Y42Hormones and their synthetic substitutes and antagonists, not elsewhere classified
Code usage status
Primary diagnosis
Must not be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use Y42 directly
Use the most specific code supported by the record.
- Group Y40-Y84
- Complications of medical and surgical care
- Official Vietnamese name
- Tác động bất lợi của nội tiệt tố [hormon] và/hoặc chất thay thế tổng hợp và/hoặc chất đối kháng, không phân loại mục khác
- Additional WHO coding guidance
- Excl.: mineralocorticoids and their antagonists (Y54.0-Y54.1) oxytocic hormones (Y55.0) parathyroid hormones and derivatives (Y54.7)
Related Y42 codes
Y42.0
Glucocorticoids and synthetic analogues
Y42.1
Thyroid hormones and substitutes
Y42.2
Antithyroid drugs
Y42.3
Insulin and oral hypoglycaemic [antidiabetic] drugs
Y42.4
Oral contraceptives
Y42.5
Other estrogens and progestogens
Y42.6
Antigonadotrophins , antiestrogens, antiandrogens, not elsewhere classified
Y42.7
Androgens and anabolic congeners
Y42.8
Other and unspecified hormones and their synthetic substitutes
Y42.9
Other and unspecified hormone antagonists
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.
