ICD-10 CM Code T58.9
T58.9
Toxic effect of carbon monoxide from unspecified source
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T58.91 Toxic effect of carbon monoxide from unspecified source, accidental (unintentional)
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T58.92 Toxic effect of carbon monoxide from unspecified source, intentional self-harm
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T58.93 Toxic effect of carbon monoxide from unspecified source, assault
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T58.94 Toxic effect of carbon monoxide from unspecified source, undetermined
Includes
- asphyxiation from carbon monoxide
- toxic effect of carbon monoxide from all sources
7th Character
- The appropriate 7th character is to be added to each code from category T58
- A - initial encounter
- D - subsequent encounter
- S - sequela
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