2024 ICD-10-CM Diagnosis Code G40.009

Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus

ICD-10-CM Code:
G40.009
ICD-10 Code for:
Local-rel idio epi w seiz of loc onst,not ntrct,w/o stat epi
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Diseases of the nervous system
    (G00–G99)
    • Episodic and paroxysmal disorders
      (G40-G47)
      • Epilepsy and recurrent seizures
        (G40)

G40.009 is a billable diagnosis code used to specify a medical diagnosis of localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Autosomal dominant epilepsy with auditory features
  • Benign atypical partial epilepsy in childhood
  • Benign childhood epilepsy with centrotemporal spikes, non-refractory
  • Benign familial mesial temporal lobe epilepsy
  • 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 occipital lobe epilepsy
  • Benign occipital lobe epilepsy
  • Benign occipital lobe epilepsy
  • Benign psychomotor epilepsy of childhood
  • Benign Rolandic epilepsy
  • Benign Rolandic epilepsy
  • Benign Rolandic epilepsy
  • Childhood epilepsy with occipital paroxysms
  • Familial febrile convulsions
  • Familial mesial temporal lobe epilepsy with febrile seizures
  • Familial temporal lobe epilepsy
  • Febrile convulsion
  • Focal epilepsy
  • Infantile-onset mesial temporal lobe epilepsy with severe cognitive regression
  • Lateral temporal epilepsy
  • Localization-related cryptogenic epilepsy
  • Localization-related idiopathic epilepsy
  • Occipital lobe epilepsy
  • Occipital lobe epilepsy
  • Occipital lobe epilepsy
  • Parietal lobe epilepsy
  • Paroxysmal dystonia
  • Primary inherited reading epilepsy
  • Recurrent benign focal seizures of childhood
  • Recurrent seizure
  • Rolandic epilepsy, paroxysmal exercise-induced dystonia, writer's cramp syndrome
  • Rolandic epilepsy, speech dyspraxia syndrome
  • Temporal lobe epilepsy
  • Temporal lobe epilepsy
  • Temporal lobe epilepsy
  • Temporal lobe epilepsy
  • Temporal lobe epilepsy with mesial temporal sclerosis

Clinical Classification

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset NOS

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert G40.009 to ICD-9-CM

  • ICD-9-CM Code: 345.50 - Part epil w/o intr epil
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Epilepsy

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


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.