M20Acquired deformities of fingers and toes
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use M20 directly
Use the most specific code supported by the record.
- Chapter XIII
- musculoskeletal system and connective tissue
- Group M00-M25
- Bệnh lý khớp
- Official Vietnamese name
- Biến dạng mắc phải của ngón tay và/hoặc ngón chân
- Additional WHO coding guidance
- Excl.: acquired absence of fingers and toes (Z89.-) congenital: absence of fingers and toes (Q71.3, Q72.3) deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)
Related M20 codes
M20.0
Primary diagnosis candidate
Deformity of finger(s)
M20.1
Primary diagnosis candidate
Hallux valgus (acquired)
M20.2
Primary diagnosis candidate
Hallux rigidus
M20.3
Primary diagnosis candidate
Other deformity of hallux (acquired)
M20.4
Primary diagnosis candidate
Other hammer toe(s) (acquired)
M20.5
Primary diagnosis candidate
Other deformities of toe(s) (acquired)
M20.6
Primary diagnosis candidate
Acquired deformity of toe(s), 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.
