M34.1CR(E)ST syndrome
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 M30-M36
- tissue disorders
- Official Vietnamese name
- Hội chứng CR(E)ST
- Additional WHO coding guidance
- Combination of calcinosis, Raynaud phenomenon, (o)esophageal dysfunction, sclerodactyly, telangiectasia.
Related M34 codes
M34
Systemic sclerosis
M34.0
Primary diagnosis candidate
Progressive systemic sclerosis
M34.2
Primary diagnosis candidate
Systemic sclerosis induced by drugs and chemicals
M34.8
Primary diagnosis candidate
Other forms of systemic sclerosis
M34.9
Primary diagnosis candidate
Systemic sclerosis, 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.
