K66Other disorders of peritoneum
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use K66 directly
Use the most specific code supported by the record.
- Chapter XI
- Diseases of the digestive system
- Group K65-K67
- Diseases of peritoneum
- Official Vietnamese name
- Rối loạn khác của phúc mạc
- Additional WHO coding guidance
- Excl.: ascites (R18)
Related K66 codes
K66.0
Primary diagnosis candidate
Peritoneal adhesions
K66.1
Primary diagnosis candidate
Haemoperitoneum
K66.2
Primary diagnosis candidate
Retroperitoneal fibrosis
K66.8
Primary diagnosis candidate
Other specified disorders of peritoneum
K66.9
Primary diagnosis candidate
Disorder of peritoneum, 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.
