2021 ICD-10-CM Code G40.909
Epilepsy, unspecified, not intractable, without status epilepticus
Valid for Submission
G40.909 is a billable diagnosis code used to specify a medical diagnosis of epilepsy, unspecified, not intractable, without status epilepticus. The code G40.909 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G40.909 might also be used to specify conditions or terms like acute gastroenteritis, alopecia universalis, alopecia, epilepsy, intellectual disability syndrome moynahan type, alopecia, psychomotor epilepsy, periodontal pyorrhea, intellectual disability syndrome, arachnoid cyst , atherosclerosis, deafness, diabetes, epilepsy, nephropathy syndrome, etc.
Unspecified diagnosis codes like G40.909 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
ICD-10: | G40.909 |
Short Description: | Epilepsy, unsp, not intractable, without status epilepticus |
Long Description: | Epilepsy, unspecified, not intractable, without status epilepticus |
Code Classification
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G40.909:
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Epilepsy NOS
- Epileptic convulsions NOS
- Epileptic fits NOS
- Epileptic seizures NOS
- Recurrent seizures NOS
- Seizure disorder NOS
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G40.909 are found in the index:
- - Disorder (of) - See Also: Disease;
- - seizure - See Also: Epilepsy; - G40.909
- - Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure) - G40.909
- - not intractable - G40.909
- - without status epilepticus - G40.909
- - not intractable - G40.909
- - Seizure (s) - See Also: Convulsions; - R56.9
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Acute gastroenteritis
- Alopecia universalis
- Alopecia, epilepsy, intellectual disability syndrome Moynahan type
- Alopecia, psychomotor epilepsy, periodontal pyorrhea, intellectual disability syndrome
- Arachnoid cyst
- Atherosclerosis, deafness, diabetes, epilepsy, nephropathy syndrome
- Aura
- Autism epilepsy syndrome due to branched chain ketoacid dehydrogenase kinase deficiency
- Autism spectrum disorder, epilepsy, arthrogryposis syndrome
- Autistic disorder of childhood onset
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to RUBCN deficiency
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to TUD deficiency
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to WWOX deficiency
- Benign infantile seizure with mild gastroenteritis syndrome
- Brachydactyly of hand
- Celiac disease
- Celiac disease with epilepsy and cerebral calcification syndrome
- Congenital muscular dystrophy with intellectual disability and severe epilepsy
- Conjunctival telangiectasis
- Cortical blindness
- Dementia with behavioral disturbance
- Disorder confirmed
- Early infantile epileptic encephalopathy with suppression bursts
- Early-onset epileptic encephalopathy and intellectual disability due to GRIN2A mutation
- Early-onset epileptic encephalopathy, cortical blindness, intellectual disability, facial dysmorphism syndrome
- Epilepsy
- Epilepsy associated problems
- Epilepsy care arrangement
- Epilepsy confirmed
- Epilepsy control good
- Epilepsy control poor
- Epilepsy co-occurrent and due to degenerative brain disorder
- Epilepsy co-occurrent and due to dementia
- Epilepsy co-occurrent and due to demyelinating disorder
- Epilepsy co-occurrent and due to mesial temporal sclerosis
- Epilepsy due to and following traumatic brain injury
- Epilepsy due to cerebrovascular accident
- Epilepsy due to immune disorder
- Epilepsy due to infectious disease of central nervous system
- Epilepsy due to intracranial tumor
- Epilepsy due to perinatal anoxic-ischemic brain injury
- Epilepsy due to perinatal stroke
- Epilepsy in mother complicating childbirth
- Epilepsy in mother complicating pregnancy
- Epilepsy severity
- Epilepsy telangiectasia syndrome
- Epilepsy treatment changed
- Epilepsy treatment started
- Epilepsy undetermined whether focal or generalized
- Epilepsy, microcephaly, skeletal dysplasia syndrome
- Epilepsy, not refractory
- Epileptic aura
- Epileptic dementia with behavioral disturbance
- Epileptic drop attack
- Epileptic encephalopathy
- Epileptic encephalopathy with global cerebral demyelination
- Epileptic psychosis
- Epileptic seizure
- Epileptic vertigo
- Female restricted epilepsy with intellectual disability syndrome
- Generalized convulsive epilepsy
- Hyperekplexia epilepsy syndrome
- Hyperexplexia
- Infant epilepsy with migrant focal crisis
- Infantile epileptic dyskinetic encephalopathy
- Infantile gastroenteritis
- Intellectual disability, epilepsy, bulbous nose syndrome
- KCNQ2-related epileptic encephalopathy
- Macrogyria
- MEHMO syndrome
- Mesial temporal lobe sclerosis
- Multiple congenital anomalies, hypotonia, seizures syndrome
- Myoclonic encephalopathy
- Neonatal diabetes mellitus
- Neurological disorder confirmed
- No epilepsy drug side effects
- No seizures on treatment
- Pachygyria, intellectual disability, epilepsy syndrome
- Paranoid-hallucinatory epileptic psychosis
- Periodontitis co-occurrent with genetic disorder
- Permanent neonatal diabetes mellitus
- Post-cerebrovascular accident epilepsy
- Postseizure confusion
- Postseizure delirium
- Primary microcephaly, epilepsy, permanent neonatal diabetes syndrome
- Severe intellectual disability, epilepsy, anal anomaly, distal phalangeal hypoplasia syndrome
- Skeletal dysplasia with epilepsy and short stature syndrome
- STXBP1 encephalopathy with epilepsy
- Symptomatic generalized epilepsy
- Symptomatic generalized epilepsy
- Symptomatic generalized epilepsy
- Temporal lobe sclerosis
- Third cranial nerve finding
- Transient epileptic amnesia
- Triple X syndrome, epilepsy, and hypogammaglobulinemia
- Unilateral epilepsy
- Vascular abnormality of conjunctiva
- X-linked epilepsy with learning disability and behavior disorder syndrome
- X-linked intellectual disability and epilepsy with progressive joint contracture and facial dysmorphism syndrome
- X-linked spasticity, intellectual disability, epilepsy syndrome
Convert G40.909 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code G40.909 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 345.90 - Epilep NOS w/o intr epil (Approximate Flag)
Information for Patients
Epilepsy
Epilepsy is a brain disorder that causes people to have recurring seizures. The seizures happen when clusters of nerve cells, or neurons, in the brain send out the wrong signals. People may have strange sensations and emotions or behave strangely. They may have violent muscle spasms or lose consciousness.
Epilepsy has many possible causes, including illness, brain injury, and abnormal brain development. In many cases, the cause is unknown.
Doctors use brain scans and other tests to diagnose epilepsy. It is important to start treatment right away. There is no cure for epilepsy, but medicines can control seizures for most people. When medicines are not working well, surgery or implanted devices such as vagus nerve stimulators may help. Special diets can help some children with epilepsy.
NIH: National Institute of Neurological Disorders and Stroke
- Brain surgery (Medical Encyclopedia)
- EEG (Medical Encyclopedia)
- Epilepsy (Medical Encyclopedia)
- Epilepsy - children (Medical Encyclopedia)
- Epilepsy - children - discharge (Medical Encyclopedia)
- Epilepsy or seizures - discharge (Medical Encyclopedia)
[Learn More]
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)