M91.3Pseudocoxalgia
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 M80-M94
- chondropathies
- Official Vietnamese name
- Bệnh hoại tử vô khuẩn chỏm xương đùi ở trẻ em [Legg-Calvé-Perthes]
Related M91 codes
M91
Juvenile osteochondrosis of hip and pelvis
M91.0
Primary diagnosis candidate
Juvenile osteochondrosis of pelvis
M91.1
Primary diagnosis candidate
Juvenile osteochondrosis of head of femur [Legg-Calvé- Perthes]
M91.2
Primary diagnosis candidate
Coxa plana
M91.8
Primary diagnosis candidate
Other juvenile osteochondrosis of hip and pelvis
M91.9
Primary diagnosis candidate
Juvenile osteochondrosis of hip and pelvis, 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.
