Non-Billable / Non-Specific Code
ICD-10-CM G40 is the diagnosis code for Epilepsy and recurrent seizures. This code falls under the section "Episodic and paroxysmal disorders" within Chapter 6 â 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.
The following conditions should never be coded at the same time as G40. They are mutually exclusive:
The following conditions are not included in G40. If the patient has both, code each condition separately:
Understanding where G40 sits in the ICD-10-CM classification helps ensure proper coding:
No, G40 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
G40 is the ICD-10-CM diagnosis code for "Epilepsy and recurrent seizures". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
G40 is located in Section G40-G47 â "Episodic and paroxysmal disorders" within Chapter 6 of the ICD-10-CM Tabular List.
G40 has 11 sub-code(s) that provide more specific detail: G40.0, G40.1, G40.2, G40.3, G40.4 and more.
Use G40 when the patients documented diagnosis matches "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.
The ICD-10-CM code for Epilepsy and recurrent seizures is G40.
No, G40 is non-billable. Use a more specific sub-code for primary diagnosis billing.
G40 is in Chapter 6 of the ICD-10-CM Tabular List.
Type 1 Excludes for G40 include: conversion disorder with seizures (F44.5); convulsions NOS (R56.9); post traumatic seizures (R56.1) and more.
Yes, G40 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.