Y17Poisoning by and exposure to carbon monoxide and other gases and vapours, undetermined intent
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 Y17 directly
Use the most specific code supported by the record.
- Group Y10-Y34
- Event of undetermind intent
- Official Vietnamese name
- Ngộ độc và/hoặc phơi nhiễm với carbon monoxide và/hoặc các khí và/hoặc hơi khác, không rõ mục đích
- Additional WHO coding guidance
- Excl.: carbon monoxide from smoke, fire and flames, undetermined intent (Y26) metal fumes and vapours (Y19)
Related Y17 codes
Y17.0
Poisoning by and exposure to carbon monoxide from combustion engine exhaust, undetermined intent
Y17.1
Poisoning by and exposure to carbon monoxide from utility gas, undetermined intent
Y17.2
Poisoning by and exposure to carbon monoxide from other domestic fuels, undetermined intent
Y17.3
Poisoning by and exposure to carbon monoxide from other sources, undetermined intent
Y17.4
Poisoning by and exposure to carbon monoxide from unspecified sources, undetermined intent
Y17.8
Poisoning by and exposure to other specified gases and vapours, undetermined intent
Y17.9
Poisoning by and exposure to unspecified gases and vapours, undetermined intent
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.
