G40.91
Non-billableEpilepsy, unspecified, intractable
Epilepsy, unspecified, intractable
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Intractable seizure disorder NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- hippocampal sclerosis (G93.81)
- mesial temporal sclerosis (G93.81)
- temporal sclerosis (G93.81)
- Todd's paralysis (G83.84)
Child Codes (2)
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for epilepsy, unspecified, intractable?
The ICD-10-CM code for epilepsy, unspecified, intractable is G40.91. The full clinical description is "Epilepsy, unspecified, intractable". G40.91 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code G40.91 mean?
ICD-10-CM code G40.91 represents "Epilepsy, unspecified, intractable". It is classified under Chapter 6: Diseases of the Nervous System and is a non-billable header code. Use a more specific child code for billing purposes.
Is G40.91 a billable code?
No, G40.91 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under G40.91.
What chapter is G40.91 in?
G40.91 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G40.91?
G40.91 has Excludes1 notes indicating codes that cannot be used together with it, including: conversion disorder with seizures (F44.5); convulsions NOS (R56.9); post traumatic seizures (R56.1); and 2 more.
What are the subcategories under G40.91?
G40.91 has 2 child codes, including: G40.911 (Epilepsy, unspecified, intractable, with status epilepticus), G40.919 (Epilepsy, unsp, intractable, without status epilepticus).
What are the UMLS CUIs for G40.91?
G40.91 is linked to 2 UMLS Concept Unique Identifiers: C2875141, C2976877. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.