ICD-10-CM category
T58: Toxic effect of carbon monoxide
Codes under T58 (Toxic effect of carbon monoxide). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| T58.0 | Toxic effect of carbon monoxide from motor vehicle exhaust | — |
| T58.0 | Toxic effect of carbon monoxide from motor vehicle exhaust | — |
| T58.01 | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional) | — |
| T58.01 | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional) | — |
| T58.1 | Toxic effect of carbon monoxide from utility gas | — |
| T58.1 | Toxic effect of carbon monoxide from utility gas | — |
| T58.01XA | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), initial encounter | ✓ |
| T58.01XA | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), initial encounter | ✓ |
| T58.01XD | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), subsequent encounter | ✓ |
| T58.01XD | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), subsequent encounter | ✓ |
| T58.01XS | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), sequela | ✓ |
| T58.01XS | Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional), sequela | ✓ |
| T58.02 | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm | — |
| T58.02 | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm | — |
| T58.2 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels | — |
| T58.2 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels | — |
| T58.2X | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels | — |
| T58.2X | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels | — |
| T58.2X1 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional) | — |
| T58.2X1 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional) | — |
| T58.2X1A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), initial encounter | ✓ |
| T58.2X1A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), initial encounter | ✓ |
| T58.2X1D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), subsequent encounter | ✓ |
| T58.2X1D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), subsequent encounter | ✓ |
| T58.2X1S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), sequela | ✓ |
| T58.2X1S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional), sequela | ✓ |
| T58.2X2 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm | — |
| T58.2X2 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm | — |
| T58.2X2A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, initial encounter | ✓ |
| T58.2X2A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, initial encounter | ✓ |
| T58.2X2D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, subsequent encounter | ✓ |
| T58.2X2D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, subsequent encounter | ✓ |
| T58.2X2S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, sequela | ✓ |
| T58.2X2S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm, sequela | ✓ |
| T58.2X3 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault | — |
| T58.2X3 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault | — |
| T58.2X3A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, initial encounter | ✓ |
| T58.2X3A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, initial encounter | ✓ |
| T58.2X3D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, subsequent encounter | ✓ |
| T58.2X3D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, subsequent encounter | ✓ |
| T58.2X3S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, sequela | ✓ |
| T58.2X3S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault, sequela | ✓ |
| T58.2X4 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined | — |
| T58.2X4 | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined | — |
| T58.2X4A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, initial encounter | ✓ |
| T58.2X4A | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, initial encounter | ✓ |
| T58.2X4D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, subsequent encounter | ✓ |
| T58.2X4D | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, subsequent encounter | ✓ |
| T58.2X4S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, sequela | ✓ |
| T58.2X4S | Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined, sequela | ✓ |
| T58.02XA | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, initial encounter | ✓ |
| T58.02XA | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, initial encounter | ✓ |
| T58.02XD | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, subsequent encounter | ✓ |
| T58.02XD | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, subsequent encounter | ✓ |
| T58.02XS | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, sequela | ✓ |
| T58.02XS | Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm, sequela | ✓ |
| T58.03 | Toxic effect of carbon monoxide from motor vehicle exhaust, assault | — |
| T58.03 | Toxic effect of carbon monoxide from motor vehicle exhaust, assault | — |
| T58.03XA | Toxic effect of carbon monoxide from motor vehicle exhaust, assault, initial encounter | ✓ |
| T58.03XA | Toxic effect of carbon monoxide from motor vehicle exhaust, assault, initial encounter | ✓ |
| T58.03XD | Toxic effect of carbon monoxide from motor vehicle exhaust, assault, subsequent encounter | ✓ |
| T58.03XD | Toxic effect of carbon monoxide from motor vehicle exhaust, assault, subsequent encounter | ✓ |
| T58.03XS | Toxic effect of carbon monoxide from motor vehicle exhaust, assault, sequela | ✓ |
| T58.03XS | Toxic effect of carbon monoxide from motor vehicle exhaust, assault, sequela | ✓ |
