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Chapter XX
Poisoning by and exposure to other gases and vapours, undetermined intent - Y17
[See pages 1013-1017 for fourth-character subdivisions]
Includes:
- carbon monoxide
- lacrimogenic gas [tear gas]
- motor (vehicle) exhaust gas
- nitrogen oxides
- sulfur dioxide
- utility gas
Excludes:
- metal fumes and vapours ( Y19.- )
Related drugs:
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