Kojevnikoff's, Kojevnikov's, Kojewnikoff's 345.7
    • localization related (focal) (partial) and epileptic syndromes
      • with
        • complex partial seizures 345.4
        • simple partial seizures 345.5
    • mixed (type) 345.9
    • myoclonus, myoclonic 345.1
      • progressive (familial) 345.1
    • nonconvulsive, generalized 345.0
    • partial (focalized) 345.5
      • with
        • impairment of consciousness 345.4
        • memory and ideational disturbances 345.4
      • without impairment of consciousness 345.5
      • abdominal type 345.5
      • motor type 345.5
      • psychomotor type 345.4
      • psychosensory type 345.4
      • secondarily generalized 345.4
      • sensory type 345.5
      • somatomotor type 345.5
      • somatosensory type 345.5
      • temporal lobe type 345.4
      • visceral type 345.5
      • visual type 345.5
    • peripheral 345.9
    • progressive myoclonic (familial) 345.1
    • seizure 345.9
    • senile 345.9
    • sleep (see also Narcolepsy) 347.00
    • symptomatic 345.9
    • traumatic (injury unspecified) 907.0
      • injury specified - see Late, effect (of) specified injury
    • Unverricht (-Lundborg) (familial myoclonic) 345.1
  • Fit 780.39
    • epileptic (see also Epilepsy) 345.9
  • Mal
    • cerebral (idiopathic) (see also Epilepsy) 345.9
    • comital (see also Epilepsy) 345.9
  • Morbus
    • caducus (see also Epilepsy) 345.9
    • comitialis (see also Epilepsy) 345.9
  • Seizure(s) 780.39
    • disorder (see also Epilepsy) 345.9
    • epilepsy, epileptic (cryptogenic) (see also Epilepsy) 345.9
  • State
    • clouded
      • epileptic (see also Epilepsy) 345.9
      • paroxysmal (idiopathic) (see also Epilepsy) 345.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 345.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.