ICD10Check
CheckerBrowseOpen

G40.91

⚠ Non-billable (Header)

Epilepsy, unspecified, intractable

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

Also Known As

Intractable seizure disorder NOS
✅ No additional coding notes for G40.91

Child Codes (2)

G40.911Epilepsy, unspecified, intractable, with status epilepticusG40.919Epilepsy, unspecified, intractable, without status epilepticus

🧪 Validate Combinations

Add G40.91 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeG40.91
BillableNo — Header code
ParentG40.9
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)