ICD-10 Diagnosis Code G40.009

Local-rel idio epi w seiz of loc onst,not ntrct,w/o stat epi

Diagnosis Code G40.009

ICD-10: G40.009
Short Description: Local-rel idio epi w seiz of loc onst,not ntrct,w/o stat epi
Long Description: Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus
This is the 2017 version of the ICD-10-CM diagnosis code G40.009

Code Classification
  • Diseases of the nervous system
    • Episodic and paroxysmal disorders (G40-G47)
      • Epilepsy and recurrent seizures (G40)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code G40.009 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Benign atypical partial epilepsy in childhood
  • Benign childhood epilepsy with centrotemporal spikes, non-refractory
  • Benign focal epilepsy of childhood
  • Benign frontal epilepsy of childhood
  • Benign occipital epilepsy of childhood - early onset variant
  • Benign occipital epilepsy of childhood - late onset variant
  • Benign occipital epilepsy of childhood - late onset, non-refractory
  • Benign psychomotor epilepsy of childhood
  • Benign Rolandic epilepsy
  • Childhood epilepsy with occipital paroxysms
  • Epilepsy with recurrent unilateral seizures in children
  • Lateral temporal epilepsy
  • Localization-related
  • Localization-related cryptogenic epilepsy
  • Localization-related epilepsy
  • Localization-related idiopathic epilepsy
  • Parietal lobe epilepsy
  • Primary inherited reading epilepsy
  • Temporal lobe epilepsy
  • Temporal lobe epilepsy with mesial temporal sclerosis
  • Temporal lobe epilepsy, non-refractory

Index of Diseases and Injuries
References found for the code G40.009 in the Index of Diseases and Injuries:

Information for Patients


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.

NIH: National Institute of Neurological Disorders and Stroke

  • Brain surgery
  • EEG
  • Epilepsy
  • Epilepsy - children
  • Epilepsy - children - discharge
  • Epilepsy or seizures - discharge

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