G40.1Localization- related (focal)(partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures
Code usage status
Primary diagnosis
May be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Complete code in the classification
Use when the diagnosis matches and no exclusion applies.
- Chapter VI
- Diseases of the nervous system
- Group G40-G47
- Episodic and paroxysmal disorders
- Official Vietnamese name
- Bệnh động kinh cục bộ có triệu chứng (khu trú) (một phần) và/hoặc hội chứng động kinh có cơn co giật cục bộ đơn giản
- Additional WHO coding guidance
- Attacks without alteration of consciousness Simple partial seizures developing into secondarily generalized seizures
Related G40 codes
G40
Epilepsy
G40.0
Primary diagnosis candidate
Localization- related (focal)(partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
G40.2
Primary diagnosis candidate
Localization- related (focal)(partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures
G40.3
Primary diagnosis candidate
Generalized idiopathic epilepsy and epileptic syndromes
G40.4
Primary diagnosis candidate
Other generalized epilepsy and epileptic syndromes
G40.5
Primary diagnosis candidate
Special epileptic syndromes
G40.6
Primary diagnosis candidate
Grand mal seizures, unspecified (with or without petit mal)
G40.7
Primary diagnosis candidate
Petit mal, unspecified, without grand mal seizures
G40.8
Primary diagnosis candidate
Other epilepsy
G40.9
Primary diagnosis candidate
Epilepsy, unspecified
Clinical record checklist
View coding guide →- Confirm that the code matches the final documented diagnosis.
- Use one primary-diagnosis code and record only relevant additional conditions.
- Review Ministry indicators, inclusions, exclusions and notes.
- Do not infer a diagnosis beyond the clinical record.
2026 regulatory basis
Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.
