Z35.9Supervision of high- risk pregnancy, unspecified
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.
- Official Vietnamese name
- Theo dõi thai phụ có nguy cơ cao, không xác định
Related Z35 codes
Z35
Supervision of high- risk pregnancy
Z35.0
Primary diagnosis candidate
Supervision of pregnancy with history of infertility
Z35.1
Primary diagnosis candidate
Supervision of pregnancy with history of abortive outcome
Z35.2
Primary diagnosis candidate
Supervision of pregnancy with other poor reproductive or obstetric history
Z35.3
Primary diagnosis candidate
Supervision of pregnancy with history of insufficient antenatal care
Z35.4
Primary diagnosis candidate
Supervision of pregnancy with grand multiparity
Z35.5
Primary diagnosis candidate
Supervision of elderly primigravida
Z35.6
Primary diagnosis candidate
Supervision of very young primigravida
Z35.7
Primary diagnosis candidate
Supervision of high- risk pregnancy due to social problems
Z35.8
Primary diagnosis candidate
Supervision of other high-risk pregnancies
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.
