M19.96Arthrosis, unspecified, lower leg
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 XIII
- musculoskeletal system and connective tissue
- Group M00-M25
- Bệnh lý khớp
- Official Vietnamese name
- Thoái hóa khớp, không xác định, cẳng chân
Related M19 codes
M19
Other arthrosis
M19.0
Primary arthrosis of other joints
M19.00
Primary diagnosis candidate
Primary arthrosis of other joints, multiple sites
M19.01
Primary diagnosis candidate
Primary arthrosis of other joints, shoulder region
M19.02
Primary diagnosis candidate
Primary arthrosis of other joints, upper arm
M19.03
Primary diagnosis candidate
Primary arthrosis of other joints, forearm
M19.04
Primary diagnosis candidate
Primary arthrosis of other joints, hand
M19.05
Primary diagnosis candidate
Primary arthrosis of other joints, pelvic region and thigh
M19.06
Primary diagnosis candidate
Primary arthrosis of other joints, lower leg
M19.07
Primary diagnosis candidate
Primary arthrosis of other joints, ankle and foot
M19.08
Primary diagnosis candidate
Primary arthrosis of other joints, other
M19.09
Primary diagnosis candidate
Primary arthrosis of other joints, site 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.
