G40.109 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus
ICD-10-CM 2027 diagnosis code · Episodic and paroxysmal disorders
- Code
G40.109(claims format:G40109)- Description
- Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus
- Short description
- Local-rel symptc epi w simp prt seiz,not ntrct, w/o stat epi
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 6. Diseases of the nervous system (G00-G99)
- Block
- G40-G47 Episodic and paroxysmal disorders
- Parent codes
- G40 › G40.1 › G40.10
Notes for G40.109
- Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures NOS
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
G40 – Epilepsy and recurrent seizures
- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
G40.1 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures
- Attacks without alteration of consciousness
- Epilepsia partialis continua [Kozhevnikof]
- Simple partial seizures developing into secondarily generalized seizures
G40.10 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable
- Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures without intractability
Index terms for G40.109
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Kozhevnikof's epilepsy
- Kozhevnikof's epilepsy, not intractable
- Kozhevnikof's epilepsy, not intractable, without status epilepticus
- Epilepsy, epileptic, epilepsia, localization-related, symptomatic, with simple partial seizures
- Epilepsy, epileptic, epilepsia, syndromes, localization-related, symptomatic, with simple partial seizures
- Epilepsy, epileptic, epilepsia, localization-related, symptomatic, with simple partial seizures, not intractable
- Epilepsy, epileptic, epilepsia, syndromes, localization-related, symptomatic, with simple partial seizures, not intractable
- Epilepsy, epileptic, epilepsia, localization-related, symptomatic, with simple partial seizures, not intractable, without status epilepticus
- Epilepsy, epileptic, epilepsia, syndromes, localization-related, symptomatic, with simple partial seizures, not intractable, without status epilepticus
Related codes in G40.10
Frequently asked questions
What is ICD-10 code G40.109?
G40.109 is the ICD-10-CM code for localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus, in the block G40-G47 (Episodic and paroxysmal disorders).
Is G40.109 a billable code?
Yes. G40.109 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does G40.109 belong to?
It belongs to category G40 – Epilepsy and recurrent seizures.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.