G24.1Idiopathic familial dystonia
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 G20-G26
- Extrapyramidal and movement disorders
- Official Vietnamese name
- Loạn trương lực cơ vô căn có yếu tố gia đình
- Additional WHO coding guidance
- Idiopathic dystonia NOS
Related G24 codes
G24
Dystonia
G24.0
Primary diagnosis candidate
Drug-induced dystonia
G24.2
Primary diagnosis candidate
Idiopathic nonfamilial dystonia
G24.3
Primary diagnosis candidate
Spasmodic torticollis
G24.4
Primary diagnosis candidate
Idiopathic orofacial dystonia
G24.5
Primary diagnosis candidate
Blepharospasm
G24.8
Primary diagnosis candidate
Other dystonia
G24.9
Primary diagnosis candidate
Dystonia, 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.