| T58.04 | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined | — |
| T58.04 | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined | — |
| T58.04XA | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, initial encounter | ✓ |
| T58.04XA | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, initial encounter | ✓ |
| T58.04XD | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter | ✓ |
| T58.04XD | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter | ✓ |
| T58.04XS | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, sequela | ✓ |
| T58.04XS | Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, sequela | ✓ |
| T58.8 | Toxic effect of carbon monoxide from other source | — |
| T58.8 | Toxic effect of carbon monoxide from other source | — |
| T58.8X | Toxic effect of carbon monoxide from other source | — |
| T58.8X | Toxic effect of carbon monoxide from other source | — |
| T58.8X1 | Toxic effect of carbon monoxide from other source, accidental (unintentional) | — |
| T58.8X1 | Toxic effect of carbon monoxide from other source, accidental (unintentional) | — |
| T58.8X1A | Toxic effect of carbon monoxide from other source, accidental (unintentional), initial encounter | ✓ |
| T58.8X1A | Toxic effect of carbon monoxide from other source, accidental (unintentional), initial encounter | ✓ |
| T58.8X1D | Toxic effect of carbon monoxide from other source, accidental (unintentional), subsequent encounter | ✓ |
| T58.8X1D | Toxic effect of carbon monoxide from other source, accidental (unintentional), subsequent encounter | ✓ |
| T58.8X1S | Toxic effect of carbon monoxide from other source, accidental (unintentional), sequela | ✓ |
| T58.8X1S | Toxic effect of carbon monoxide from other source, accidental (unintentional), sequela | ✓ |
| T58.8X2 | Toxic effect of carbon monoxide from other source, intentional self-harm | — |
| T58.8X2 | Toxic effect of carbon monoxide from other source, intentional self-harm | — |
| T58.8X2A | Toxic effect of carbon monoxide from other source, intentional self-harm, initial encounter | ✓ |
| T58.8X2A | Toxic effect of carbon monoxide from other source, intentional self-harm, initial encounter | ✓ |
| T58.8X2D | Toxic effect of carbon monoxide from other source, intentional self-harm, subsequent encounter | ✓ |
| T58.8X2D | Toxic effect of carbon monoxide from other source, intentional self-harm, subsequent encounter | ✓ |
| T58.8X2S | Toxic effect of carbon monoxide from other source, intentional self-harm, sequela | ✓ |
| T58.8X2S | Toxic effect of carbon monoxide from other source, intentional self-harm, sequela | ✓ |
| T58.8X3 | Toxic effect of carbon monoxide from other source, assault | — |
| T58.8X3 | Toxic effect of carbon monoxide from other source, assault | — |
| T58.8X3A | Toxic effect of carbon monoxide from other source, assault, initial encounter | ✓ |
| T58.8X3A | Toxic effect of carbon monoxide from other source, assault, initial encounter | ✓ |
| T58.8X3D | Toxic effect of carbon monoxide from other source, assault, subsequent encounter | ✓ |
| T58.8X3D | Toxic effect of carbon monoxide from other source, assault, subsequent encounter | ✓ |
| T58.8X3S | Toxic effect of carbon monoxide from other source, assault, sequela | ✓ |
| T58.8X3S | Toxic effect of carbon monoxide from other source, assault, sequela | ✓ |
| T58.8X4 | Toxic effect of carbon monoxide from other source, undetermined | — |
| T58.8X4 | Toxic effect of carbon monoxide from other source, undetermined | — |
| T58.8X4A | Toxic effect of carbon monoxide from other source, undetermined, initial encounter | ✓ |
| T58.8X4A | Toxic effect of carbon monoxide from other source, undetermined, initial encounter | ✓ |
| T58.8X4D | Toxic effect of carbon monoxide from other source, undetermined, subsequent encounter | ✓ |
| T58.8X4D | Toxic effect of carbon monoxide from other source, undetermined, subsequent encounter | ✓ |
| T58.8X4S | Toxic effect of carbon monoxide from other source, undetermined, sequela | ✓ |
| T58.8X4S | Toxic effect of carbon monoxide from other source, undetermined, sequela | ✓ |
| T58.9 | Toxic effect of carbon monoxide from unspecified source | — |
| T58.9 | Toxic effect of carbon monoxide from unspecified source | — |
| T58.11 | Toxic effect of carbon monoxide from utility gas, accidental (unintentional) | — |
| T58.11 | Toxic effect of carbon monoxide from utility gas, accidental (unintentional) | — |
| T58.11XA | Toxic effect of carbon monoxide from utility gas, accidental (unintentional), initial encounter | ✓ |
| T58.11XA | Toxic effect of carbon monoxide from utility gas, accidental (unintentional), initial encounter | ✓ |
| T58.11XD | Toxic effect of carbon monoxide from utility gas, accidental (unintentional), subsequent encounter | ✓ |
| T58.11XD | Toxic effect of carbon monoxide from utility gas, accidental (unintentional), subsequent encounter | ✓ |
| T58.11XS | Toxic effect of carbon monoxide from utility gas, accidental (unintentional), sequela | ✓ |
| T58.11XS | Toxic effect of carbon monoxide from utility gas, accidental (unintentional), sequela | ✓ |
| T58.12 | Toxic effect of carbon monoxide from utility gas, intentional self-harm | — |
| T58.12 | Toxic effect of carbon monoxide from utility gas, intentional self-harm | — |
| T58.12XA | Toxic effect of carbon monoxide from utility gas, intentional self-harm, initial encounter | ✓ |
| T58.12XA | Toxic effect of carbon monoxide from utility gas, intentional self-harm, initial encounter | ✓ |
| T58.12XD | Toxic effect of carbon monoxide from utility gas, intentional self-harm, subsequent encounter | ✓ |
