M13.81Other specified arthritis, shoulder region
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
- Viêm khớp xác định khác, vùng vai
Related M13 codes
M13
Other arthritis
M13.0
Polyarthritis, unspecified
M13.00
Primary diagnosis candidate
Polyarthritis, unspecified, multiple sites
M13.01
Primary diagnosis candidate
Polyarthritis, unspecified, shoulder region
M13.02
Primary diagnosis candidate
Polyarthritis, unspecified, upper arm
M13.03
Primary diagnosis candidate
Polyarthritis, unspecified, forearm
M13.04
Primary diagnosis candidate
Polyarthritis, unspecified, hand
M13.05
Primary diagnosis candidate
Polyarthritis, unspecified, pelvic region and thigh
M13.06
Primary diagnosis candidate
Polyarthritis, unspecified, lower leg
M13.07
Primary diagnosis candidate
Polyarthritis, unspecified, ankle and foot
M13.08
Primary diagnosis candidate
Polyarthritis, unspecified, other
M13.09
Primary diagnosis candidate
Polyarthritis, unspecified, 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.
