G40.8
Non-Billable

Other epilepsy and recurrent seizures

Non-Billable / Non-Specific Code

What is Other epilepsy and recurrent seizures?

ICD-10-CM G40.8 is the diagnosis code for Other epilepsy and recurrent seizures. This code falls under the section "Episodic and paroxysmal disorders" within Chapter 6 — Diseases of the nervous system (G00-G99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions

Coding Guidelines for G40.8

✅ This Code Includes

  • Epilepsies and epileptic syndromes undetermined as to whether they are focal or generalized
  • Landau-Kleffner syndrome

ICD-10-CM Code Hierarchy

Understanding where G40.8 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 6 entries
G40.80Other epilepsyNon-BillableG40.801Other epilepsy, not intractable, with status epilepticusBillableG40.802Other epilepsy, not intractable, without status epilepticusBillableG40.803Other epilepsy, intractable, with status epilepticusBillableG40.804Other epilepsy, intractable, without status epilepticusBillableG40.81Lennox-Gastaut syndromeNon-BillableG40.811Lennox-Gastaut syndrome, not intractable, with status epilepticusBillableG40.812Lennox-Gastaut syndrome, not intractable, without status epilepticusBillableG40.813Lennox-Gastaut syndrome, intractable, with status epilepticusBillableG40.814Lennox-Gastaut syndrome, intractable, without status epilepticusBillableG40.82Epileptic spasmsNon-BillableG40.821Epileptic spasms, not intractable, with status epilepticusBillableG40.822Epileptic spasms, not intractable, without status epilepticusBillableG40.823Epileptic spasms, intractable, with status epilepticusBillableG40.824Epileptic spasms, intractable, without status epilepticusBillableG40.83Dravet syndromeNon-BillableG40.833Dravet syndrome, intractable, with status epilepticusBillableG40.834Dravet syndrome, intractable, without status epilepticusBillableG40.84KCNQ2-related epilepsyNon-BillableG40.841KCNQ2-related epilepsy, not intractable, with status epilepticusBillableG40.842KCNQ2-related epilepsy, not intractable, without status epilepticusBillableG40.843KCNQ2-related epilepsy, intractable, with status epilepticusBillableG40.844KCNQ2-related epilepsy, intractable, without status epilepticusBillableG40.89Other seizuresBillable
Related Codes

Frequently Asked Questions

Is G40.8 a billable ICD-10-CM code?

No, G40.8 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does G40.8 mean?

G40.8 is the ICD-10-CM diagnosis code for "Other epilepsy and recurrent seizures". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of G40.8?

The parent code of G40.8 is G40 ("Epilepsy and recurrent seizures"). G40.8 provides a more specific classification within this category.

What section is G40.8 in?

G40.8 is located in Section G40-G47 — "Episodic and paroxysmal disorders" within Chapter 6 of the ICD-10-CM Tabular List.

What are the sub-codes of G40.8?

G40.8 has 6 sub-code(s) that provide more specific detail: G40.80, G40.81, G40.82, G40.83, G40.84 and more.

When should I use G40.8?

Use G40.8 when the patients documented diagnosis matches "Other epilepsy and recurrent seizures" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other epilepsy and recurrent seizures?

The ICD-10-CM code for Other epilepsy and recurrent seizures is G40.8.

Can G40.8 be used for primary diagnosis?

No, G40.8 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is G40.8 in?

G40.8 is in Chapter 6 of the ICD-10-CM Tabular List.

Is G40.8 valid for 2026?

Yes, G40.8 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousG40.509Epileptic seizures related to external causes, not intractable, without status epilepticusNext →G40.80Other epilepsy
Code Details
G40.8
Other epilepsy and recurrent seizures
Non-Billable / Non-Specific Code
6 — Diseases of the nervous system (G00-G99)
G40-G47 — Episodic and paroxysmal disorders
2026 ICD-10-CM