2022 ICD-10-CM Code G40.3

Generalized idiopathic epilepsy and epileptic syndromes

Version 2021

Not Valid for Submission

ICD-10:G40.3
Short Description:Generalized idiopathic epilepsy and epileptic syndromes
Long Description:Generalized idiopathic epilepsy and epileptic syndromes

Code Classification

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

G40.3 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of generalized idiopathic epilepsy and epileptic syndromes. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Generalized idiopathic epilepsy and epileptic syndromes

Non-specific codes like G40.3 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for generalized idiopathic epilepsy and epileptic syndromes:

  • NON-BILLABLE CODE - G40.30 for Generalized idiopathic epilepsy and epileptic syndromes, not intractable
  • BILLABLE CODE - Use G40.301 for Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
  • BILLABLE CODE - Use G40.309 for Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
  • NON-BILLABLE CODE - G40.31 for Generalized idiopathic epilepsy and epileptic syndromes, intractable
  • BILLABLE CODE - Use G40.311 for Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus
  • BILLABLE CODE - Use G40.319 for Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G40.3:


Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

Information for Patients


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


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Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)