Epilepsy ICD-10-CM Codes

A comprehensive guide to ICD-10-CM codes commonly used for diagnosing and documenting epilepsy in 2023.

By Harriet Murray on Feb 29, 2024.

Fact Checked by Ericka Pingol.

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Epilepsy ICD-10-CM Codes

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:

G40.801: Other epilepsy, intractable

This code is used when epilepsy is not adequately controlled despite medical intervention.

G40.802: Other epilepsy, not intractable

This code is used for cases of epilepsy that are controllable with medication.

G40.909: Epilepsy, unspecified, not intractable

This code is used for unspecified cases of epilepsy that are not intractable.

G40.211: Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable

This code is used for cases of focal epilepsy that are intractable.

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

This code is used for cases of absence seizures with status epilepticus that are not intractable.

Which Epilepsy ICD Codes are Billable:

  • G40.801: Yes
  • G40.802: Yes
  • G40.909: Yes
  • G40.211: Yes
  • G40.A01: Yes

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
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Commonly asked questions

When to use an Epilepsy ICD code?

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.

What are the common treatments for Epilepsy Diagnosis Codes?

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.

What does a diagnosis code for Epilepsy mean?

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.

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