G40.5
Non-billableEpileptic seizures related to external causes
Epileptic seizures related to external causes
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
- Epileptic seizures related to alcohol
- Epileptic seizures related to drugs
- Epileptic seizures related to hormonal changes
- Epileptic seizures related to sleep deprivation
- Epileptic seizures related to stress
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 periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •hippocampal sclerosisG93.81
- •mesial temporal sclerosisG93.81
- •temporal sclerosisG93.81
- •Todd's paralysisG83.84
Use Additional Code
Additional codes that should follow this code
Code Also
A second code may be required; sequencing depends on circumstances
Child Codes (1)
Related Codes(10)
G40.0Local-rel (focal) idio epilepsy w seizures of loc onset
G40.1Local-rel (focal) symptc epilepsy w simple partial seizures
G40.2Local-rel (focal) symptc epilepsy w complex partial seizures
G40.3Generalized idiopathic epilepsy and epileptic syndromes
G40.4Other generalized epilepsy and epileptic syndromes
G40.8Other epilepsy and recurrent seizures
G40.9Epilepsy, unspecified
G40.AAbsence epileptic syndrome
G40.BJuvenile myoclonic epilepsy [impulsive petit mal]
G40.CLafora progressive myoclonus epilepsy
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(7)
UMLS
- Epileptic seizures related to alcoholC2875118
- Epileptic seizures related to drugsC2875119
- Epileptic seizures related to external causesC3263970
- Epileptic seizures related to external causes, NOSC3263970
- Epileptic seizures related to hormonal changesC2875120
- Epileptic seizures related to sleep deprivationC2875121
- Epileptic seizures related to stressC2875122
Frequently Asked Questions
What is the ICD-10 code for epileptic seizures related to external causes?
The ICD-10-CM code for epileptic seizures related to external causes is G40.5. The full clinical description is "Epileptic seizures related to external causes". G40.5 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code G40.5 mean?
ICD-10-CM code G40.5 represents “Epileptic seizures related to external causes”. 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 G40.5 a billable code?
No, G40.5 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 1 child codes under G40.5.
What chapter is G40.5 in?
G40.5 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G40.5?
G40.5 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 G40.5?
G40.5 has 1 child code, including: G40.50 (Epileptic seizures related to external causes, not ntrct).
Are additional codes required with G40.5?
Yes, when using G40.5, also report: adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).
What are the UMLS CUIs for G40.5?
G40.5 is linked to 6 UMLS Concept Unique Identifiers: C2875118, C2875119, C3263970, C2875120, C2875121, and 1 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G40.5 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like epileptic seizures related to external causes affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G40.5?
G40.5 maps to the ICD-11 code: 8A60.Z (Epilepsy due to unspecified structural or metabolic condition or disease).
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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.