Epilepsy ICD-10-CM Codes

Epilepsy ICD-10-CM Codes

A comprehensive guide to ICD-10-CM codes commonly used for diagnosing and documenting epilepsy in 2025.

By Patricia Buenaventura on Aug 8, 2025.

Fact Checked by Ericka Pingol.

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What ICD-10 Codes are used for epilepsy?

Epilepsy is a neurological condition characterized by recurrent seizures. Accurate and precise coding using the ICD-10-CM is critical for diagnosis, treatment planning, and billing. This guide aims to help healthcare providers understand the ICD-10-CM codes commonly used for epilepsy.

Here are some commonly used ICD-10-CM codes for epilepsy:

G40.311: Generalized idiopathic epilepsy and epileptic syndromes, intractable with status epilepticus

Related code is G40.319: Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus

G40.211: Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus

Related code is G40.219: Localization related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus

G40.401: Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus

Related code is G40.409: Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus

G40.501: Epileptic seizures related to external causes, not intractable, with status epilepticus

Related code is G40.509: Epileptic seizures related to external causes, not intractable without status epilepticus

G40.901: Epilepsy, unspecified, not intractable, with status epilepticus

Related code is G40.909: Epilepsy, unspecified, not intractable, without status epilepticus

G40.A01: Absence epileptic syndrome, not intractable, with status epilepticus

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Which epilepsy ICD Codes are billable?

All of the Epilepsy ICD 10 codes aforementioned above are billable.

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Clinical information

  • Epilepsy can be caused by various factors such as genetic predisposition, brain injury, or an underlying neurological condition.
  • Seizures can manifest in different forms, from absence seizures to complex partial seizures.
  • Diagnosis typically involves electroencephalogram (EEG) tests, MRI scans, and a comprehensive medical history.
  • Treatment usually involves anti-seizure medications, and in some cases, surgical intervention may be considered.
  • Early diagnosis and treatment are essential for effective management of the condition.

Synonyms include

  • Seizure Disorder
  • Epileptic Seizures
  • Partial Seizures
  • Generalized Epilepsy
  • Complex Epilepsy

Commonly asked questions

ICD-10-CM codes for epilepsy should be used in medical documentation for diagnosis, treatment planning, and billing. These codes provide a standardized method for healthcare professionals to identify and categorize epilepsy types and severities.

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Common treatments generally involve anti-seizure medications like phenytoin, valproic acid, and lamotrigine. For some intractable cases, surgical procedures like vagus nerve stimulation or resective surgery may be considered.

A diagnosis code for epilepsy identifies the specific form and severity of epilepsy a patient is experiencing. These codes are vital for healthcare providers for standardized diagnosis and treatment planning and are also important for billing and statistical purposes.

Related ICDs

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