E22.9Hyperfunction of pituitary gland, 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.
- Group E20-E35
- Disorders of other endocrine glands
- Official Vietnamese name
- Tăng cường chức năng tuyến yên, không xác định
Related E22 codes
E22
Hyperfunction of pituitary gland
E22.0
Primary diagnosis candidate
Acromegaly and pituitary gigantism
E22.1
Primary diagnosis candidate
Hyperprolactinaemi a
E22.2
Primary diagnosis candidate
Syndrome of inappropriate secretion of antidiuretic hormone
E22.8
Primary diagnosis candidate
Other hyperfunction of pituitary gland
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.
