T58.12
⚠ Non-billable
Toxic effect of carbon monoxide from utility gas, intentional self-harm
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T58.12
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code T58.12?
ICD-10-CM code T58.12 represents Toxic effect of carbon monoxide from utility gas, intentional self-harm. It is a non-billable header code requiring a more specific subcategory in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T58.12 billable?
No. T58.12 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is T58.12 in?
T58.12 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T58 category
T58
Toxic effect of carbon monoxide
Non-billable
T58.0
Toxic effect of carbon monoxide from motor vehicle exhaust
Non-billable
T58.1
Toxic effect of carbon monoxide from utility gas
Non-billable
T58.2
Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels
Non-billable
T58.8
Toxic effect of carbon monoxide from other source
Non-billable
T58.9
Toxic effect of carbon monoxide from unspecified source
Non-billable
T58.01
Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional)
Non-billable
T58.02
Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm
Non-billable
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