ICD-10-CM category
T58 Toxic effect of carbon monoxide
T58 is a category, not a billable code. Report one of the 60 complete codes below.
T58.0…
12 codes
- T58.01XAToxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), initial encounter
- T58.01XDToxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), subsequent encounter
- T58.01XSToxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), sequela
- T58.02XAToxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, initial encounter
- T58.02XDToxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, subsequent encounter
- T58.02XSToxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, sequela
- T58.03XAToxic effect of carbon monoxide from motor vehicle exhaust, assault, initial encounter
- T58.03XDToxic effect of carbon monoxide from motor vehicle exhaust, assault, subsequent encounter
- T58.03XSToxic effect of carbon monoxide from motor vehicle exhaust, assault, sequela
- T58.04XAToxic effect of carbon monoxide from motor vehicle exhaust, undetermined, initial encounter
- T58.04XDToxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter
- T58.04XSToxic effect of carbon monoxide from motor vehicle exhaust, undetermined, sequela
T58.1…
12 codes
- T58.11XAToxic effect of carbon monoxide from utility gas, accidental (unintentional), initial encounter
- T58.11XDToxic effect of carbon monoxide from utility gas, accidental (unintentional), subsequent encounter
- T58.11XSToxic effect of carbon monoxide from utility gas, accidental (unintentional), sequela
- T58.12XAToxic effect of carbon monoxide from utility gas, intentional self-harm, initial encounter
- T58.12XDToxic effect of carbon monoxide from utility gas, intentional self-harm, subsequent encounter
- T58.12XSToxic effect of carbon monoxide from utility gas, intentional self-harm, sequela
- T58.13XAToxic effect of carbon monoxide from utility gas, assault, initial encounter
- T58.13XDToxic effect of carbon monoxide from utility gas, assault, subsequent encounter
- T58.13XSToxic effect of carbon monoxide from utility gas, assault, sequela
- T58.14XAToxic effect of carbon monoxide from utility gas, undetermined, initial encounter
- T58.14XDToxic effect of carbon monoxide from utility gas, undetermined, subsequent encounter
- T58.14XSToxic effect of carbon monoxide from utility gas, undetermined, sequela
T58.2…
12 codes
- T58.2X1AToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), initial encounter
- T58.2X1DToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), subsequent encounter
- T58.2X1SToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), sequela
- T58.2X2AToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, initial encounter
- T58.2X2DToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, subsequent encounter
- T58.2X2SToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, sequela
- T58.2X3AToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, initial encounter
- T58.2X3DToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, subsequent encounter
- T58.2X3SToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, sequela
- T58.2X4AToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, initial encounter
- T58.2X4DToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, subsequent encounter
- T58.2X4SToxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, sequela
T58.8…
12 codes
- T58.8X1AToxic effect of carbon monoxide from other source, accidental (unintentional), initial encounter
- T58.8X1DToxic effect of carbon monoxide from other source, accidental (unintentional), subsequent encounter
- T58.8X1SToxic effect of carbon monoxide from other source, accidental (unintentional), sequela
- T58.8X2AToxic effect of carbon monoxide from other source, intentional self-harm, initial encounter
- T58.8X2DToxic effect of carbon monoxide from other source, intentional self-harm, subsequent encounter
- T58.8X2SToxic effect of carbon monoxide from other source, intentional self-harm, sequela
- T58.8X3AToxic effect of carbon monoxide from other source, assault, initial encounter
- T58.8X3DToxic effect of carbon monoxide from other source, assault, subsequent encounter
- T58.8X3SToxic effect of carbon monoxide from other source, assault, sequela
- T58.8X4AToxic effect of carbon monoxide from other source, undetermined, initial encounter
- T58.8X4DToxic effect of carbon monoxide from other source, undetermined, subsequent encounter
- T58.8X4SToxic effect of carbon monoxide from other source, undetermined, sequela
T58.9…
12 codes
- T58.91XAToxic effect of carbon monoxide from unspecified source, accidental (unintentional), initial encounter
- T58.91XDToxic effect of carbon monoxide from unspecified source, accidental (unintentional), subsequent encounter
- T58.91XSToxic effect of carbon monoxide from unspecified source, accidental (unintentional), sequela
- T58.92XAToxic effect of carbon monoxide from unspecified source, intentional self-harm, initial encounter
- T58.92XDToxic effect of carbon monoxide from unspecified source, intentional self-harm, subsequent encounter
- T58.92XSToxic effect of carbon monoxide from unspecified source, intentional self-harm, sequela
- T58.93XAToxic effect of carbon monoxide from unspecified source, assault, initial encounter
- T58.93XDToxic effect of carbon monoxide from unspecified source, assault, subsequent encounter
- T58.93XSToxic effect of carbon monoxide from unspecified source, assault, sequela
- T58.94XAToxic effect of carbon monoxide from unspecified source, undetermined, initial encounter
- T58.94XDToxic effect of carbon monoxide from unspecified source, undetermined, subsequent encounter
- T58.94XSToxic effect of carbon monoxide from unspecified source, undetermined, sequela
Outside the US? T58 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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