| T58.12XD | Toxic effect of carbon monoxide from utility gas, intentional self-harm, subsequent encounter | ✓ |
| T58.12XS | Toxic effect of carbon monoxide from utility gas, intentional self-harm, sequela | ✓ |
| T58.12XS | Toxic effect of carbon monoxide from utility gas, intentional self-harm, sequela | ✓ |
| T58.13 | Toxic effect of carbon monoxide from utility gas, assault | — |
| T58.13 | Toxic effect of carbon monoxide from utility gas, assault | — |
| T58.13XA | Toxic effect of carbon monoxide from utility gas, assault, initial encounter | ✓ |
| T58.13XA | Toxic effect of carbon monoxide from utility gas, assault, initial encounter | ✓ |
| T58.13XD | Toxic effect of carbon monoxide from utility gas, assault, subsequent encounter | ✓ |
| T58.13XD | Toxic effect of carbon monoxide from utility gas, assault, subsequent encounter | ✓ |
| T58.13XS | Toxic effect of carbon monoxide from utility gas, assault, sequela | ✓ |
| T58.13XS | Toxic effect of carbon monoxide from utility gas, assault, sequela | ✓ |
| T58.14 | Toxic effect of carbon monoxide from utility gas, undetermined | — |
| T58.14 | Toxic effect of carbon monoxide from utility gas, undetermined | — |
| T58.14XA | Toxic effect of carbon monoxide from utility gas, undetermined, initial encounter | ✓ |
| T58.14XA | Toxic effect of carbon monoxide from utility gas, undetermined, initial encounter | ✓ |
| T58.14XD | Toxic effect of carbon monoxide from utility gas, undetermined, subsequent encounter | ✓ |
| T58.14XD | Toxic effect of carbon monoxide from utility gas, undetermined, subsequent encounter | ✓ |
| T58.14XS | Toxic effect of carbon monoxide from utility gas, undetermined, sequela | ✓ |
| T58.14XS | Toxic effect of carbon monoxide from utility gas, undetermined, sequela | ✓ |
| T58.91 | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional) | — |
| T58.91 | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional) | — |
| T58.91XA | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), initial encounter | ✓ |
| T58.91XA | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), initial encounter | ✓ |
| T58.91XD | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), subsequent encounter | ✓ |
| T58.91XD | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), subsequent encounter | ✓ |
| T58.91XS | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), sequela | ✓ |
| T58.91XS | Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), sequela | ✓ |
| T58.92 | Toxic effect of carbon monoxide from unspecified source, intentional self-harm | — |
| T58.92 | Toxic effect of carbon monoxide from unspecified source, intentional self-harm | — |
| T58.92XA | Toxic effect of carbon monoxide from unspecified source, intentional self-harm, initial encounter | ✓ |
| T58.92XA | Toxic effect of carbon monoxide from unspecified source, intentional self-harm, initial encounter | ✓ |
| T58.92XD | Toxic effect of carbon monoxide from unspecified source, intentional self-harm, subsequent encounter | ✓ |
| T58.92XD | Toxic effect of carbon monoxide from unspecified source, intentional self-harm, subsequent encounter | ✓ |
| T58.92XS | Toxic effect of carbon monoxide from unspecified source, intentional self-harm, sequela | ✓ |
| T58.92XS | Toxic effect of carbon monoxide from unspecified source, intentional self-harm, sequela | ✓ |
| T58.93 | Toxic effect of carbon monoxide from unspecified source, assault | — |
| T58.93 | Toxic effect of carbon monoxide from unspecified source, assault | — |
| T58.93XA | Toxic effect of carbon monoxide from unspecified source, assault, initial encounter | ✓ |
| T58.93XA | Toxic effect of carbon monoxide from unspecified source, assault, initial encounter | ✓ |
| T58.93XD | Toxic effect of carbon monoxide from unspecified source, assault, subsequent encounter | ✓ |
| T58.93XD | Toxic effect of carbon monoxide from unspecified source, assault, subsequent encounter | ✓ |
| T58.93XS | Toxic effect of carbon monoxide from unspecified source, assault, sequela | ✓ |
| T58.93XS | Toxic effect of carbon monoxide from unspecified source, assault, sequela | ✓ |
| T58.94 | Toxic effect of carbon monoxide from unspecified source, undetermined | — |
| T58.94 | Toxic effect of carbon monoxide from unspecified source, undetermined | — |
| T58.94XA | Toxic effect of carbon monoxide from unspecified source, undetermined, initial encounter | ✓ |
| T58.94XA | Toxic effect of carbon monoxide from unspecified source, undetermined, initial encounter | ✓ |
| T58.94XD | Toxic effect of carbon monoxide from unspecified source, undetermined, subsequent encounter | ✓ |
| T58.94XD | Toxic effect of carbon monoxide from unspecified source, undetermined, subsequent encounter | ✓ |
| T58.94XS | Toxic effect of carbon monoxide from unspecified source, undetermined, sequela | ✓ |
| T58.94XS | Toxic effect of carbon monoxide from unspecified source, undetermined, sequela | ✓ |
Frequently asked questions
What is ICD-10-CM code T58?
T58 is an ICD-10-CM category covering Toxic effect of carbon monoxide. It contains 174 more specific diagnosis codes, 120 of which are billable.
Is T58 a billable code?
No — T58 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example T58.0 — Toxic effect of carbon monoxide from motor vehicle exhaust). 120 of the 174 codes under T58 are billable.
What codes fall under T58?
T58 includes T58.0, T58.0, T58.01, T58.01, T58.1, plus 169 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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